{"id":2309,"date":"2026-05-26T23:06:35","date_gmt":"2026-05-26T15:06:35","guid":{"rendered":"http:\/\/www.preluna.xyz\/?p=2309"},"modified":"2026-05-27T17:00:18","modified_gmt":"2026-05-27T09:00:18","slug":"%e7%9c%9f%e6%95%b0%e3%80%81%e6%9c%ba%e5%99%a8%e6%95%b0%e3%80%81%e6%97%a0%e7%ac%a6%e5%8f%b7%e6%95%b0%e3%80%81%e6%9c%89%e7%ac%a6%e5%8f%b7%e6%95%b0%e5%8e%9f%e7%a0%81%e3%80%81%e5%8f%8d%e7%a0%81%e3%80%81","status":"publish","type":"post","link":"http:\/\/www.preluna.xyz\/index.php\/2026\/05\/26\/%e7%9c%9f%e6%95%b0%e3%80%81%e6%9c%ba%e5%99%a8%e6%95%b0%e3%80%81%e6%97%a0%e7%ac%a6%e5%8f%b7%e6%95%b0%e3%80%81%e6%9c%89%e7%ac%a6%e5%8f%b7%e6%95%b0%e5%8e%9f%e7%a0%81%e3%80%81%e5%8f%8d%e7%a0%81%e3%80%81\/preluna\/text\/","title":{"rendered":"\u771f\u6570\u3001\u673a\u5668\u6570\u3001\u65e0\u7b26\u53f7\u6570\u3001\u6709\u7b26\u53f7\u6570,\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u3001\u79fb\u7801\u7684\u672c\u8d28\u533a\u522b"},"content":{"rendered":"\n

\u771f\u6570\u662f\u4eba\u80fd\u7406\u89e3\u7684\u6570\u503c\uff0c\u673a\u5668\u6570\u662f\u8ba1\u7b97\u673a\u5185\u90e8\u6309\u56fa\u5b9a\u89c4\u5219\u7f16\u7801\u540e\u7684 0\/1 \u4e32\uff1b\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u3001\u79fb\u7801\u90fd\u662f\u6709\u7b26\u53f7\u6570\u7684\u673a\u5668\u6570\u8868\u793a\u65b9\u6cd5\u3002<\/strong><\/p>\n\n\n\n

\u4e00\u3001\u5148\u5206\u6e05\uff1a\u771f\u6570\u3001\u673a\u5668\u6570\u3001\u65e0\u7b26\u53f7\u6570\u3001\u6709\u7b26\u53f7\u6570<\/h2>\n\n\n\n

\u771f\u6570<\/strong>\u5c31\u662f\u6570\u672c\u8eab\uff0c\u5e26\u6709\u6b63\u8d1f\u53f7\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n

+45\n-45\n+0.1011\n-0.1011\n<\/code><\/pre>\n\n\n\n
\u673a\u5668\u6570<\/strong>\u662f\u628a\u7b26\u53f7\u4e5f\u7f16\u7801\u8fdb\u4e8c\u8fdb\u5236\u4f4d\u4e4b\u540e\u5f97\u5230\u7684\u5f62\u5f0f\uff0c\u4f8b\u5982 8 \u4f4d\u673a\u5668\u6570\uff1a<\/p>\n\n\n\n
00101101\n10101101\n11010011\n01010011\n<\/code><\/pre>\n\n\n\n
\u8fd9\u4e9b 0\/1 \u4e32\u672c\u8eab\u6ca1\u6709\u5929\u7136\u610f\u4e49\uff0c\u5fc5\u987b\u770b\u9898\u76ee\u8bf4\u660e\u5b83\u662f\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u8fd8\u662f\u79fb\u7801\u3002\u6bd4\u5982\u540c\u6837\u662f 11010011<\/code>\uff0c\u82e5\u6309\u8865\u7801\u89e3\u91ca\u662f -45<\/code>\uff0c\u82e5\u6309\u65e0\u7b26\u53f7\u6570\u89e3\u91ca\u5c31\u662f 211<\/code>\u3002<\/p>\n\n\n\n
408 \u9898\u91cc\u7ecf\u5e38\u9ed8\u8ba4\uff1an \u4f4d\u673a\u5668\u6570\u5305\u62ec\u7b26\u53f7\u4f4d<\/strong>\u3002\u4f8b\u5982 8 \u4f4d\u539f\u7801\u4e2d\uff0c\u6700\u9ad8\u4f4d\u662f\u7b26\u53f7\u4f4d\uff0c\u540e 7 \u4f4d\u662f\u6570\u503c\u4f4d\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e8c\u3001\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u3001\u79fb\u7801\u7684\u672c\u8d28\u533a\u522b<\/h2>\n\n\n\n
1. \u539f\u7801\uff1a\u6700\u9ad8\u4f4d\u8868\u793a\u7b26\u53f7\uff0c\u5176\u4f59\u4f4d\u8868\u793a\u7edd\u5bf9\u503c<\/h3>\n\n\n\n
\u539f\u7801\u6700\u7b26\u5408\u4eba\u7684\u76f4\u89c9\u3002<\/p>\n\n\n\n
\u6b63\u6570\uff1a\u7b26\u53f7\u4f4d 0\uff0c\u6570\u503c\u4f4d\u4e3a\u7edd\u5bf9\u503c\n\u8d1f\u6570\uff1a\u7b26\u53f7\u4f4d 1\uff0c\u6570\u503c\u4f4d\u4e3a\u7edd\u5bf9\u503c\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u8868\u793a +45<\/code> \u548c -45<\/code>\uff1a<\/p>\n\n\n\n
45 = 0101101   \/\/ 7 \u4f4d\u6570\u503c\u4f4d\n\n[+45]\u539f = 00101101\n[-45]\u539f = 10101101\n<\/code><\/pre>\n\n\n\n
\u539f\u7801\u7684\u4f18\u70b9\u662f\u76f4\u89c2\uff0c\u7f3a\u70b9\u662f\u52a0\u51cf\u8fd0\u7b97\u9ebb\u70e6\uff0c\u56e0\u4e3a\u7b26\u53f7\u548c\u6570\u503c\u8981\u5206\u5f00\u5904\u7406\u3002\u53e6\u5916\u539f\u7801\u6709\u4e24\u4e2a 0\uff1a<\/p>\n\n\n\n
[+0]\u539f = 00000000\n[-0]\u539f = 10000000\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5 n \u4f4d\u539f\u7801\u6574\u6570\u7684\u8868\u793a\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
-(2\u207f\u207b\u00b9 - 1) \u5230 +(2\u207f\u207b\u00b9 - 1)\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u539f\u7801\uff1a<\/p>\n\n\n\n
-127 \u5230 +127\n<\/code><\/pre>\n\n\n\n
\u6ce8\u610f\uff1a8 \u4f4d\u539f\u7801\u4e0d\u80fd\u8868\u793a -128<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
2. \u53cd\u7801\uff1a\u6b63\u6570\u540c\u539f\u7801\uff0c\u8d1f\u6570\u5728\u539f\u7801\u57fa\u7840\u4e0a\u6570\u503c\u4f4d\u53d6\u53cd<\/h3>\n\n\n\n
\u53cd\u7801\u662f\u539f\u7801\u548c\u8865\u7801\u4e4b\u95f4\u7684\u8fc7\u6e21\u5f62\u5f0f\u3002<\/p>\n\n\n\n
\u6b63\u6570\uff1a\u53cd\u7801 = \u539f\u7801\n\u8d1f\u6570\uff1a\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u6309\u4f4d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u8fd8\u662f\u4ee5 -45<\/code> \u4e3a\u4f8b\uff1a<\/p>\n\n\n\n
[-45]\u539f = 10101101\n[-45]\u53cd = 11010010\n<\/code><\/pre>\n\n\n\n
\u8fc7\u7a0b\u662f\uff1a<\/p>\n\n\n\n
\u539f\u7801\uff1a1 0101101\n\u53cd\u7801\uff1a1 1010010\n<\/code><\/pre>\n\n\n\n
\u7b26\u53f7\u4f4d 1<\/code> \u4e0d\u53d8\uff0c\u540e\u9762\u7684\u6570\u503c\u4f4d 0101101<\/code> \u53d6\u53cd\u4e3a 1010010<\/code>\u3002<\/p>\n\n\n\n
\u53cd\u7801\u4e5f\u6709\u4e24\u4e2a 0\uff1a<\/p>\n\n\n\n
[+0]\u53cd = 00000000\n[-0]\u53cd = 11111111\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5 n \u4f4d\u53cd\u7801\u6574\u6570\u8303\u56f4\u548c\u539f\u7801\u4e00\u6837\uff1a<\/p>\n\n\n\n
-(2\u207f\u207b\u00b9 - 1) \u5230 +(2\u207f\u207b\u00b9 - 1)\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u53cd\u7801\uff1a<\/p>\n\n\n\n
-127 \u5230 +127\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
3. \u8865\u7801\uff1a\u6b63\u6570\u540c\u539f\u7801\uff0c\u8d1f\u6570\u7b49\u4e8e\u53cd\u7801\u52a0 1<\/h3>\n\n\n\n
\u8865\u7801\u662f\u8003\u7814\u4e2d\u6700\u91cd\u8981\u7684\u8868\u793a\u6cd5\uff0c\u56e0\u4e3a\u8ba1\u7b97\u673a\u4e2d\u6574\u6570\u52a0\u51cf\u6cd5\u4e3b\u8981\u7528\u8865\u7801\u6765\u505a\u3002<\/p>\n\n\n\n
\u6b63\u6570\uff1a\u8865\u7801 = \u539f\u7801 = \u53cd\u7801\n\u8d1f\u6570\uff1a\u8865\u7801 = \u53cd\u7801 + 1\n<\/code><\/pre>\n\n\n\n
\u4ee5 -45<\/code> \u4e3a\u4f8b\uff1a<\/p>\n\n\n\n
[-45]\u539f = 10101101\n[-45]\u53cd = 11010010\n[-45]\u8865 = 11010011\n<\/code><\/pre>\n\n\n\n
\u4e5f\u53ef\u4ee5\u76f4\u63a5\u8bb0\uff1a<\/p>\n\n\n\n
\u8d1f\u6570\u8865\u7801 = \u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u8865\u7801\u53ea\u6709\u4e00\u4e2a 0\uff1a<\/p>\n\n\n\n
[+0]\u8865 = 00000000\n[-0]\u8865 \u4e0d\u5b58\u5728\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u8865\u7801\u6bd4\u539f\u7801\u3001\u53cd\u7801\u591a\u8868\u793a\u4e00\u4e2a\u6700\u5c0f\u8d1f\u6570\u3002<\/p>\n\n\n\n
n \u4f4d\u8865\u7801\u6574\u6570\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
-2\u207f\u207b\u00b9 \u5230 +(2\u207f\u207b\u00b9 - 1)\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u8865\u7801\uff1a<\/p>\n\n\n\n
-128 \u5230 +127\n<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u662f\u5e38\u8003\u9677\u9631\uff1a<\/p>\n\n\n\n
10000000\n<\/code><\/pre>\n\n\n\n
\u5728 8 \u4f4d\u8865\u7801\u4e2d\u8868\u793a -128<\/code>\uff0c\u4e0d\u662f -0<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
4. \u79fb\u7801\uff1a\u5728\u771f\u503c\u57fa\u7840\u4e0a\u52a0\u4e00\u4e2a\u504f\u7f6e\u503c<\/h3>\n\n\n\n
\u79fb\u7801\u4e5f\u53eb\u504f\u7f6e\u7801\uff0c\u5e38\u7528\u4e8e\u8868\u793a\u6d6e\u70b9\u6570\u7684\u9636\u7801\u3002\u5b83\u7684\u6838\u5fc3\u516c\u5f0f\u662f\uff1a<\/p>\n\n\n\n
[X]\u79fb = X + \u504f\u7f6e\u503c\n<\/code><\/pre>\n\n\n\n
\u5bf9\u4e8e n \u4f4d\u79fb\u7801\uff0c\u5e38\u7528\u504f\u7f6e\u503c\u662f\uff1a<\/p>\n\n\n\n
2\u207f\u207b\u00b9\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5 n \u4f4d\u79fb\u7801\u6574\u6570\u7684\u8868\u793a\u8303\u56f4\u901a\u5e38\u4e5f\u662f\uff1a<\/p>\n\n\n\n
-2\u207f\u207b\u00b9 \u5230 +(2\u207f\u207b\u00b9 - 1)\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u79fb\u7801\uff0c\u504f\u7f6e\u503c\u662f\uff1a<\/p>\n\n\n\n
2\u2077 = 128\n<\/code><\/pre>\n\n\n\n
\u5982\u679c X = -45\uff1a<\/p>\n\n\n\n
[-45]\u79fb = -45 + 128 = 83\n83 \u7684 8 \u4f4d\u4e8c\u8fdb\u5236 = 01010011\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
[-45]\u79fb = 01010011\n<\/code><\/pre>\n\n\n\n
\u5982\u679c X = +45\uff1a<\/p>\n\n\n\n
[+45]\u79fb = 45 + 128 = 173\n173 \u7684 8 \u4f4d\u4e8c\u8fdb\u5236 = 10101101\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
[+45]\u79fb = 10101101\n<\/code><\/pre>\n\n\n\n
\u79fb\u7801\u6709\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6027\u8d28\uff1a<\/p>\n\n\n\n
\u540c\u4f4d\u6570\u4e0b\uff0c\u79fb\u7801 = \u8865\u7801\u7684\u7b26\u53f7\u4f4d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
[-45]\u8865 = 11010011\n[-45]\u79fb = 01010011\n<\/code><\/pre>\n\n\n\n
\u53ea\u628a\u6700\u9ad8\u4f4d\u4ece 1<\/code> \u6539\u6210 0<\/code>\u3002<\/p>\n\n\n\n
\u518d\u770b\u6b63\u6570\uff1a<\/p>\n\n\n\n
[+45]\u8865 = 00101101\n[+45]\u79fb = 10101101\n<\/code><\/pre>\n\n\n\n
\u53ea\u628a\u6700\u9ad8\u4f4d\u4ece 0<\/code> \u6539\u6210 1<\/code>\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u8865\u7801\u548c\u79fb\u7801\u4e92\u8f6c\u975e\u5e38\u5feb\uff1a<\/p>\n\n\n\n
\u8865\u7801 \u2194 \u79fb\u7801\uff1a\u53ea\u53d6\u53cd\u6700\u9ad8\u4f4d\uff0c\u5176\u4f59\u4f4d\u4e0d\u53d8\n<\/code><\/pre>\n\n\n\n
\u4f46\u6ce8\u610f\uff0c\u79fb\u7801\u6700\u9ad8\u4f4d\u4e0d\u80fd\u7b80\u5355\u7406\u89e3\u4e3a\u4f20\u7edf\u7b26\u53f7\u4f4d<\/strong>\u3002\u5728\u79fb\u7801\u4e2d\uff0c\u6700\u9ad8\u4f4d\u4e3a 1<\/code> \u901a\u5e38\u8868\u793a\u975e\u8d1f\u6570\u533a\u95f4\uff0c\u6700\u9ad8\u4f4d\u4e3a 0<\/code> \u901a\u5e38\u8868\u793a\u8d1f\u6570\u533a\u95f4\uff0c\u8fd9\u548c\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u7684\u7b26\u53f7\u4f4d\u4e60\u60ef\u521a\u597d\u76f8\u53cd\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e09\u3001\u56db\u79cd\u7801\u7684\u5bf9\u6bd4\u8868<\/h2>\n\n\n\n
\u5047\u8bbe n \u4f4d\u673a\u5668\u6570\u8868\u793a\u5b9a\u70b9\u6574\u6570\uff1a<\/p>\n\n\n\n
\u8868\u793a\u6cd5<\/th>\u6b63\u6570<\/th>\u8d1f\u6570<\/th>0 \u7684\u4e2a\u6570<\/th>n \u4f4d\u6574\u6570\u8303\u56f4<\/th>\u4e3b\u8981\u7528\u9014<\/th><\/tr><\/thead>
\u539f\u7801<\/td>\u7b26\u53f7\u4f4d 0\uff0c\u6570\u503c\u4f4d\u4e3a\u7edd\u5bf9\u503c<\/td>\u7b26\u53f7\u4f4d 1\uff0c\u6570\u503c\u4f4d\u4e3a\u7edd\u5bf9\u503c<\/td>2 \u4e2a<\/td>-(2\u207f\u207b\u00b9 – 1) \u5230 +(2\u207f\u207b\u00b9 – 1)<\/td>\u76f4\u89c2\u8868\u793a<\/td><\/tr>
\u53cd\u7801<\/td>\u4e0e\u539f\u7801\u76f8\u540c<\/td>\u539f\u7801\u6570\u503c\u4f4d\u53d6\u53cd<\/td>2 \u4e2a<\/td>-(2\u207f\u207b\u00b9 – 1) \u5230 +(2\u207f\u207b\u00b9 – 1)<\/td>\u8865\u7801\u8fc7\u6e21<\/td><\/tr>
\u8865\u7801<\/td>\u4e0e\u539f\u7801\u76f8\u540c<\/td>\u53cd\u7801\u52a0 1<\/td>1 \u4e2a<\/td>-2\u207f\u207b\u00b9 \u5230 +(2\u207f\u207b\u00b9 – 1)<\/td>\u6574\u6570\u8fd0\u7b97<\/td><\/tr>
\u79fb\u7801<\/td>\u771f\u503c\u52a0\u504f\u7f6e<\/td>\u771f\u503c\u52a0\u504f\u7f6e<\/td>1 \u4e2a<\/td>-2\u207f\u207b\u00b9 \u5230 +(2\u207f\u207b\u00b9 – 1)<\/td>\u6d6e\u70b9\u6570\u9636\u7801<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u6700\u91cd\u8981\u7684\u8003\u70b9\u662f\uff1a<\/p>\n\n\n\n
\u6b63\u6570\uff1a\u539f\u7801 = \u53cd\u7801 = \u8865\u7801\n\u8d1f\u6570\uff1a\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u4e0d\u540c\n\u79fb\u7801\uff1a\u5e38\u7528\u4e8e\u9636\u7801\uff1b\u4e0e\u8865\u7801\u53ea\u5dee\u6700\u9ad8\u4f4d\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u56db\u3001\u4e0d\u540c\u7801\u4e4b\u95f4\u5982\u4f55\u8f6c\u6362<\/h2>\n\n\n\n
1. \u771f\u503c\u8f6c\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801<\/h3>\n\n\n\n
\u4ee5 8 \u4f4d\u8868\u793a -45<\/code> \u4e3a\u4f8b\u3002<\/p>\n\n\n\n
\u5148\u5199\u51fa\u7edd\u5bf9\u503c\uff1a<\/p>\n\n\n\n
45 = 0101101\n<\/code><\/pre>\n\n\n\n
\u56e0\u4e3a\u662f 8 \u4f4d\u673a\u5668\u6570\uff0c\u6240\u4ee5 1 \u4f4d\u7b26\u53f7\u4f4d + 7 \u4f4d\u6570\u503c\u4f4d\u3002<\/p>\n\n\n\n
\u539f\u7801\uff1a<\/p>\n\n\n\n
[-45]\u539f = 10101101\n<\/code><\/pre>\n\n\n\n
\u53cd\u7801\uff1a<\/p>\n\n\n\n
[-45]\u53cd = 11010010\n<\/code><\/pre>\n\n\n\n
\u8865\u7801\uff1a<\/p>\n\n\n\n
[-45]\u8865 = 11010011\n<\/code><\/pre>\n\n\n\n
\u79fb\u7801\uff1a<\/p>\n\n\n\n
[-45]\u79fb = [-45]\u8865 \u7684\u6700\u9ad8\u4f4d\u53d6\u53cd\n        = 01010011\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
2. \u539f\u7801\u8f6c\u53cd\u7801\u3001\u8865\u7801<\/h3>\n\n\n\n
\u5982\u679c\u662f\u6b63\u6570\uff1a<\/p>\n\n\n\n
\u539f\u7801 = \u53cd\u7801 = \u8865\u7801\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u662f\u8d1f\u6570\uff1a<\/p>\n\n\n\n
\u539f\u7801 \u2192 \u53cd\u7801\uff1a\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\n\u53cd\u7801 \u2192 \u8865\u7801\uff1a\u672b\u4f4d\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u4f8b\uff1a<\/p>\n\n\n\n
[-45]\u539f = 10101101\n\n\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\uff1a\n[-45]\u53cd = 11010010\n\n\u53cd\u7801\u52a0 1\uff1a\n[-45]\u8865 = 11010011\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
3. \u8865\u7801\u8f6c\u771f\u503c<\/h3>\n\n\n\n
\u8fd9\u662f\u505a\u9898\u6700\u5e38\u7528\u7684\u8f6c\u6362\u3002<\/p>\n\n\n\n
\u5982\u679c\u8865\u7801\u6700\u9ad8\u4f4d\u662f 0<\/code>\uff0c\u8868\u793a\u975e\u8d1f\u6570\uff0c\u76f4\u63a5\u6309\u666e\u901a\u4e8c\u8fdb\u5236\u8bfb\u3002<\/p>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u8865\u7801\uff1a<\/p>\n\n\n\n
00101101\n<\/code><\/pre>\n\n\n\n
\u6700\u9ad8\u4f4d\u662f 0<\/code>\uff0c\u6240\u4ee5\u662f\u771f\u503c\uff1a<\/p>\n\n\n\n
+45\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u8865\u7801\u6700\u9ad8\u4f4d\u662f 1<\/code>\uff0c\u8868\u793a\u8d1f\u6570\u3002\u6709\u4e24\u79cd\u5e38\u7528\u65b9\u6cd5\u3002<\/p>\n\n\n\n
\u7b2c\u4e00\u79cd\u65b9\u6cd5\uff1a\u53d6\u53cd\u52a0 1 \u6c42\u7edd\u5bf9\u503c\u3002<\/p>\n\n\n\n
\u8865\u7801\uff1a11010011\n\u53d6\u53cd\uff1a00101100\n\u52a0 1\uff1a00101101 = 45\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u771f\u503c\u662f\uff1a<\/p>\n\n\n\n
-45\n<\/code><\/pre>\n\n\n\n
\u7b2c\u4e8c\u79cd\u65b9\u6cd5\uff1a\u76f4\u63a5\u7528\u65e0\u7b26\u53f7\u503c\u51cf\u6a21\u6570\u3002<\/p>\n\n\n\n
8 \u4f4d\u8865\u7801\u7684\u6a21\u6570\u662f\uff1a<\/p>\n\n\n\n
2\u2078 = 256\n<\/code><\/pre>\n\n\n\n
11010011<\/code> \u6309\u65e0\u7b26\u53f7\u6570\u8bfb\u662f\uff1a<\/p>\n\n\n\n
211\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u771f\u503c\u662f\uff1a<\/p>\n\n\n\n
211 - 256 = -45\n<\/code><\/pre>\n\n\n\n
\u8fd9\u4e00\u62db\u505a\u9009\u62e9\u9898\u5f88\u5feb\u3002<\/p>\n\n\n\n
\n\n\n\n
4. \u8865\u7801\u8f6c\u539f\u7801\u3001\u53cd\u7801<\/h3>\n\n\n\n
\u5982\u679c\u8865\u7801\u662f\u6b63\u6570\uff0c\u4e09\u8005\u76f8\u540c\u3002<\/p>\n\n\n\n
\u5982\u679c\u8865\u7801\u662f\u8d1f\u6570\uff1a<\/p>\n\n\n\n
\u8865\u7801 \u2192 \u53cd\u7801\uff1a\u8865\u7801\u51cf 1\n\u53cd\u7801 \u2192 \u539f\u7801\uff1a\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
[-45]\u8865 = 11010011\n<\/code><\/pre>\n\n\n\n
\u5148\u51cf 1\uff1a<\/p>\n\n\n\n
[-45]\u53cd = 11010010\n<\/code><\/pre>\n\n\n\n
\u518d\u6570\u503c\u4f4d\u53d6\u53cd\uff1a<\/p>\n\n\n\n
[-45]\u539f = 10101101\n<\/code><\/pre>\n\n\n\n
\u4e5f\u53ef\u4ee5\u76f4\u63a5\uff1a<\/p>\n\n\n\n
\u8d1f\u6570\u8865\u7801 \u2192 \u539f\u7801\uff1a\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u4f46\u662f\u8981\u6ce8\u610f\u4e00\u4e2a\u7279\u6b8a\u60c5\u51b5\uff1a<\/p>\n\n\n\n
10000000\n<\/code><\/pre>\n\n\n\n
\u5728 8 \u4f4d\u8865\u7801\u4e2d\u8868\u793a -128<\/code>\uff0c\u5b83\u6ca1\u6709\u5bf9\u5e94\u7684 8 \u4f4d\u539f\u7801\u548c\u53cd\u7801\u3002\u56e0\u4e3a 8 \u4f4d\u539f\u7801\u3001\u53cd\u7801\u7684\u8303\u56f4\u53ea\u6709 -127 \u5230 +127<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
5. \u8865\u7801\u548c\u79fb\u7801\u4e92\u8f6c<\/h3>\n\n\n\n
\u540c\u4f4d\u6570\u4e0b\u6700\u7b80\u5355\uff1a<\/p>\n\n\n\n
\u8865\u7801 \u2194 \u79fb\u7801\uff1a\u6700\u9ad8\u4f4d\u53d6\u53cd\uff0c\u5176\u4f59\u4f4d\u4e0d\u53d8\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
[-45]\u8865 = 11010011\n[-45]\u79fb = 01010011\n<\/code><\/pre>\n\n\n\n
[+45]\u8865 = 00101101\n[+45]\u79fb = 10101101\n<\/code><\/pre>\n\n\n\n
\u4ece\u79fb\u7801\u8f6c\u771f\u503c\u4e5f\u53ef\u4ee5\u7528\u504f\u7f6e\u6cd5\u3002<\/p>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u79fb\u7801\uff1a<\/p>\n\n\n\n
01010011\n<\/code><\/pre>\n\n\n\n
\u6309\u65e0\u7b26\u53f7\u6570\u8bfb\uff1a<\/p>\n\n\n\n
83\n<\/code><\/pre>\n\n\n\n
\u504f\u7f6e\u503c\u662f\uff1a<\/p>\n\n\n\n
128\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u771f\u503c\uff1a<\/p>\n\n\n\n
83 - 128 = -45\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e94\u3001\u5b9a\u70b9\u5c0f\u6570\u4e2d\u7684\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801<\/h2>\n\n\n\n
408 \u6709\u65f6\u8fd8\u4f1a\u8003\u5b9a\u70b9\u5c0f\u6570\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n
x = -0.1011\n<\/code><\/pre>\n\n\n\n
\u8fd9\u65f6\u6700\u9ad8\u4f4d\u4ecd\u7136\u662f\u7b26\u53f7\u4f4d\uff0c\u5c0f\u6570\u70b9\u901a\u5e38\u9690\u542b\u5728\u7b26\u53f7\u4f4d\u540e\u9762\uff1a<\/p>\n\n\n\n
1.1011\n<\/code><\/pre>\n\n\n\n
\u539f\u7801\uff1a<\/p>\n\n\n\n
[x]\u539f = 1.1011\n<\/code><\/pre>\n\n\n\n
\u53cd\u7801\uff1a<\/p>\n\n\n\n
[x]\u53cd = 1.0100\n<\/code><\/pre>\n\n\n\n
\u8865\u7801\uff1a<\/p>\n\n\n\n
[x]\u8865 = 1.0101\n<\/code><\/pre>\n\n\n\n
\u89c4\u5219\u548c\u6574\u6570\u7c7b\u4f3c\uff1a<\/p>\n\n\n\n
\u6b63\u6570\uff1a\u539f\u7801 = \u53cd\u7801 = \u8865\u7801\n\u8d1f\u6570\uff1a\u539f\u7801\u6570\u503c\u4f4d\u53d6\u53cd\u5f97\u53cd\u7801\uff0c\u53cd\u7801\u672b\u4f4d\u52a0 1 \u5f97\u8865\u7801\n<\/code><\/pre>\n\n\n\n
\u5b9a\u70b9\u5c0f\u6570\u8865\u7801\u7684\u8303\u56f4\u4e5f\u8981\u6ce8\u610f\u3002\u82e5\u4e00\u5171\u6709 n \u4f4d\uff0c\u5176\u4e2d 1 \u4f4d\u7b26\u53f7\u4f4d\uff0cn-1 \u4f4d\u5c0f\u6570\u4f4d\uff0c\u5219\u8865\u7801\u5c0f\u6570\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
-1 \u5230 +(1 - 2\u207b\u207d\u207f\u207b\u00b9\u207e)\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u5b9a\u70b9\u5c0f\u6570\u8865\u7801\uff1a<\/p>\n\n\n\n
1 \u4f4d\u7b26\u53f7\u4f4d + 7 \u4f4d\u5c0f\u6570\u4f4d\n<\/code><\/pre>\n\n\n\n
\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
-1 \u5230 +(1 - 2\u207b\u2077)\n<\/code><\/pre>\n\n\n\n
\u4e5f\u5c31\u662f\uff1a<\/p>\n\n\n\n
-1 \u5230 +0.9921875\n<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u4e5f\u4f53\u73b0\u51fa\u8865\u7801\u591a\u8868\u793a\u4e86\u4e00\u4e2a\u6700\u5c0f\u8d1f\u6570\u3002<\/p>\n\n\n\n
\n\n\n\n
\u516d\u3001\u4ec0\u4e48\u662f\u53d8\u5f62\u8865\u7801\u3001\u53d8\u5f62\u53cd\u7801<\/h2>\n\n\n\n
\u53d8\u5f62\u8865\u7801\u3001\u53d8\u5f62\u53cd\u7801\u4e3b\u8981\u7528\u4e8e\u5224\u65ad\u52a0\u51cf\u8fd0\u7b97\u662f\u5426\u6ea2\u51fa<\/strong>\u3002\u5b83\u4eec\u7684\u6838\u5fc3\u7279\u5f81\u662f\uff1a<\/p>\n\n\n\n
\u4f7f\u7528\u4e24\u4e2a\u7b26\u53f7\u4f4d\n<\/code><\/pre>\n\n\n\n
\u666e\u901a\u8865\u7801\u53ea\u6709\u4e00\u4e2a\u7b26\u53f7\u4f4d\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n
0.xxxx \u8868\u793a\u6b63\u6570\n1.xxxx \u8868\u793a\u8d1f\u6570\n<\/code><\/pre>\n\n\n\n
\u53d8\u5f62\u8865\u7801\u4f7f\u7528\u4e24\u4e2a\u7b26\u53f7\u4f4d\uff1a<\/p>\n\n\n\n
00.xxxx \u8868\u793a\u6b63\u6570\n11.xxxx \u8868\u793a\u8d1f\u6570\n<\/code><\/pre>\n\n\n\n
\u4e5f\u5c31\u662f\u8bf4\uff0c\u6b63\u5e38\u60c5\u51b5\u4e0b\u4e24\u4e2a\u7b26\u53f7\u4f4d\u5e94\u8be5\u76f8\u540c\u3002<\/p>\n\n\n\n
\u505a\u52a0\u51cf\u8fd0\u7b97\u540e\uff0c\u5982\u679c\u7ed3\u679c\u7684\u4e24\u4e2a\u7b26\u53f7\u4f4d\u4e0d\u540c\uff0c\u5c31\u8bf4\u660e\u53d1\u751f\u6ea2\u51fa\uff1a<\/p>\n\n\n\n
00\uff1a\u6b63\u6570\uff0c\u65e0\u6ea2\u51fa\n11\uff1a\u8d1f\u6570\uff0c\u65e0\u6ea2\u51fa\n01\uff1a\u6b63\u6ea2\u51fa\n10\uff1a\u8d1f\u6ea2\u51fa\n<\/code><\/pre>\n\n\n\n
\u8fd9\u5c31\u662f\u53d8\u5f62\u8865\u7801\u6700\u5e38\u8003\u7684\u5730\u65b9\u3002<\/p>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
\u4e24\u4e2a\u6b63\u6570\u76f8\u52a0\uff0c\u7ed3\u679c\u5374\u51fa\u73b0 01.xxxx\n<\/code><\/pre>\n\n\n\n
\u8bf4\u660e\u53d1\u751f\u6b63\u6ea2\u51fa\u3002<\/p>\n\n\n\n
\u518d\u5982\uff1a<\/p>\n\n\n\n
\u4e24\u4e2a\u8d1f\u6570\u76f8\u52a0\uff0c\u7ed3\u679c\u5374\u51fa\u73b0 10.xxxx\n<\/code><\/pre>\n\n\n\n
\u8bf4\u660e\u53d1\u751f\u8d1f\u6ea2\u51fa\u3002<\/p>\n\n\n\n
\u53d8\u5f62\u53cd\u7801\u4e5f\u7c7b\u4f3c\uff0c\u4e5f\u662f\u901a\u8fc7\u4e24\u4e2a\u7b26\u53f7\u4f4d\u8f85\u52a9\u5224\u65ad\u6ea2\u51fa\u3002\u4e0d\u8fc7\u5728 408 \u4e2d\uff0c\u771f\u6b63\u9ad8\u9891\u7684\u662f\u8865\u7801\u52a0\u51cf\u6cd5\u548c\u53d8\u5f62\u8865\u7801\u6ea2\u51fa\u5224\u65ad<\/strong>\u3002\u53cd\u7801\u66f4\u591a\u7528\u4e8e\u7406\u89e3\u7f16\u7801\u4f53\u7cfb\uff0c\u5b9e\u9645\u8fd0\u7b97\u9898\u8003\u5f97\u5c11\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e03\u3001\u8fd9\u79cd\u9898\u578b\u5e94\u8be5\u600e\u4e48\u505a<\/h2>\n\n\n\n
\u9047\u5230\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u3001\u79fb\u7801\u9898\uff0c\u4e0d\u8981\u76f4\u63a5\u51ed\u611f\u89c9\u8bfb\u4e8c\u8fdb\u5236\u3002\u5148\u6309\u4e0b\u9762\u987a\u5e8f\u5224\u65ad\u3002<\/p>\n\n\n\n
\u7b2c\u4e00\u6b65\uff0c\u770b\u9898\u76ee\u7ed9\u7684\u662f\u201c\u771f\u503c\u201d\u8fd8\u662f\u201c\u673a\u5668\u6570\u201d\u3002<\/p>\n\n\n\n
\u5982\u679c\u9898\u76ee\u7ed9\u7684\u662f\uff1a<\/p>\n\n\n\n
x = -45\nx = -0.1011\n<\/code><\/pre>\n\n\n\n
\u8fd9\u662f\u7ed9\u771f\u503c\uff0c\u8981\u8f6c\u673a\u5668\u6570\u3002<\/p>\n\n\n\n
\u5982\u679c\u9898\u76ee\u7ed9\u7684\u662f\uff1a<\/p>\n\n\n\n
[x]\u8865 = 11010011\n[x]\u79fb = 01010011\n<\/code><\/pre>\n\n\n\n
\u8fd9\u662f\u7ed9\u673a\u5668\u6570\uff0c\u8981\u6309\u6307\u5b9a\u7f16\u7801\u8fd8\u539f\u771f\u503c\uff0c\u6216\u8005\u8f6c\u6210\u5176\u4ed6\u7f16\u7801\u3002<\/p>\n\n\n\n
\u7b2c\u4e8c\u6b65\uff0c\u770b\u4f4d\u6570\u3002<\/p>\n\n\n\n
\u4f8b\u5982\u9898\u76ee\u8bf4\u201c\u7528 8 \u4f4d\u8868\u793a\u201d\uff0c\u5c31\u5fc5\u987b\u660e\u786e\uff1a<\/p>\n\n\n\n
8 \u4f4d\u5305\u62ec\u7b26\u53f7\u4f4d\n<\/code><\/pre>\n\n\n\n
-45<\/code> \u7684\u7edd\u5bf9\u503c 45<\/code> \u8981\u5199\u6210 7 \u4f4d\u6570\u503c\u4f4d\uff1a<\/p>\n\n\n\n
45 = 0101101\n<\/code><\/pre>\n\n\n\n
\u4e0d\u662f\u968f\u4fbf\u5199\u6210 101101<\/code>\u3002<\/p>\n\n\n\n
\u7b2c\u4e09\u6b65\uff0c\u770b\u7f16\u7801\u7c7b\u578b\u3002<\/p>\n\n\n\n
\u5982\u679c\u662f\u539f\u7801\uff0c\u8d1f\u6570\u5c31\u662f\uff1a<\/p>\n\n\n\n
\u7b26\u53f7\u4f4d 1 + \u7edd\u5bf9\u503c\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u662f\u53cd\u7801\uff0c\u8d1f\u6570\u5c31\u662f\uff1a<\/p>\n\n\n\n
\u539f\u7801\u6570\u503c\u4f4d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u662f\u8865\u7801\uff0c\u8d1f\u6570\u5c31\u662f\uff1a<\/p>\n\n\n\n
\u53cd\u7801\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u662f\u79fb\u7801\uff0c\u4f18\u5148\u7528\uff1a<\/p>\n\n\n\n
\u79fb\u7801 = \u771f\u503c + \u504f\u7f6e\u503c\n<\/code><\/pre>\n\n\n\n
\u6216\u8005\u5728\u540c\u4f4d\u6570\u4e0b\u7528\uff1a<\/p>\n\n\n\n
\u79fb\u7801 = \u8865\u7801\u6700\u9ad8\u4f4d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u7b2c\u56db\u6b65\uff0c\u770b\u662f\u5426\u6709\u7279\u6b8a\u503c\u3002<\/p>\n\n\n\n
\u6700\u5e38\u89c1\u7279\u6b8a\u503c\u662f\uff1a<\/p>\n\n\n\n
10000000\n<\/code><\/pre>\n\n\n\n
\u5728 8 \u4f4d\u8865\u7801\u4e2d\uff0c\u5b83\u8868\u793a\uff1a<\/p>\n\n\n\n
-128\n<\/code><\/pre>\n\n\n\n
\u4e0d\u662f -0<\/code>\u3002<\/p>\n\n\n\n
\u800c\u5728 8 \u4f4d\u539f\u7801\u4e2d\uff1a<\/p>\n\n\n\n
10000000\n<\/code><\/pre>\n\n\n\n
\u8868\u793a\uff1a<\/p>\n\n\n\n
-0\n<\/code><\/pre>\n\n\n\n
\u5728 8 \u4f4d\u53cd\u7801\u4e2d\uff1a<\/p>\n\n\n\n
11111111\n<\/code><\/pre>\n\n\n\n
\u8868\u793a\uff1a<\/p>\n\n\n\n
-0\n<\/code><\/pre>\n\n\n\n
\u8fd9\u4e9b\u662f\u9009\u62e9\u9898\u5e38\u6316\u7684\u5751\u3002<\/p>\n\n\n\n
\n\n\n\n
\u516b\u3001\u5178\u578b\u4f8b\u9898\uff1a8 \u4f4d\u673a\u5668\u6570\u8f6c\u6362<\/h2>\n\n\n\n
\u9898\u76ee\uff1a\u6c42 x = -45<\/code> \u7684 8 \u4f4d\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u3001\u79fb\u7801\u3002<\/p>\n\n\n\n
\u5148\u5199\u7edd\u5bf9\u503c\uff1a<\/p>\n\n\n\n
45 = 0101101\n<\/code><\/pre>\n\n\n\n
\u539f\u7801\uff1a<\/p>\n\n\n\n
[-45]\u539f = 10101101\n<\/code><\/pre>\n\n\n\n
\u53cd\u7801\uff1a<\/p>\n\n\n\n
[-45]\u53cd = 11010010\n<\/code><\/pre>\n\n\n\n
\u8865\u7801\uff1a<\/p>\n\n\n\n
[-45]\u8865 = 11010011\n<\/code><\/pre>\n\n\n\n
\u79fb\u7801\uff1a<\/p>\n\n\n\n
[-45]\u79fb = 01010011\n<\/code><\/pre>\n\n\n\n
\u6700\u7ec8\u7b54\u6848\uff1a<\/p>\n\n\n\n
\u539f\u7801\uff1a10101101\n\u53cd\u7801\uff1a11010010\n\u8865\u7801\uff1a11010011\n\u79fb\u7801\uff1a01010011\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e5d\u3001\u5178\u578b\u4f8b\u9898\uff1a\u5df2\u77e5\u8865\u7801\u6c42\u771f\u503c<\/h2>\n\n\n\n
\u9898\u76ee\uff1a\u5df2\u77e5 8 \u4f4d\u8865\u7801\uff1a<\/p>\n\n\n\n
[x]\u8865 = 11101010\n<\/code><\/pre>\n\n\n\n
\u6c42\u771f\u503c x\u3002<\/p>\n\n\n\n
\u6700\u9ad8\u4f4d\u662f 1<\/code>\uff0c\u8bf4\u660e x \u662f\u8d1f\u6570\u3002<\/p>\n\n\n\n
\u65b9\u6cd5\u4e00\uff0c\u53d6\u53cd\u52a0 1\uff1a<\/p>\n\n\n\n
\u8865\u7801\uff1a11101010\n\u53d6\u53cd\uff1a00010101\n\u52a0 1\uff1a00010110\n<\/code><\/pre>\n\n\n\n
00010110<\/code> \u662f 22\uff0c\u6240\u4ee5\uff1a<\/p>\n\n\n\n
x = -22\n<\/code><\/pre>\n\n\n\n
\u65b9\u6cd5\u4e8c\uff0c\u6309\u65e0\u7b26\u53f7\u6570\u51cf\u6a21\u6570\uff1a<\/p>\n\n\n\n
11101010 = 234\n234 - 256 = -22\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\uff1a<\/p>\n\n\n\n
x = -22\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u5341\u3001\u6700\u5bb9\u6613\u9519\u7684\u5730\u65b9<\/h2>\n\n\n\n
\u6700\u5bb9\u6613\u9519\u7684\u7b2c\u4e00\u70b9\u662f\u628a\u201c\u673a\u5668\u6570\u201d\u548c\u201c\u771f\u503c\u201d\u6df7\u5728\u4e00\u8d77\u300211010011<\/code> \u672c\u8eab\u4e0d\u80fd\u76f4\u63a5\u8bf4\u662f -45<\/code>\uff0c\u5fc5\u987b\u5148\u77e5\u9053\u5b83\u662f\u8865\u7801\u3002\u5982\u679c\u5b83\u662f\u65e0\u7b26\u53f7\u6570\uff0c\u5c31\u662f 211<\/code>\uff1b\u5982\u679c\u5b83\u662f\u8865\u7801\uff0c\u624d\u662f -45<\/code>\u3002<\/p>\n\n\n\n
\u7b2c\u4e8c\u70b9\u662f\u5fd8\u8bb0\u4f4d\u6570\u30028 \u4f4d\u300116 \u4f4d\u3001n \u4f4d\u4f1a\u5f71\u54cd\u8865\u7801\u7684\u6a21\u6570\uff0c\u4e5f\u4f1a\u5f71\u54cd\u79fb\u7801\u7684\u504f\u7f6e\u503c\u30028 \u4f4d\u8865\u7801\u8d1f\u6570\u53ef\u4ee5\u7528\u201c\u65e0\u7b26\u53f7\u503c – 256\u201d\uff0c16 \u4f4d\u8865\u7801\u8d1f\u6570\u5219\u662f\u201c\u65e0\u7b26\u53f7\u503c – 65536\u201d\u3002<\/p>\n\n\n\n
\u7b2c\u4e09\u70b9\u662f\u628a\u79fb\u7801\u5f53\u6210\u666e\u901a\u7b26\u53f7\u4f4d\u7f16\u7801\u3002\u79fb\u7801\u7684\u6700\u9ad8\u4f4d\u4e0d\u662f\u4f20\u7edf\u610f\u4e49\u4e0a\u7684\u7b26\u53f7\u4f4d\u3002\u540c\u4f4d\u6570\u4e0b\uff0c\u79fb\u7801\u548c\u8865\u7801\u53ea\u662f\u6700\u9ad8\u4f4d\u76f8\u53cd\u3002<\/p>\n\n\n\n
\u7b2c\u56db\u70b9\u662f\u628a 10000000<\/code> \u8bef\u5224\u6210 -0<\/code>\u3002\u5728 8 \u4f4d\u8865\u7801\u4e2d\u5b83\u662f -128<\/code>\uff1b\u5728 8 \u4f4d\u539f\u7801\u4e2d\u5b83\u624d\u662f -0<\/code>\u3002<\/p>\n\n\n\n
\u7b2c\u4e94\u70b9\u662f\u5fd8\u8bb0\u6b63\u6570\u89c4\u5219\u3002\u6b63\u6570\u7684\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u5b8c\u5168\u4e00\u6837\uff1b\u53ea\u6709\u8d1f\u6570\u624d\u9700\u8981\u53d6\u53cd\u3001\u52a0\u4e00\u3002<\/p>\n\n\n\n
\n\n\n\n
\u5341\u4e00\u3001\u5feb\u901f\u8bb0\u5fc6<\/h2>\n\n\n\n
\u53ef\u4ee5\u8fd9\u6837\u8bb0\uff1a<\/p>\n\n\n\n
\u539f\u7801\uff1a\u7b26\u53f7 + \u7edd\u5bf9\u503c\n\u53cd\u7801\uff1a\u8d1f\u6570\u539f\u7801\u6570\u503c\u4f4d\u53d6\u53cd\n\u8865\u7801\uff1a\u8d1f\u6570\u53cd\u7801\u52a0 1\n\u79fb\u7801\uff1a\u8865\u7801\u7b26\u53f7\u4f4d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u518d\u538b\u7f29\u6210\u4e00\u53e5\uff1a<\/p>\n\n\n\n
\u6b63\u6570\u4e09\u7801\u76f8\u540c\uff0c\u8d1f\u6570\u53cd\u7801\u53d6\u53cd\uff0c\u8865\u7801\u518d\u52a0\u4e00\uff0c\u79fb\u7801\u7ffb\u6700\u9ad8\u4f4d\u3002\n<\/code><\/pre>\n\n\n\n
\u5176\u4e2d\u201c\u4e09\u7801\u201d\u901a\u5e38\u6307\uff1a<\/p>\n\n\n\n
\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\n<\/code><\/pre>\n\n\n\n
\u505a\u9898\u65f6\u4f18\u5148\u6293\u4f4f\uff1a<\/p>\n\n\n\n
\u7ed9\u771f\u503c \u2192 \u5148\u5199\u7edd\u5bf9\u503c \u2192 \u518d\u6309\u7f16\u7801\u89c4\u5219\u8f6c\u6362\n\u7ed9\u673a\u5668\u6570 \u2192 \u5148\u770b\u7f16\u7801\u7c7b\u578b \u2192 \u518d\u8fd8\u539f\u771f\u503c\n\u8865\u7801\u8d1f\u6570 \u2192 \u53d6\u53cd\u52a0 1 \u6c42\u7edd\u5bf9\u503c\uff0c\u6216\u8005\u65e0\u7b26\u53f7\u503c\u51cf\u6a21\u6570\n\u79fb\u7801 \u2194 \u8865\u7801 \u2192 \u6700\u9ad8\u4f4d\u53d6\u53cd\n\u53d8\u5f62\u8865\u7801 \u2192 \u770b\u4e24\u4e2a\u7b26\u53f7\u4f4d\u662f\u5426\u76f8\u540c\n<\/code><\/pre>\n\n\n\n
\u8fd9\u90e8\u5206\u5728 408 \u91cc\u4e0d\u96be\uff0c\u4f46\u975e\u5e38\u5bb9\u6613\u56e0\u4e3a\u201c\u4f4d\u6570\u3001\u7b26\u53f7\u4f4d\u3001\u7279\u6b8a\u503c\u3001\u79fb\u7801\u6700\u9ad8\u4f4d\u201d\u4e22\u5206\u3002\u6838\u5fc3\u662f\u6bcf\u9053\u9898\u5148\u95ee\u81ea\u5df1\u4e09\u4e2a\u95ee\u9898\uff1a\u51e0\u4f4d\uff1f\u4ec0\u4e48\u7801\uff1f\u8981\u6c42\u771f\u503c\u8fd8\u662f\u673a\u5668\u6570\uff1f<\/strong><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u56fe\u4e2d 04\uff5e09 \u7684\u7b54\u6848\u662f\uff1a<\/p>\n\n\n\n
04\uff1aB\n05\uff1aB\n06\uff1aD\n07\uff1aC\n08\uff1aD\n09\uff1aC\n<\/code><\/pre>\n\n\n\n
\u4e0b\u9762\u9010\u9898\u89e3\u6790\u3002<\/p>\n\n\n\n
04. \u5bf9\u771f\u503c 0 \u8868\u793a\u5f62\u5f0f\u552f\u4e00\u7684\u673a\u5668\u6570\u662f\uff1f<\/h2>\n\n\n\n
\u9898\u76ee\u95ee\u7684\u662f\uff1a\u54ea\u79cd\u673a\u5668\u6570\u8868\u793a\u6cd5\u4e2d\uff0c\u771f\u503c 0 \u53ea\u6709\u4e00\u79cd\u8868\u793a\u5f62\u5f0f\u3002<\/p>\n\n\n\n
\u539f\u7801\u4e2d\u6709\u4e24\u4e2a 0\uff1a<\/p>\n\n\n\n
[+0]\u539f = 00000000\n[-0]\u539f = 10000000\n<\/code><\/pre>\n\n\n\n
\u53cd\u7801\u4e2d\u4e5f\u6709\u4e24\u4e2a 0\uff1a<\/p>\n\n\n\n
[+0]\u53cd = 00000000\n[-0]\u53cd = 11111111\n<\/code><\/pre>\n\n\n\n
\u8865\u7801\u4e2d\u53ea\u6709\u4e00\u4e2a 0\uff1a<\/p>\n\n\n\n
[0]\u8865 = 00000000\n<\/code><\/pre>\n\n\n\n
\u79fb\u7801\u4e2d 0 \u4e5f\u53ea\u6709\u4e00\u4e2a\u8868\u793a\u3002\u4f8b\u5982 8 \u4f4d\u79fb\u7801\u504f\u7f6e\u503c\u4e3a 128\uff1a<\/p>\n\n\n\n
[0]\u79fb = 0 + 128 = 128 = 10000000\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u771f\u503c 0 \u8868\u793a\u5f62\u5f0f\u552f\u4e00\u7684\u662f\uff1a<\/p>\n\n\n\n
\u8865\u7801\u548c\u79fb\u7801\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u9009\uff1a<\/p>\n\n\n\n
04\uff1aB\n<\/code><\/pre>\n\n\n\n
\u8fd9\u9898\u7684\u6613\u9519\u70b9\u662f\u628a\u201c\u673a\u5668\u6570\u7f16\u7801\u4e2a\u6570\u201d\u548c\u201c\u771f\u503c\u8868\u793a\u4e2a\u6570\u201d\u6df7\u6dc6\u3002\u539f\u7801\u3001\u53cd\u7801\u4e0d\u662f\u4e0d\u80fd\u8868\u793a 0\uff0c\u800c\u662f\u6709 +0<\/code> \u548c -0<\/code> \u4e24\u79cd\u8868\u793a\u3002<\/p>\n\n\n\n
\n\n\n\n
05. \u82e5 [X]\u8865 = 1.1101010\uff0c\u5219 [X]\u539f = \uff1f<\/h2>\n\n\n\n
\u9898\u76ee\u7ed9\u7684\u662f\u8865\u7801\uff1a<\/p>\n\n\n\n
[X]\u8865 = 1.1101010\n<\/code><\/pre>\n\n\n\n
\u6700\u9ad8\u4f4d\u662f 1<\/code>\uff0c\u8bf4\u660e X \u662f\u8d1f\u6570\u3002<\/p>\n\n\n\n
\u8d1f\u6570\u7531\u8865\u7801\u6c42\u539f\u7801\uff0c\u5e38\u7528\u65b9\u6cd5\u662f\uff1a<\/p>\n\n\n\n
\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u4e5f\u53ef\u4ee5\u7406\u89e3\u4e3a\u5148\u7531\u8865\u7801\u51cf 1 \u5f97\u53cd\u7801\uff0c\u518d\u7531\u53cd\u7801\u53d6\u53cd\u5f97\u539f\u7801\u3002<\/p>\n\n\n\n
\u76f4\u63a5\u505a\uff1a<\/p>\n\n\n\n
\u8865\u7801\uff1a1.1101010\n\u6570\u503c\u4f4d\u53d6\u53cd\uff1a0010101\n\u672b\u4f4d\u52a0 1 \uff1a0010110\n<\/code><\/pre>\n\n\n\n
\u7b26\u53f7\u4f4d\u4ecd\u7136\u662f 1<\/code>\uff0c\u6240\u4ee5\uff1a<\/p>\n\n\n\n
[X]\u539f = 1.0010110\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u9009\uff1a<\/p>\n\n\n\n
05\uff1aB\n<\/code><\/pre>\n\n\n\n
\u6ce8\u610f\u8fd9\u91cc\u7684\u5c0f\u6570\u70b9\u53ea\u662f\u5b9a\u70b9\u5c0f\u6570\u7684\u9690\u542b\u4f4d\u7f6e\uff0c\u4e0d\u5f71\u54cd\u201c\u8d1f\u6570\u8865\u7801\u8f6c\u539f\u7801\u201d\u7684\u89c4\u5219\u3002\u7b26\u53f7\u4f4d\u5728\u5c0f\u6570\u70b9\u5de6\u8fb9\uff0c\u6570\u503c\u4f4d\u5728\u5c0f\u6570\u70b9\u53f3\u8fb9\u3002<\/p>\n\n\n\n
\n\n\n\n
06. \u82e5 X \u4e3a\u8d1f\u6570\uff0c\u5219\u7531 [X]\u8865 \u6c42 [-X]\u8865 \u662f\u5c06\u4ec0\u4e48\uff1f<\/h2>\n\n\n\n
\u9898\u76ee\u95ee\u7684\u662f\uff1a\u5df2\u77e5\u4e00\u4e2a\u8d1f\u6570 X \u7684\u8865\u7801\uff0c\u600e\u6837\u5f97\u5230\u5b83\u7684\u76f8\u53cd\u6570 -X<\/code> \u7684\u8865\u7801\u3002<\/p>\n\n\n\n
\u8865\u7801\u4e2d\u6c42\u76f8\u53cd\u6570\u7684\u901a\u7528\u65b9\u6cd5\u662f\uff1a<\/p>\n\n\n\n
\u8fde\u540c\u7b26\u53f7\u4f4d\u4e00\u8d77\u53d6\u53cd\uff0c\u672b\u4f4d\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u4e5f\u5c31\u662f\u201c\u6309\u4f4d\u53d6\u53cd\u52a0 1\u201d\u3002<\/p>\n\n\n\n
\u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
X = -45\n[X]\u8865 = 11010011\n<\/code><\/pre>\n\n\n\n
\u6c42 [-X]\u8865<\/code>\uff0c\u4e5f\u5c31\u662f\u6c42 +45<\/code> \u7684\u8865\u7801\uff1a<\/p>\n\n\n\n
11010011 \u53d6\u53cd = 00101100\n\u672b\u4f4d\u52a0 1      = 00101101\n<\/code><\/pre>\n\n\n\n
\u800c\uff1a<\/p>\n\n\n\n
[+45]\u8865 = 00101101\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u89c4\u5219\u6b63\u786e\u3002<\/p>\n\n\n\n
\u7b54\u6848\u9009\uff1a<\/p>\n\n\n\n
06\uff1aD\n<\/code><\/pre>\n\n\n\n
\u8fd9\u9898\u5bb9\u6613\u8bef\u9009 C\u3002C \u8bf4\u201c\u9664\u7b26\u53f7\u4f4d\u5916\uff0c\u5404\u4f4d\u53d8\u53cd\uff0c\u672b\u4f4d\u52a0 1\u201d\uff0c\u8fd9\u662f\u628a\u7b26\u53f7\u4f4d\u6392\u9664\u6389\u4e86\uff0c\u4e0d\u662f\u8865\u7801\u6c42\u76f8\u53cd\u6570\u7684\u89c4\u5219\u3002\u8865\u7801\u6c42\u76f8\u53cd\u6570\u5fc5\u987b\u8fde\u540c\u7b26\u53f7\u4f4d\u4e00\u8d77\u53c2\u4e0e\u53d6\u53cd\u3002<\/p>\n\n\n\n
\n\n\n\n
07. 8 \u4f4d\u539f\u7801\u80fd\u8868\u793a\u7684\u4e0d\u540c\u6570\u636e\u6709\u51e0\u4e2a\uff1f<\/h2>\n\n\n\n
8 \u4f4d\u539f\u7801\u4e00\u5171\u6709\uff1a<\/p>\n\n\n\n
2\u2078 = 256\n<\/code><\/pre>\n\n\n\n
\u79cd\u673a\u5668\u7f16\u7801\u3002<\/p>\n\n\n\n
\u4f46\u662f\u539f\u7801\u4e2d\u6709\u4e24\u4e2a\u7f16\u7801\u90fd\u8868\u793a 0\uff1a<\/p>\n\n\n\n
00000000 \u8868\u793a +0\n10000000 \u8868\u793a -0\n<\/code><\/pre>\n\n\n\n
\u5b83\u4eec\u7684\u771f\u503c\u90fd\u662f 0\uff0c\u6240\u4ee5\u201c\u4e0d\u540c\u6570\u636e\u201d\u8981\u5c11\u7b97\u4e00\u4e2a\u3002<\/p>\n\n\n\n
\u56e0\u6b64 8 \u4f4d\u539f\u7801\u80fd\u8868\u793a\u7684\u4e0d\u540c\u6570\u636e\u4e2a\u6570\u662f\uff1a<\/p>\n\n\n\n
256 - 1 = 255\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u9009\uff1a<\/p>\n\n\n\n
07\uff1aC\n<\/code><\/pre>\n\n\n\n
\u8fd9\u9898\u7684\u5173\u952e\u8bcd\u662f\u201c\u4e0d\u540c\u6570\u636e\u201d\uff0c\u4e0d\u662f\u201c\u4e0d\u540c\u7f16\u7801\u201d\u3002\u5982\u679c\u95ee\u201c8 \u4f4d\u539f\u7801\u673a\u5668\u6570\u6709\u591a\u5c11\u79cd\u7f16\u7801\u201d\uff0c\u7b54\u6848\u624d\u662f 256\uff1b\u4f46\u95ee\u201c\u4e0d\u540c\u6570\u636e\u201d\u6216\u201c\u4e0d\u540c\u771f\u503c\u201d\uff0c\u7b54\u6848\u662f 255\u3002<\/p>\n\n\n\n
\n\n\n\n
08. \u4e00\u4e2a n + 1 \u4f4d\u6574\u6570 x \u539f\u7801\u7684\u6570\u503c\u8303\u56f4\u662f\uff1f<\/h2>\n\n\n\n
n + 1<\/code> \u4f4d\u539f\u7801\u6574\u6570\uff0c\u8868\u793a\uff1a<\/p>\n\n\n\n
1 \u4f4d\u7b26\u53f7\u4f4d + n \u4f4d\u6570\u503c\u4f4d\n<\/code><\/pre>\n\n\n\n
n \u4f4d\u6570\u503c\u4f4d\u80fd\u8868\u793a\u7684\u6700\u5927\u7edd\u5bf9\u503c\u662f\uff1a<\/p>\n\n\n\n
2\u207f - 1\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u539f\u7801\u6574\u6570\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
-(2\u207f - 1) \u5230 +(2\u207f - 1)\n<\/code><\/pre>\n\n\n\n
\u4e5f\u5c31\u662f\uff1a<\/p>\n\n\n\n
-2\u207f + 1 \u2264 x \u2264 2\u207f - 1\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u9009\uff1a<\/p>\n\n\n\n
08\uff1aD\n<\/code><\/pre>\n\n\n\n
\u539f\u7801\u3001\u53cd\u7801\u7684\u6574\u6570\u8303\u56f4\u90fd\u662f\uff1a<\/p>\n\n\n\n
-2\u207f + 1 \u2264 x \u2264 2\u207f - 1\n<\/code><\/pre>\n\n\n\n
\u8865\u7801\u7684\u6574\u6570\u8303\u56f4\u624d\u662f\uff1a<\/p>\n\n\n\n
-2\u207f \u2264 x \u2264 2\u207f - 1\n<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u9898\u76ee\u8bf4\u7684\u662f n + 1<\/code> \u4f4d\uff0c\u5176\u4e2d 1 \u4f4d\u7b26\u53f7\u4f4d\uff0c\u6240\u4ee5\u6570\u503c\u4f4d\u662f n \u4f4d\u3002\u4e0d\u8981\u628a n \u5f53\u6210\u603b\u4f4d\u6570\u3002<\/p>\n\n\n\n
\n\n\n\n
09. \u5b9a\u70b9\u6574\u6570\u4e3a 64 \u4f4d\uff0c\u542b 1 \u4f4d\u7b26\u53f7\u4f4d\uff0c\u91c7\u7528\u8865\u7801\u8868\u793a\u7684\u7edd\u5bf9\u503c\u6700\u5927\u7684\u8d1f\u6570\u662f\uff1f<\/h2>\n\n\n\n
64 \u4f4d\u5b9a\u70b9\u6574\u6570\uff0c\u542b 1 \u4f4d\u7b26\u53f7\u4f4d\uff0c\u8bf4\u660e\u603b\u4f4d\u6570\u5c31\u662f 64 \u4f4d\u3002<\/p>\n\n\n\n
\u8865\u7801\u6574\u6570\u7684\u8868\u793a\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
-2\u2076\u00b3 \u5230 2\u2076\u00b3 - 1\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u8865\u7801\u80fd\u8868\u793a\u7684\u6700\u5c0f\u8d1f\u6570\u662f\uff1a<\/p>\n\n\n\n
-2\u2076\u00b3\n<\/code><\/pre>\n\n\n\n
\u5b83\u7684\u7edd\u5bf9\u503c\u6700\u5927\uff1a<\/p>\n\n\n\n
|-2\u2076\u00b3| = 2\u2076\u00b3\n<\/code><\/pre>\n\n\n\n
\u56e0\u6b64\u7b54\u6848\u9009\uff1a<\/p>\n\n\n\n
09\uff1aC\n<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u8981\u6ce8\u610f\u9898\u5e72\u8bf4\u7684\u662f\u201c\u7edd\u5bf9\u503c\u6700\u5927\u7684\u8d1f\u6570\u201d\uff0c\u4e0d\u662f\u201c\u6700\u5927\u7684\u8d1f\u6570\u201d\u3002\u5982\u679c\u53ea\u8bf4\u201c\u6700\u5927\u7684\u8d1f\u6570\u201d\uff0c\u6570\u5b66\u4e0a\u6700\u5927\u8d1f\u6570\u5e94\u8be5\u662f\u6700\u63a5\u8fd1 0 \u7684\u8d1f\u6570\uff0c\u6bd4\u5982 -1<\/code>\uff1b\u4f46\u201c\u7edd\u5bf9\u503c\u6700\u5927\u7684\u8d1f\u6570\u201d\u5c31\u662f\u6700\u5c0f\u7684\u90a3\u4e2a\u8865\u7801\u8d1f\u6570\uff0c\u5373 -2\u2076\u00b3<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
\u8fd9\u51e0\u9898\u7684\u7edf\u4e00\u505a\u6cd5<\/h2>\n\n\n\n
\u8fd9\u4e00\u7ec4\u9898\u57fa\u672c\u90fd\u56f4\u7ed5\u4e00\u4e2a\u4e3b\u7ebf\uff1a\u4e0d\u540c\u7f16\u7801\u65b9\u5f0f\u7684 0\u3001\u8303\u56f4\u3001\u76f8\u53cd\u6570\u3001\u8d1f\u6570\u8f6c\u6362\u3002<\/strong><\/p>\n\n\n\n
\u53ef\u4ee5\u76f4\u63a5\u8bb0\u4e0b\u9762\u51e0\u6761\uff1a<\/p>\n\n\n\n
\u539f\u7801\uff1a\u6709 +0 \u548c -0\uff0c\u8303\u56f4\u4e3a -2\u207f + 1 \u5230 2\u207f - 1\n\u53cd\u7801\uff1a\u6709 +0 \u548c -0\uff0c\u8303\u56f4\u4e3a -2\u207f + 1 \u5230 2\u207f - 1\n\u8865\u7801\uff1a0 \u552f\u4e00\uff0c\u8303\u56f4\u4e3a -2\u207f \u5230 2\u207f - 1\n\u79fb\u7801\uff1a0 \u552f\u4e00\uff0c\u5e38\u7528\u4e8e\u9636\u7801\uff0c\u548c\u8865\u7801\u53ea\u5dee\u6700\u9ad8\u4f4d\n<\/code><\/pre>\n\n\n\n
\u5176\u4e2d\u8fd9\u91cc\u7684 n<\/code> \u662f\u6570\u503c\u4f4d\u4f4d\u6570\u3002\u5982\u679c\u603b\u4f4d\u6570\u662f n + 1<\/code> \u4f4d\uff0c\u90a3\u4e48\u5c31\u662f 1 \u4f4d\u7b26\u53f7\u4f4d + n \u4f4d\u6570\u503c\u4f4d\u3002<\/p>\n\n\n\n
\u518d\u8bb0\u4e24\u4e2a\u8f6c\u6362\u89c4\u5219\uff1a<\/p>\n\n\n\n
\u8d1f\u6570\u8865\u7801\u8f6c\u539f\u7801\uff1a\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\u52a0 1\n\u8865\u7801\u6c42\u76f8\u53cd\u6570\uff1a\u8fde\u540c\u7b26\u53f7\u4f4d\u4e00\u8d77\u53d6\u53cd\uff0c\u672b\u4f4d\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u8fd9\u51e0\u9053\u9898\u7684\u672c\u8d28\u662f\uff1a<\/p>\n\n\n\n
04 \u8003 0 \u7684\u552f\u4e00\u6027\n05 \u8003\u8d1f\u6570\u8865\u7801\u8f6c\u539f\u7801\n06 \u8003\u8865\u7801\u6c42\u76f8\u53cd\u6570\n07 \u8003\u539f\u7801\u7684 +0 \u548c -0\n08 \u8003 n+1 \u4f4d\u539f\u7801\u8303\u56f4\n09 \u8003 64 \u4f4d\u8865\u7801\u6700\u5c0f\u8d1f\u6570\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u5728\u6c42\u8865\u7801\u5230\u539f\u7801\u7684\u8f6c\u6362\uff0c\u6216\u8005\u662f\u6c42\u8865\u7801\u7684\u76f8\u53cd\u6570\u7684\u8865\u7801\uff0c\u662f\u901a\u8fc7\u7b26\u53f7\u4f4d\u4e5f\u53d6\u53cd\uff0c\u7136\u540e\u672b\u5c3e\u52a0\u4e00\u6765\u89e3\u51b3\u7684\uff0c\u6211\u4eec\u5df2\u77e5\u539f\u7801\u5230\u8865\u7801\u662f\u53d6\u53cd\u518d\u52a0\u4e00\uff0c\u90a3\u4e48\u6839\u636e\u9006\u63a8\u5e94\u8be5\u662f\u5148\u51cf\u4e00\u518d\u53d6\u53cd\uff0c\u4e3a\u4ec0\u4e48\u662f\u76f4\u63a5\u53d6\u53cd\u52a0\u4e00\uff1f<\/p>\n\n\n\n
\u8fd9\u91cc\u8981\u628a\u4e24\u4e2a\u64cd\u4f5c\u4e25\u683c\u5206\u5f00\uff1a<\/p>\n\n\n\n
\u2460 \u8d1f\u6570\u7684\u8865\u7801 \u2192 \u539f\u7801\n\u2461 \u5df2\u77e5 [X]\u8865\uff0c\u6c42 [-X]\u8865\n<\/code><\/pre>\n\n\n\n
\u8fd9\u4e24\u4e2a\u4e0d\u662f\u540c\u4e00\u4ef6\u4e8b\uff0c\u6240\u4ee5\u201c\u7b26\u53f7\u4f4d\u662f\u5426\u53c2\u4e0e\u53d6\u53cd\u201d\u4e0d\u4e00\u6837\u3002<\/p>\n\n\n\n
\u4e00\u3001\u8865\u7801\u8f6c\u539f\u7801\uff1a\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u53ea\u5904\u7406\u6570\u503c\u4f4d<\/h2>\n\n\n\n
\u5982\u679c\u5df2\u77e5\uff1a<\/p>\n\n\n\n
[X]\u8865 = 1.1101010\n<\/code><\/pre>\n\n\n\n
\u6700\u9ad8\u4f4d\u662f 1<\/code>\uff0c\u8bf4\u660e X \u662f\u8d1f\u6570\u3002\u6c42 [X]\u539f<\/code> \u65f6\uff0c\u7b26\u53f7\u4f4d\u4ecd\u7136\u5e94\u8be5\u662f 1<\/code>\uff0c\u56e0\u4e3a X \u8fd8\u662f\u8d1f\u6570\u3002\u8fd9\u91cc\u53ea\u662f\u5728\u6062\u590d\u5b83\u7684\u7edd\u5bf9\u503c\u90e8\u5206\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u8865\u7801\u8f6c\u539f\u7801\u7684\u6807\u51c6\u9006\u8fc7\u7a0b\u786e\u5b9e\u662f\uff1a<\/p>\n\n\n\n
\u8865\u7801 \u2192 \u53cd\u7801\uff1a\u672b\u4f4d\u51cf 1\n\u53cd\u7801 \u2192 \u539f\u7801\uff1a\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u5bf9\u9898\u76ee\uff1a<\/p>\n\n\n\n
[X]\u8865 = 1.1101010\n<\/code><\/pre>\n\n\n\n
\u53ea\u770b\u6570\u503c\u4f4d\uff1a<\/p>\n\n\n\n
1101010\n<\/code><\/pre>\n\n\n\n
\u5148\u51cf 1\uff1a<\/p>\n\n\n\n
1101010 - 1 = 1101001\n<\/code><\/pre>\n\n\n\n
\u518d\u53d6\u53cd\uff1a<\/p>\n\n\n\n
1101001 \u53d6\u53cd = 0010110\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
[X]\u539f = 1.0010110\n<\/code><\/pre>\n\n\n\n
\u8fd9\u5c31\u662f\u4f60\u8bf4\u7684\u201c\u9006\u63a8\u201d\uff1a\u5148\u51cf\u4e00\uff0c\u518d\u53d6\u53cd<\/strong>\u3002\u8fd9\u4e2a\u601d\u8def\u5b8c\u5168\u6b63\u786e\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e8c\u3001\u90a3\u4e3a\u4ec0\u4e48\u4e5f\u53ef\u4ee5\u201c\u53d6\u53cd\u52a0\u4e00\u201d\uff1f<\/h2>\n\n\n\n
\u56e0\u4e3a\u5728\u56fa\u5b9a\u957f\u5ea6\u4e8c\u8fdb\u5236\u4e2d\uff0c\u53d6\u53cd\u52a0\u4e00\u8fd9\u4e2a\u64cd\u4f5c\u662f\u81ea\u53cd\u7684<\/strong>\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5bf9\u540c\u6837\u957f\u5ea6\u7684\u4e8c\u8fdb\u5236\u6570\uff1a<\/p>\n\n\n\n
\u5148\u51cf 1 \u518d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u548c\uff1a<\/p>\n\n\n\n
\u5148\u53d6\u53cd\u518d\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u7ed3\u679c\u76f8\u540c\u3002<\/p>\n\n\n\n
\u4ecd\u7136\u7528\u6570\u503c\u4f4d 1101010<\/code> \u6765\u770b\u3002<\/p>\n\n\n\n
\u65b9\u6cd5\u4e00\uff1a\u5148\u51cf\u4e00\uff0c\u518d\u53d6\u53cd\uff1a<\/p>\n\n\n\n
1101010 - 1 = 1101001\n1101001 \u53d6\u53cd = 0010110\n<\/code><\/pre>\n\n\n\n
\u65b9\u6cd5\u4e8c\uff1a\u5148\u53d6\u53cd\uff0c\u518d\u52a0\u4e00\uff1a<\/p>\n\n\n\n
1101010 \u53d6\u53cd = 0010101\n0010101 + 1 = 0010110\n<\/code><\/pre>\n\n\n\n
\u7ed3\u679c\u4e00\u6837\uff0c\u90fd\u662f\uff1a<\/p>\n\n\n\n
0010110\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u5bf9\u4e8e\u201c\u8d1f\u6570\u8865\u7801\u8f6c\u539f\u7801\u201d\uff0c\u53ef\u4ee5\u8bf4\uff1a<\/p>\n\n\n\n
\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u4e5f\u53ef\u4ee5\u8bf4\uff1a<\/p>\n\n\n\n
\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u51cf 1 \u540e\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u4e8c\u8005\u7b49\u4ef7\u3002<\/p>\n\n\n\n
\u4f46\u8fd9\u91cc\u5fc5\u987b\u5f3a\u8c03\uff1a\u8865\u7801\u8f6c\u539f\u7801\u65f6\uff0c\u7b26\u53f7\u4f4d\u4e0d\u80fd\u53c2\u4e0e\u53d6\u53cd\u3002<\/strong><\/p>\n\n\n\n
\u5982\u679c\u628a\u7b26\u53f7\u4f4d\u4e5f\u53d6\u53cd\uff0c\u5c31\u4e0d\u662f\u5728\u6c42\u539f\u7801\u4e86\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e09\u3001\u8865\u7801\u6c42\u76f8\u53cd\u6570\u7684\u8865\u7801\uff1a\u7b26\u53f7\u4f4d\u4e5f\u53c2\u4e0e\u53d6\u53cd<\/h2>\n\n\n\n
\u53e6\u4e00\u7c7b\u9898\u662f\uff1a<\/p>\n\n\n\n
\u5df2\u77e5 [X]\u8865\uff0c\u6c42 [-X]\u8865\n<\/code><\/pre>\n\n\n\n
\u8fd9\u4e0d\u662f\u201c\u8865\u7801\u8f6c\u539f\u7801\u201d\uff0c\u800c\u662f\u5728\u8865\u7801\u4f53\u7cfb\u4e2d\u6c42\u76f8\u53cd\u6570\u3002<\/p>\n\n\n\n
\u8865\u7801\u4f53\u7cfb\u4e0b\u6709\u4e00\u4e2a\u7edf\u4e00\u89c4\u5219\uff1a<\/p>\n\n\n\n
[-X]\u8865 = [X]\u8865 \u8fde\u540c\u7b26\u53f7\u4f4d\u4e00\u8d77\u53d6\u53cd\uff0c\u518d\u672b\u4f4d\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
X = -45\n[X]\u8865 = 11010011\n<\/code><\/pre>\n\n\n\n
\u6c42 [-X]\u8865<\/code>\uff0c\u4e5f\u5c31\u662f\u6c42 +45<\/code> \u7684\u8865\u7801\u3002<\/p>\n\n\n\n
\u8fde\u540c\u7b26\u53f7\u4f4d\u4e00\u8d77\u53d6\u53cd\uff1a<\/p>\n\n\n\n
11010011 \u53d6\u53cd = 00101100\n<\/code><\/pre>\n\n\n\n
\u672b\u4f4d\u52a0 1\uff1a<\/p>\n\n\n\n
00101100 + 1 = 00101101\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
[-X]\u8865 = 00101101\n<\/code><\/pre>\n\n\n\n
\u800c 00101101<\/code> \u6b63\u597d\u5c31\u662f +45<\/code> \u7684\u8865\u7801\u3002<\/p>\n\n\n\n
\u8fd9\u91cc\u7b26\u53f7\u4f4d\u5fc5\u987b\u53c2\u4e0e\u53d6\u53cd\uff0c\u56e0\u4e3a\u7ed3\u679c\u7684\u7b26\u53f7\u786e\u5b9e\u53d8\u4e86\uff1a\u539f\u6765 X \u662f\u8d1f\u6570\uff0c-X<\/code> \u662f\u6b63\u6570\u3002<\/p>\n\n\n\n
\n\n\n\n
\u56db\u3001\u5173\u952e\u533a\u522b\uff1a\u4e00\u4e2a\u662f\u201c\u6362\u8868\u793a\u201d\uff0c\u4e00\u4e2a\u662f\u201c\u53d8\u6570\u503c\u201d<\/h2>\n\n\n\n
\u8fd9\u90e8\u5206\u6700\u5bb9\u6613\u6df7\uff0c\u662f\u56e0\u4e3a\u4e24\u4e2a\u64cd\u4f5c\u90fd\u51fa\u73b0\u4e86\u201c\u53d6\u53cd\u52a0\u4e00\u201d\u3002<\/p>\n\n\n\n
\u672c\u8d28\u533a\u522b\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\u64cd\u4f5c<\/th>\u771f\u503c\u662f\u5426\u6539\u53d8<\/th>\u7b26\u53f7\u662f\u5426\u6539\u53d8<\/th>\u7b26\u53f7\u4f4d\u662f\u5426\u53c2\u4e0e<\/th><\/tr><\/thead>
[X]\u8865 \u2192 [X]\u539f<\/code><\/td>\u4e0d\u6539\u53d8\uff0c\u8fd8\u662f X<\/td>\u4e0d\u6539\u53d8<\/td>\u4e0d\u53c2\u4e0e\uff0c\u7b26\u53f7\u4f4d\u4fdd\u7559<\/td><\/tr>
[X]\u8865 \u2192 [-X]\u8865<\/code><\/td>\u6539\u53d8\uff0c\u53d8\u6210 -X<\/td>\u901a\u5e38\u6539\u53d8<\/td>\u53c2\u4e0e\uff0c\u6574\u4e2a\u4f4d\u4e32\u53d6\u53cd\u52a0\u4e00<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u6bd4\u5982\uff1a<\/p>\n\n\n\n
[X]\u8865 = 11010011\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u95ee [X]\u539f<\/code>\uff0c\u8fd9\u662f\u540c\u4e00\u4e2a\u6570 X\uff0c\u53ea\u662f\u6362\u4e00\u79cd\u8868\u793a\u6cd5\uff1a<\/p>\n\n\n\n
[X]\u8865 = 11010011\n[X]\u539f = 10101101\n<\/code><\/pre>\n\n\n\n
\u771f\u503c\u4ecd\u7136\u662f\uff1a<\/p>\n\n\n\n
X = -45\n<\/code><\/pre>\n\n\n\n
\u4f46\u5982\u679c\u95ee [-X]\u8865<\/code>\uff0c\u90a3\u5c31\u662f\u6c42\u76f8\u53cd\u6570\uff1a<\/p>\n\n\n\n
[X]\u8865  = 11010011\n[-X]\u8865 = 00101101\n<\/code><\/pre>\n\n\n\n
\u771f\u503c\u53d8\u6210\uff1a<\/p>\n\n\n\n
-X = +45\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u8fd9\u4e24\u4e2a\u7ed3\u679c\u5f53\u7136\u4e0d\u540c\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e94\u3001\u7528\u4e00\u53e5\u8bdd\u603b\u7ed3<\/h2>\n\n\n\n
\u8d1f\u6570\u8865\u7801\u8f6c\u539f\u7801\uff1a<\/p>\n\n\n\n
\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u53d6\u53cd\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u6216\u8005\uff1a<\/p>\n\n\n\n
\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u51cf 1 \u540e\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u8fd9\u4e24\u4e2a\u7b49\u4ef7\u3002<\/p>\n\n\n\n
\u8865\u7801\u6c42\u76f8\u53cd\u6570\u7684\u8865\u7801\uff1a<\/p>\n\n\n\n
\u8fde\u540c\u7b26\u53f7\u4f4d\u4e00\u8d77\u53d6\u53cd\uff0c\u672b\u4f4d\u52a0 1\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u5224\u65ad\u65f6\u5148\u95ee\u81ea\u5df1\uff1a\u9898\u76ee\u662f\u8ba9\u201c\u6362\u7f16\u7801\u8868\u793a\u201d\uff0c\u8fd8\u662f\u8ba9\u201c\u6c42\u76f8\u53cd\u6570\u201d\uff1f<\/p>\n\n\n\n
\u6362\u7f16\u7801\uff1a\u7b26\u53f7\u4f4d\u4e0d\u53d8\n\u6c42\u76f8\u53cd\u6570\uff1a\u7b26\u53f7\u4f4d\u53c2\u4e0e\u8fd0\u7b97\n<\/code><\/pre>\n\n\n\n
\u8fd9\u662f\u8fd9\u7c7b\u9898\u7684\u6838\u5fc3\u5206\u754c\u7ebf\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5148\u7ed9\u7b54\u6848\uff1a<\/p>\n\n\n\n
\u9898\u53f7<\/th>\u7b54\u6848<\/th><\/tr><\/thead>
11<\/td>C<\/td><\/tr>
12<\/td>C<\/td><\/tr>
13<\/td>D\uff08\u4e25\u683c\u8bf4\uff1b\u82e5\u7b54\u6848\u7ed9 B\uff0c\u662f\u628a\u201c\u6b63\u6570\u201d\u4e0d\u4e25\u8c28\u5730\u5f53\u6210\u201c\u975e\u8d1f\u6570\u201d\uff09<\/td><\/tr>
14<\/td>B<\/td><\/tr>
15<\/td>C<\/td><\/tr>
16<\/td>A<\/td><\/tr>
17<\/td>D<\/td><\/tr>
18<\/td>B<\/td><\/tr>
19<\/td>D<\/td><\/tr>
20<\/td>C<\/td><\/tr>
21<\/td>B<\/td><\/tr>
22<\/td>A<\/td><\/tr>
23<\/td>A<\/td><\/tr>
24<\/td>D<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u4e0b\u9762\u9010\u9898\u8bb2\u3002<\/p>\n\n\n\n
11 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\u7ed9\uff1a<\/p>\n\n\n\n
[x]\u8865 = 1, x\u2081x\u2082x\u2083x\u2084x\u2085x\u2086<\/code><\/p>\n\n\n\n
\u8fd9\u662f 7 \u4f4d\u8865\u7801\uff0c\u6700\u9ad8\u4f4d\u4e3a\u7b26\u53f7\u4f4d 1\uff0c\u8bf4\u660e x \u662f\u8d1f\u6570\u3002\u5bf9 7 \u4f4d\u8865\u7801\u6574\u6570\u6765\u8bf4\uff0c\u7b26\u53f7\u4f4d\u6743\u503c\u4e3a -2\u2076 = -64<\/code>\uff0c\u5176\u4f59 6 \u4f4d\u6743\u503c\u4f9d\u6b21\u4e3a\uff1a<\/p>\n\n\n\n
x\u2081:32, x\u2082:16, x\u2083:8, x\u2084:4, x\u2085:2, x\u2086:1<\/code><\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
x = -64 + x\u2081\u00d732 + x\u2082\u00d716 + x\u2083\u00d78 + x\u2084\u00d74 + x\u2085\u00d72 + x\u2086<\/code><\/p>\n\n\n\n
\u8981\u6c42\uff1a<\/p>\n\n\n\n
x > -32<\/code><\/p>\n\n\n\n
\u5373\uff1a<\/p>\n\n\n\n
-64 + \u540e6\u4f4d\u7684\u65e0\u7b26\u53f7\u503c > -32<\/code><\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
\u540e6\u4f4d\u7684\u65e0\u7b26\u53f7\u503c > 32<\/code><\/p>\n\n\n\n
\u540e 6 \u4f4d\u8981\u5927\u4e8e 32\uff0c\u5fc5\u987b\u6ee1\u8db3\uff1a<\/p>\n\n\n\n
x\u2081 = 1<\/code>\uff0c\u5e76\u4e14 x\u2082 ~ x\u2086<\/code> \u4e2d\u81f3\u5c11\u6709\u4e00\u4f4d\u4e3a 1\u3002<\/p>\n\n\n\n
\u5982\u679c\u53ea\u662f x\u2081=1<\/code> \u4e14\u540e\u9762\u5168 0\uff0c\u5219\u540e 6 \u4f4d\u4e3a 100000 = 32<\/code>\uff0c\u6b64\u65f6 x = -32\uff0c\u4e0d\u6ee1\u8db3 x > -32<\/code>\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u9009 C\u3002<\/p>\n\n\n\n
12 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\u7ed9\uff1a<\/p>\n\n\n\n
[x]\u8865 = 1, x\u2081x\u2082x\u2083x\u2084x\u2085<\/code><\/p>\n\n\n\n
\u8fd9\u662f 6 \u4f4d\u8865\u7801\uff0c\u6700\u9ad8\u4f4d\u7b26\u53f7\u4f4d\u4e3a 1\uff0c\u8bf4\u660e x \u662f\u8d1f\u6570\u30026 \u4f4d\u8865\u7801\u7b26\u53f7\u4f4d\u6743\u503c\u4e3a\uff1a<\/p>\n\n\n\n
-2\u2075 = -32<\/code><\/p>\n\n\n\n
\u5176\u4f59 5 \u4f4d\u6743\u503c\u4e3a\uff1a<\/p>\n\n\n\n
x\u2081:16, x\u2082:8, x\u2083:4, x\u2084:2, x\u2085:1<\/code><\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
x = -32 + \u540e5\u4f4d\u7684\u65e0\u7b26\u53f7\u503c<\/code><\/p>\n\n\n\n
\u8981\u6c42\uff1a<\/p>\n\n\n\n
x < -16<\/code><\/p>\n\n\n\n
\u5373\uff1a<\/p>\n\n\n\n
-32 + \u540e5\u4f4d\u7684\u65e0\u7b26\u53f7\u503c < -16<\/code><\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
\u540e5\u4f4d\u7684\u65e0\u7b26\u53f7\u503c < 16<\/code><\/p>\n\n\n\n
\u540e 5 \u4f4d\u5c0f\u4e8e 16\uff0c\u8bf4\u660e\u6700\u9ad8\u7684\u6570\u503c\u4f4d x\u2081<\/code> \u5fc5\u987b\u4e3a 0\uff0c\u540e\u9762\u7684 x\u2082 ~ x\u2085<\/code> \u4efb\u610f\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u9009 C\u3002<\/p>\n\n\n\n
\u8fd9\u7c7b\u9898\u7684\u6838\u5fc3\u89c4\u5f8b\u662f\uff1a\u8865\u7801\u8d1f\u6570\u4e0d\u9700\u8981\u5148\u8f6c\u539f\u7801\uff0c\u53ef\u4ee5\u76f4\u63a5\u7528\u6743\u503c\u7b97\u3002n \u4f4d\u8865\u7801\u6700\u9ad8\u4f4d\u6743\u503c\u662f\u8d1f\u7684\uff0c\u5176\u4f59\u4f4d\u6743\u503c\u6b63\u5e38\u4e3a\u6b63\u3002<\/p>\n\n\n\n
13 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\u8bf4\uff1a<\/p>\n\n\n\n
x \u4e3a\u771f\u503c\uff0cx* \u4e3a\u5176\u7edd\u5bf9\u503c\uff0c\u6ee1\u8db3\uff1a<\/p>\n\n\n\n
[-x*]\u8865 = [-x]\u8865<\/code><\/p>\n\n\n\n
\u95ee\u5f53\u4e14\u4ec5\u5f53\u4ec0\u4e48\u6761\u4ef6\u6210\u7acb\u3002<\/p>\n\n\n\n
\u56e0\u4e3a x* = |x|<\/code>\uff0c\u6240\u4ee5\u5de6\u8fb9\u4ee3\u8868\uff1a<\/p>\n\n\n\n
[-x*]\u8865 = [-|x|]\u8865<\/code><\/p>\n\n\n\n
\u53f3\u8fb9\u4ee3\u8868\uff1a<\/p>\n\n\n\n
[-x]\u8865<\/code><\/p>\n\n\n\n
\u6bd4\u8f83\u771f\u503c\u5373\u53ef\u3002<\/p>\n\n\n\n
\u5982\u679c x > 0<\/code>\uff0c\u90a3\u4e48\uff1a<\/p>\n\n\n\n
|x| = x<\/code><\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
-|x| = -x<\/code><\/p>\n\n\n\n
\u4e24\u8fb9\u76f8\u7b49\u3002<\/p>\n\n\n\n
\u5982\u679c x = 0<\/code>\uff0c\u90a3\u4e48\uff1a<\/p>\n\n\n\n
|x| = 0<\/code><\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
-|x| = -0 = 0<\/code><\/p>\n\n\n\n
\u53f3\u8fb9\u4e5f\u662f\uff1a<\/p>\n\n\n\n
-x = 0<\/code><\/p>\n\n\n\n
\u4e24\u8fb9\u4e5f\u76f8\u7b49\u3002<\/p>\n\n\n\n
\u5982\u679c x < 0<\/code>\uff0c\u5047\u8bbe x = -a\uff0c\u5219 a > 0\uff1a<\/p>\n\n\n\n
|x| = a<\/code><\/p>\n\n\n\n
\u5de6\u8fb9\u771f\u503c\uff1a<\/p>\n\n\n\n
-|x| = -a<\/code><\/p>\n\n\n\n
\u53f3\u8fb9\u771f\u503c\uff1a<\/p>\n\n\n\n
-x = a<\/code><\/p>\n\n\n\n
\u663e\u7136\u4e0d\u76f8\u7b49\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u4e25\u683c\u6761\u4ef6\u5e94\u4e3a\uff1a<\/p>\n\n\n\n
x \u2265 0<\/code><\/p>\n\n\n\n
\u9009\u9879\u4e2d\u6ca1\u6709\u201cx \u4e3a\u975e\u8d1f\u6570\u201d\uff0c\u6240\u4ee5\u4e25\u683c\u6765\u8bf4\u9009 D\uff1a\u4ee5\u4e0a\u8bf4\u6cd5\u90fd\u4e0d\u5bf9\u3002<\/p>\n\n\n\n
\u8fd9\u91cc\u5bb9\u6613\u9519\u5728\u770b\u5230\u201c\u6b63\u6570\u201d\u5c31\u9009 B\uff0c\u4f46 0 \u4e5f\u6ee1\u8db3\u7b49\u5f0f\u3002\u5982\u679c\u53c2\u8003\u7b54\u6848\u7ed9 B\uff0c\u8bf4\u660e\u5b83\u5ffd\u7565\u4e86 0\uff0c\u8fd9\u79cd\u7b54\u6848\u4e0d\u591f\u4e25\u8c28\u3002<\/p>\n\n\n\n
14 \u9898<\/h2>\n\n\n\n
\u5341\u8fdb\u5236\u6570\u4e3a -66<\/code>\uff0c\u7528 8 \u4f4d\u8865\u7801\u8868\u793a\u3002<\/p>\n\n\n\n
\u5148\u5199\u51fa +66\uff1a<\/p>\n\n\n\n
66 = 0100 0010<\/code><\/p>\n\n\n\n
\u8d1f\u6570\u8865\u7801\u6c42\u6cd5\uff1a\u6b63\u6570\u6e90\u7801\u6309\u4f4d\u53d6\u53cd\u518d\u52a0 1\u3002<\/p>\n\n\n\n
\u53d6\u53cd\uff1a<\/p>\n\n\n\n
1011 1101<\/code><\/p>\n\n\n\n
\u52a0 1\uff1a<\/p>\n\n\n\n
1011 1110<\/code><\/p>\n\n\n\n
\u4e8c\u8fdb\u5236 1011 1110<\/code> \u8f6c\u5341\u516d\u8fdb\u5236\uff1a<\/p>\n\n\n\n
BEH<\/code><\/p>\n\n\n\n
\u56e0\u6b64\u9009 B\u3002<\/p>\n\n\n\n
A \u9009\u9879 C2H = 1100 0010<\/code> \u662f -66 \u7684\u539f\u7801\uff0c\u4e0d\u662f\u8865\u7801\u3002<\/p>\n\n\n\n
15 \u9898<\/h2>\n\n\n\n
\u5bc4\u5b58\u5668\u5185\u5bb9\u4e3a\uff1a<\/p>\n\n\n\n
9BH<\/code><\/p>\n\n\n\n
\u8f6c\u6210\u4e8c\u8fdb\u5236\uff1a<\/p>\n\n\n\n
1001 1011<\/code><\/p>\n\n\n\n
\u6700\u9ad8\u4f4d\u4e3a 1\uff0c\u8bf4\u660e\u8fd9\u662f\u8865\u7801\u8d1f\u6570\u3002<\/p>\n\n\n\n
\u65b9\u6cd5\u4e00\uff1a\u76f4\u63a5\u6309 8 \u4f4d\u8865\u7801\u8ba1\u7b97\uff1a<\/p>\n\n\n\n
0x9B = 155<\/code><\/p>\n\n\n\n
\u8865\u7801\u771f\u503c\uff1a<\/p>\n\n\n\n
155 - 256 = -101<\/code><\/p>\n\n\n\n
\u6240\u4ee5\u5bf9\u5e94\u5341\u8fdb\u5236\u6570\u4e3a -101<\/code>\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u9009 C\u3002<\/p>\n\n\n\n
\u65b9\u6cd5\u4e8c\uff1a\u6c42\u5176\u7edd\u5bf9\u503c\u3002<\/p>\n\n\n\n
1001 1011<\/code> \u6309\u4f4d\u53d6\u53cd\uff1a<\/p>\n\n\n\n
0110 0100<\/code><\/p>\n\n\n\n
\u52a0 1\uff1a<\/p>\n\n\n\n
0110 0101 = 101<\/code><\/p>\n\n\n\n
\u6240\u4ee5\u539f\u6570\u4e3a -101<\/code>\u3002<\/p>\n\n\n\n
16 \u9898<\/h2>\n\n\n\n
\u5bc4\u5b58\u5668\u5185\u5bb9\u4e3a\uff1a<\/p>\n\n\n\n
10000000<\/code><\/p>\n\n\n\n
\u5982\u679c\u5b83\u8868\u793a -0<\/code>\uff0c\u95ee\u662f\u54ea\u79cd\u7801\u3002<\/p>\n\n\n\n
\u539f\u7801\u4e2d\uff1a<\/p>\n\n\n\n
+0 = 00000000<\/code><\/p>\n\n\n\n
-0 = 10000000<\/code><\/p>\n\n\n\n
\u53cd\u7801\u4e2d\uff1a<\/p>\n\n\n\n
+0 = 00000000<\/code><\/p>\n\n\n\n
-0 = 11111111<\/code><\/p>\n\n\n\n
\u8865\u7801\u4e2d 0 \u7684\u8868\u793a\u552f\u4e00\uff0c\u6ca1\u6709 -0<\/code>\u3002<\/p>\n\n\n\n
\u56e0\u6b64 10000000<\/code> \u8868\u793a -0<\/code> \u65f6\uff0c\u662f\u539f\u7801\u3002<\/p>\n\n\n\n
\u9009 A\u3002<\/p>\n\n\n\n
17 \u9898<\/h2>\n\n\n\n
\u5bc4\u5b58\u5668\u5185\u5bb9\u4e3a\uff1a<\/p>\n\n\n\n
11111111<\/code><\/p>\n\n\n\n
\u5982\u679c\u5b83\u7b49\u4e8e +127<\/code>\uff0c\u95ee\u662f\u54ea\u79cd\u7801\u3002<\/p>\n\n\n\n
8 \u4f4d\u79fb\u7801\u901a\u5e38\u91c7\u7528\u504f\u7f6e\u503c 128\uff1a<\/p>\n\n\n\n
[x]\u79fb = x + 128<\/code><\/p>\n\n\n\n
\u5982\u679c x = +127\uff0c\u5219\uff1a<\/p>\n\n\n\n
[+127]\u79fb = 127 + 128 = 255<\/code><\/p>\n\n\n\n
255 \u7684 8 \u4f4d\u4e8c\u8fdb\u5236\u5c31\u662f\uff1a<\/p>\n\n\n\n
11111111<\/code><\/p>\n\n\n\n
\u56e0\u6b64\u9009 D\uff0c\u79fb\u7801\u3002<\/p>\n\n\n\n
\u987a\u4fbf\u5bf9\u6bd4\uff1a<\/p>\n\n\n\n
\u539f\u7801 11111111<\/code> \u8868\u793a -127\uff1b<\/p>\n\n\n\n
\u53cd\u7801 11111111<\/code> \u8868\u793a -0\uff1b<\/p>\n\n\n\n
\u8865\u7801 11111111<\/code> \u8868\u793a -1\u3002<\/p>\n\n\n\n
18 \u9898<\/h2>\n\n\n\n
\u5bc4\u5b58\u5668\u5185\u5bb9\u4e3a\uff1a<\/p>\n\n\n\n
11111111<\/code><\/p>\n\n\n\n
\u5982\u679c\u5b83\u7b49\u4e8e -1<\/code>\uff0c\u95ee\u662f\u54ea\u79cd\u7801\u3002<\/p>\n\n\n\n
8 \u4f4d\u8865\u7801\u4e2d\uff1a<\/p>\n\n\n\n
-1<\/code> \u7684\u8865\u7801\u4e3a\uff1a<\/p>\n\n\n\n
11111111<\/code><\/p>\n\n\n\n
\u56e0\u4e3a\uff1a<\/p>\n\n\n\n
+1 = 00000001<\/code><\/p>\n\n\n\n
\u53d6\u53cd\uff1a<\/p>\n\n\n\n
11111110<\/code><\/p>\n\n\n\n
\u52a0 1\uff1a<\/p>\n\n\n\n
11111111<\/code><\/p>\n\n\n\n
\u56e0\u6b64\u9009 B\uff0c\u8865\u7801\u3002<\/p>\n\n\n\n
19 \u9898<\/h2>\n\n\n\n
\u5bc4\u5b58\u5668\u5185\u5bb9\u4e3a\uff1a<\/p>\n\n\n\n
00000000<\/code><\/p>\n\n\n\n
\u5982\u679c\u5b83\u7b49\u4e8e -128<\/code>\uff0c\u95ee\u662f\u54ea\u79cd\u7801\u3002<\/p>\n\n\n\n
8 \u4f4d\u79fb\u7801\u504f\u7f6e\u503c\u4e3a 128\uff1a<\/p>\n\n\n\n
[x]\u79fb = x + 128<\/code><\/p>\n\n\n\n
\u82e5 x = -128\uff0c\u5219\uff1a<\/p>\n\n\n\n
[-128]\u79fb = -128 + 128 = 0<\/code><\/p>\n\n\n\n
\u5373\uff1a<\/p>\n\n\n\n
00000000<\/code><\/p>\n\n\n\n
\u56e0\u6b64\u9009 D\uff0c\u79fb\u7801\u3002<\/p>\n\n\n\n
\u8865\u7801\u4e2d 00000000<\/code> \u8868\u793a 0\uff0c\u4e0d\u8868\u793a -128\u30028 \u4f4d\u8865\u7801\u7684 -128 \u662f 10000000<\/code>\u3002<\/p>\n\n\n\n
20 \u9898<\/h2>\n\n\n\n
\u771f\u503c\u4e3a\u4e8c\u8fdb\u5236\u5b9a\u70b9\u5c0f\u6570\uff1a<\/p>\n\n\n\n
-0.1101<\/code><\/p>\n\n\n\n
\u673a\u5668\u8868\u793a\u4e3a\uff1a<\/p>\n\n\n\n
1.0010<\/code><\/p>\n\n\n\n
\u5224\u65ad\u662f\u54ea\u79cd\u7801\u3002<\/p>\n\n\n\n
\u5148\u770b\u539f\u7801\u3002<\/p>\n\n\n\n
\u8d1f\u6570\u539f\u7801\uff1a\u7b26\u53f7\u4f4d\u4e3a 1\uff0c\u6570\u503c\u4f4d\u4fdd\u6301\u7edd\u5bf9\u503c\u4e0d\u53d8\u3002<\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
[-0.1101]\u539f = 1.1101<\/code><\/p>\n\n\n\n
\u53cd\u7801\uff1a\u7b26\u53f7\u4f4d\u4e0d\u53d8\uff0c\u6570\u503c\u4f4d\u6309\u4f4d\u53d6\u53cd\u3002<\/p>\n\n\n\n
1.1101<\/code> \u7684\u6570\u503c\u4f4d 1101<\/code> \u53d6\u53cd\u4e3a 0010<\/code><\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
[-0.1101]\u53cd = 1.0010<\/code><\/p>\n\n\n\n
\u6b63\u597d\u7b49\u4e8e\u9898\u76ee\u7ed9\u7684\u673a\u5668\u8868\u793a\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u9009 C\uff0c\u53cd\u7801\u3002<\/p>\n\n\n\n
\u5982\u679c\u662f\u8865\u7801\uff0c\u8fd8\u8981\u5728\u53cd\u7801\u57fa\u7840\u4e0a\u672b\u4f4d\u52a0 1\uff1a<\/p>\n\n\n\n
1.0010 + 0.0001 = 1.0011<\/code><\/p>\n\n\n\n
\u6240\u4ee5\u4e0d\u662f\u8865\u7801\u3002<\/p>\n\n\n\n
21 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\u95ee\uff1a\u4e0b\u5217\u4e3a 8 \u4f4d\u79fb\u7801\u673a\u5668\u6570 [x]\u79fb<\/code>\uff0c\u6c42 [-x]\u79fb<\/code> \u65f6\uff0c\u54ea\u4e2a\u4f1a\u53d1\u751f\u6ea2\u51fa\u3002<\/p>\n\n\n\n
8 \u4f4d\u79fb\u7801\u504f\u7f6e\u503c\u4e3a 128\uff0c\u771f\u503c\u8303\u56f4\u4ecd\u7136\u662f\uff1a<\/p>\n\n\n\n
-128 ~ +127<\/code><\/p>\n\n\n\n
\u79fb\u7801\u5173\u7cfb\u4e3a\uff1a<\/p>\n\n\n\n
[x]\u79fb = x + 128<\/code><\/p>\n\n\n\n
\u9010\u4e2a\u770b\u3002<\/p>\n\n\n\n
A\uff1a11111111<\/code><\/p>\n\n\n\n
\u65e0\u7b26\u53f7\u503c\u4e3a 255\uff1a<\/p>\n\n\n\n
x = 255 - 128 = 127<\/code><\/p>\n\n\n\n
\u6c42 -x = -127<\/code>\uff0c\u53ef\u8868\u793a\uff0c\u4e0d\u6ea2\u51fa\u3002<\/p>\n\n\n\n
B\uff1a00000000<\/code><\/p>\n\n\n\n
\u65e0\u7b26\u53f7\u503c\u4e3a 0\uff1a<\/p>\n\n\n\n
x = 0 - 128 = -128<\/code><\/p>\n\n\n\n
\u6c42 -x = +128<\/code><\/p>\n\n\n\n
\u4f46 8 \u4f4d\u5e26\u7b26\u53f7\u6574\u6570\u8303\u56f4\u6700\u5927\u53ea\u80fd\u5230 +127\uff0c\u6240\u4ee5 +128 \u4e0d\u53ef\u8868\u793a\uff0c\u6ea2\u51fa\u3002<\/p>\n\n\n\n
C\uff1a10000000<\/code><\/p>\n\n\n\n
\u65e0\u7b26\u53f7\u503c\u4e3a 128\uff1a<\/p>\n\n\n\n
x = 128 - 128 = 0<\/code><\/p>\n\n\n\n
\u6c42 -x = 0<\/code>\uff0c\u4e0d\u6ea2\u51fa\u3002<\/p>\n\n\n\n
D\uff1a01111111<\/code><\/p>\n\n\n\n
\u65e0\u7b26\u53f7\u503c\u4e3a 127\uff1a<\/p>\n\n\n\n
x = 127 - 128 = -1<\/code><\/p>\n\n\n\n
\u6c42 -x = +1<\/code>\uff0c\u4e0d\u6ea2\u51fa\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u9009 B\u3002<\/p>\n\n\n\n
\u8fd9\u9898\u548c\u8865\u7801\u91cc\u7684\u7279\u6b8a\u503c\u4e00\u6837\uff1a\u6700\u5c0f\u8d1f\u6570\u53d6\u76f8\u53cd\u6570\u4f1a\u6ea2\u51fa\u3002<\/p>\n\n\n\n
22 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\u8bf4\uff1a\u4e00\u4e2a 8 \u4f4d\u4e8c\u8fdb\u5236\u6574\u6570\u7531 2 \u4e2a 0 \u548c 6 \u4e2a 1 \u7ec4\u6210\uff0c\u91c7\u7528\u8865\u7801\u6216\u79fb\u7801\u8868\u793a\uff0c\u5224\u65ad\u54ea\u9879\u6b63\u786e\u3002<\/p>\n\n\n\n
\u5148\u770b\u79fb\u7801\u3002<\/p>\n\n\n\n
A \u9009\u9879<\/h3>\n\n\n\n
\u82e5\u91c7\u7528\u79fb\u7801\u8868\u793a\uff0c\u504f\u7f6e\u503c\u4e3a 127\uff0c\u6c42\u6b64\u6574\u6570\u6700\u5c0f\u503c\u3002<\/p>\n\n\n\n
8 \u4f4d\u673a\u5668\u7801\u7531 2 \u4e2a 0 \u548c 6 \u4e2a 1 \u7ec4\u6210\u3002\u8981\u8ba9\u79fb\u7801\u5bf9\u5e94\u7684\u771f\u503c\u6700\u5c0f\uff0c\u5c31\u8981\u8ba9\u673a\u5668\u7801\u65e0\u7b26\u53f7\u503c\u6700\u5c0f\u3002<\/p>\n\n\n\n
\u65e0\u7b26\u53f7\u503c\u6700\u5c0f\u7684\u6392\u5217\u662f\uff1a<\/p>\n\n\n\n
00111111<\/code><\/p>\n\n\n\n
\u5373\u5341\u8fdb\u5236 63\u3002<\/p>\n\n\n\n
\u504f\u7f6e\u503c\u4e3a 127\uff0c\u6240\u4ee5\uff1a<\/p>\n\n\n\n
x = 63 - 127 = -64<\/code><\/p>\n\n\n\n
A \u6b63\u786e\u3002<\/p>\n\n\n\n
B \u9009\u9879<\/h3>\n\n\n\n
\u504f\u7f6e\u503c\u4e3a 128\uff0c\u6c42\u6700\u5927\u503c\u3002<\/p>\n\n\n\n
\u8981\u8ba9\u673a\u5668\u7801\u65e0\u7b26\u53f7\u503c\u6700\u5927\uff0c\u5c31\u628a\u4e24\u4e2a 0 \u653e\u5728\u6700\u4f4e\u4f4d\uff1a<\/p>\n\n\n\n
11111100<\/code><\/p>\n\n\n\n
\u5176\u65e0\u7b26\u53f7\u503c\u4e3a\uff1a<\/p>\n\n\n\n
252<\/code><\/p>\n\n\n\n
\u771f\u503c\uff1a<\/p>\n\n\n\n
x = 252 - 128 = 124<\/code><\/p>\n\n\n\n
\u4e0d\u662f 123\uff0c\u6240\u4ee5 B \u9519\u3002<\/p>\n\n\n\n
C \u9009\u9879<\/h3>\n\n\n\n
\u82e5\u91c7\u7528\u8865\u7801\u8868\u793a\uff0c\u6c42\u6700\u5c0f\u503c\u3002<\/p>\n\n\n\n
\u8865\u7801\u4e2d\u8981\u5f97\u5230\u6700\u5c0f\u503c\uff0c\u7b26\u53f7\u4f4d\u5fc5\u987b\u4e3a 1\u3002\u7531\u4e8e\u603b\u5171\u6709 6 \u4e2a 1\u30012 \u4e2a 0\uff0c\u6240\u4ee5\u7b26\u53f7\u4f4d\u5360\u6389\u4e00\u4e2a 1\uff0c\u5269\u4e0b 7 \u4f4d\u4e2d\u8fd8\u6709 5 \u4e2a 1\u30012 \u4e2a 0\u3002<\/p>\n\n\n\n
\u8d1f\u6570\u8865\u7801\u7684\u771f\u503c\u4e3a\uff1a<\/p>\n\n\n\n
x = \u65e0\u7b26\u53f7\u503c - 256<\/code><\/p>\n\n\n\n
\u8981\u8ba9 x \u6700\u5c0f\uff0c\u5c31\u8981\u8ba9\u673a\u5668\u7801\u65e0\u7b26\u53f7\u503c\u5c3d\u91cf\u5c0f\u3002\u56e0\u6b64\u4f4e 7 \u4f4d\u4e2d\uff0c\u4e24\u4e2a 0 \u5e94\u653e\u5728\u6700\u9ad8\u7684\u4e24\u4e2a\u6570\u503c\u4f4d\u4e0a\uff1a<\/p>\n\n\n\n
10011111<\/code><\/p>\n\n\n\n
\u5176\u65e0\u7b26\u53f7\u503c\u4e3a\uff1a<\/p>\n\n\n\n
128 + 16 + 8 + 4 + 2 + 1 = 159<\/code><\/p>\n\n\n\n
\u771f\u503c\uff1a<\/p>\n\n\n\n
159 - 256 = -97<\/code><\/p>\n\n\n\n
\u4e0d\u662f -96\uff0c\u6240\u4ee5 C \u9519\u3002<\/p>\n\n\n\n
D \u9009\u9879<\/h3>\n\n\n\n
\u82e5\u91c7\u7528\u8865\u7801\u8868\u793a\uff0c\u6c42\u6700\u5927\u503c\u3002<\/p>\n\n\n\n
\u8865\u7801\u6700\u5927\u503c\u9700\u8981\u7b26\u53f7\u4f4d\u4e3a 0\u3002\u603b\u5171\u6709 6 \u4e2a 1\u30012 \u4e2a 0\uff0c\u7b26\u53f7\u4f4d\u7528\u6389\u4e00\u4e2a 0\uff0c\u4f4e 7 \u4f4d\u4e2d\u8fd8\u5269 6 \u4e2a 1\u30011 \u4e2a 0\u3002<\/p>\n\n\n\n
\u4e3a\u4e86\u6700\u5927\uff0c\u4f4e 7 \u4f4d\u7684 0 \u653e\u5728\u6700\u4f4e\u4f4d\uff1a<\/p>\n\n\n\n
01111110<\/code><\/p>\n\n\n\n
\u5176\u503c\u4e3a\uff1a<\/p>\n\n\n\n
126<\/code><\/p>\n\n\n\n
\u4e0d\u662f 252\uff0c\u6240\u4ee5 D \u9519\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u9009 A\u3002<\/p>\n\n\n\n
23 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\u8bf4\uff1a\u7528 2 \u4e2a 1<\/code> \u548c 6 \u4e2a 0<\/code> \u7ec4\u6210 8 \u4f4d\u4e8c\u8fdb\u5236\u8865\u7801\uff0c\u95ee\u6240\u80fd\u8868\u793a\u7684\u6700\u5927\u6574\u6570\u548c\u6700\u5c0f\u6574\u6570\u4e4b\u5dee\u3002<\/p>\n\n\n\n
\u5148\u6c42\u6700\u5927\u6574\u6570\u3002<\/p>\n\n\n\n
\u8865\u7801\u6700\u5927\u503c\u5fc5\u987b\u7b26\u53f7\u4f4d\u4e3a 0\u3002\u603b\u5171\u6709 2 \u4e2a 1\u30016 \u4e2a 0\uff0c\u7b26\u53f7\u4f4d\u4e3a 0 \u540e\uff0c\u4f4e 7 \u4f4d\u4e2d\u8fd8\u6709 2 \u4e2a 1\u3002\u4e3a\u4e86\u6700\u5927\uff0c\u628a\u4e24\u4e2a 1 \u653e\u5728\u6700\u9ad8\u7684\u6570\u503c\u4f4d\uff1a<\/p>\n\n\n\n
01100000<\/code><\/p>\n\n\n\n
\u771f\u503c\u4e3a\uff1a<\/p>\n\n\n\n
64 + 32 = 96<\/code><\/p>\n\n\n\n
\u518d\u6c42\u6700\u5c0f\u6574\u6570\u3002<\/p>\n\n\n\n
\u8865\u7801\u6700\u5c0f\u503c\u9700\u8981\u7b26\u53f7\u4f4d\u4e3a 1\u3002\u603b\u5171\u6709 2 \u4e2a 1\uff0c\u7b26\u53f7\u4f4d\u5360\u6389\u4e00\u4e2a 1\uff0c\u4f4e 7 \u4f4d\u4e2d\u8fd8\u5269 1 \u4e2a 1\u3002\u4e3a\u4e86\u8ba9\u8d1f\u6570\u5c3d\u53ef\u80fd\u5c0f\uff0c\u4f4e 7 \u4f4d\u7684\u503c\u8981\u5c3d\u91cf\u5c0f\uff0c\u6240\u4ee5\u628a\u8fd9\u4e2a 1 \u653e\u5728\u6700\u4f4e\u4f4d\uff1a<\/p>\n\n\n\n
10000001<\/code><\/p>\n\n\n\n
\u771f\u503c\u4e3a\uff1a<\/p>\n\n\n\n
129 - 256 = -127<\/code><\/p>\n\n\n\n
\u6240\u4ee5\u6700\u5927\u6574\u6570\u548c\u6700\u5c0f\u6574\u6570\u4e4b\u5dee\u4e3a\uff1a<\/p>\n\n\n\n
96 - (-127) = 223<\/code><\/p>\n\n\n\n
\u56e0\u6b64\u9009 A\u3002<\/p>\n\n\n\n
\u8fd9\u9898\u5bb9\u6613\u8bef\u4ee5\u4e3a\u6700\u5c0f\u503c\u662f 10000000 = -128<\/code>\uff0c\u4f46\u5b83\u53ea\u6709 1 \u4e2a 1<\/code>\uff0c\u4e0d\u6ee1\u8db3\u201c2 \u4e2a 1 \u548c 6 \u4e2a 0\u201d\u3002<\/p>\n\n\n\n
24 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\u95ee\u8865\u7801\u8868\u793a\u7684\u7279\u70b9\u3002<\/p>\n\n\n\n
\u9010\u6761\u5224\u65ad\uff1a<\/p>\n\n\n\n
I. \u96f6\u7684\u8868\u793a\u662f\u552f\u4e00\u7684\u3002<\/p>\n\n\n\n
\u6b63\u786e\u3002\u8865\u7801\u4e2d\u53ea\u6709\u4e00\u4e2a 0\uff1a<\/p>\n\n\n\n
00000000<\/code><\/p>\n\n\n\n
\u4e0d\u50cf\u539f\u7801\u3001\u53cd\u7801\u6709 +0<\/code> \u548c -0<\/code> \u4e24\u79cd\u8868\u793a\u3002<\/p>\n\n\n\n
II. \u7b26\u53f7\u4f4d\u53ef\u4ee5\u548c\u6570\u503c\u90e8\u5206\u4e00\u8d77\u53c2\u52a0\u8fd0\u7b97\u3002<\/p>\n\n\n\n
\u6b63\u786e\u3002\u8865\u7801\u7684\u6700\u5927\u4f18\u70b9\u4e4b\u4e00\u5c31\u662f\u7b26\u53f7\u4f4d\u53ef\u4ee5\u76f4\u63a5\u53c2\u4e0e\u52a0\u51cf\u8fd0\u7b97\uff0c\u4e0d\u9700\u8981\u5355\u72ec\u5904\u7406\u7b26\u53f7\u3002<\/p>\n\n\n\n
III. \u548c\u5176\u771f\u503c\u7684\u5bf9\u5e94\u5173\u7cfb\u7b80\u5355\u3001\u76f4\u89c2\u3002<\/p>\n\n\n\n
\u9519\u8bef\u3002\u8fd9\u4e2a\u66f4\u50cf\u662f\u539f\u7801\u7684\u7279\u70b9\u3002\u539f\u7801\u7b26\u53f7\u4f4d\u8868\u793a\u6b63\u8d1f\uff0c\u6570\u503c\u4f4d\u76f4\u63a5\u8868\u793a\u7edd\u5bf9\u503c\uff0c\u6bd4\u8f83\u76f4\u89c2\u3002\u8865\u7801\u8d1f\u6570\u7684\u6570\u503c\u4f4d\u4e0d\u662f\u7edd\u5bf9\u503c\uff0c\u7406\u89e3\u4e0a\u4e0d\u5982\u539f\u7801\u76f4\u89c2\u3002<\/p>\n\n\n\n
IV. \u51cf\u6cd5\u53ef\u7528\u52a0\u6cd5\u6765\u5b9e\u73b0\u3002<\/p>\n\n\n\n
\u6b63\u786e\u3002\u56e0\u4e3a\uff1a<\/p>\n\n\n\n
A - B = A + (-B)<\/code><\/p>\n\n\n\n
\u800c\u8865\u7801\u7cfb\u7edf\u4e2d\u8d1f\u6570\u53ef\u4ee5\u76f4\u63a5\u7528\u8865\u7801\u53c2\u4e0e\u52a0\u6cd5\u8fd0\u7b97\uff0c\u6240\u4ee5\u51cf\u6cd5\u53ef\u4ee5\u8f6c\u5316\u4e3a\u52a0\u6cd5\u3002<\/p>\n\n\n\n
\u56e0\u6b64\u6b63\u786e\u7684\u662f I\u3001II\u3001IV\u3002<\/p>\n\n\n\n
\u9009 D\u3002<\/p>\n\n\n\n
\u8fd9\u7ec4\u9898\u7684\u901a\u7528\u505a\u6cd5<\/h2>\n\n\n\n
\u8fd9\u51e0\u9898\u672c\u8d28\u4e0a\u8003\u56db\u4ef6\u4e8b\u3002<\/p>\n\n\n\n
\u7b2c\u4e00\uff0c\u8865\u7801\u6574\u6570\u53ef\u4ee5\u76f4\u63a5\u6309\u6743\u503c\u7b97\u3002n \u4f4d\u8865\u7801\u6700\u9ad8\u4f4d\u6743\u503c\u662f -2\u207f\u207b\u00b9<\/code>\uff0c\u5176\u4f59\u4f4d\u6743\u503c\u6b63\u5e38\u4e3a\u6b63\u3002\u4f8b\u5982 8 \u4f4d\u8865\u7801\uff1a<\/p>\n\n\n\n
b\u2087b\u2086b\u2085b\u2084b\u2083b\u2082b\u2081b\u2080<\/code><\/p>\n\n\n\n
\u771f\u503c\u4e3a\uff1a<\/p>\n\n\n\n
-b\u2087\u00d7128 + b\u2086\u00d764 + b\u2085\u00d732 + ... + b\u2080<\/code><\/p>\n\n\n\n
\u6216\u8005\u628a\u673a\u5668\u7801\u5148\u5f53\u65e0\u7b26\u53f7\u6570 U\uff1a<\/p>\n\n\n\n
\u82e5\u6700\u9ad8\u4f4d\u4e3a 0\uff0c\u771f\u503c\u5c31\u662f U\uff1b<\/p>\n\n\n\n
\u82e5\u6700\u9ad8\u4f4d\u4e3a 1\uff0c\u771f\u503c\u5c31\u662f\uff1a<\/p>\n\n\n\n
U - 2\u2078<\/code><\/p>\n\n\n\n
\u7b2c\u4e8c\uff0c\u79fb\u7801\u76f4\u63a5\u7528\u504f\u7f6e\u503c\u3002\u5e38\u89c1 8 \u4f4d\u79fb\u7801\u504f\u7f6e\u503c\u4e3a 128\uff1a<\/p>\n\n\n\n
[x]\u79fb = x + 128<\/code><\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
x = [x]\u79fb\u7684\u65e0\u7b26\u53f7\u503c - 128<\/code><\/p>\n\n\n\n
\u82e5\u9898\u76ee\u660e\u786e\u8bf4\u504f\u7f6e\u503c\u4e3a 127\uff0c\u5c31\u7528\uff1a<\/p>\n\n\n\n
x = [x]\u79fb\u7684\u65e0\u7b26\u53f7\u503c - 127<\/code><\/p>\n\n\n\n
\u7b2c\u4e09\uff0c\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u7684 0 \u548c\u7279\u6b8a\u503c\u8981\u8bb0\u6e05\u695a\u3002<\/p>\n\n\n\n
8 \u4f4d\u60c5\u51b5\u4e0b\uff1a<\/p>\n\n\n\n
10000000<\/code><\/p>\n\n\n\n
\u5728\u539f\u7801\u4e2d\u8868\u793a -0<\/code>\uff1b<\/p>\n\n\n\n
\u5728\u8865\u7801\u4e2d\u8868\u793a -128<\/code>\uff1b<\/p>\n\n\n\n
\u5728\u79fb\u7801\u4e2d\u8868\u793a 0<\/code>\uff0c\u56e0\u4e3a 128 - 128 = 0<\/code>\u3002<\/p>\n\n\n\n
11111111<\/code><\/p>\n\n\n\n
\u5728\u8865\u7801\u4e2d\u8868\u793a -1<\/code>\uff1b<\/p>\n\n\n\n
\u5728\u53cd\u7801\u4e2d\u8868\u793a -0<\/code>\uff1b<\/p>\n\n\n\n
\u5728\u539f\u7801\u4e2d\u8868\u793a -127<\/code>\uff1b<\/p>\n\n\n\n
\u5728\u79fb\u7801\u4e2d\u8868\u793a +127<\/code>\u3002<\/p>\n\n\n\n
\u7b2c\u56db\uff0c\u6392\u5217 0 \u548c 1 \u6c42\u6700\u5927\u6700\u5c0f\u65f6\uff0c\u4e0d\u8981\u6025\u7740\u8f6c\u539f\u7801\uff0c\u8981\u5148\u770b\u7b26\u53f7\u4f4d\u3002<\/p>\n\n\n\n
\u8865\u7801\u6c42\u6700\u5927\uff1a\u7b26\u53f7\u4f4d\u5c3d\u91cf\u4e3a 0\uff0c\u5269\u4f59\u7684 1 \u5c3d\u91cf\u653e\u9ad8\u4f4d\u3002<\/p>\n\n\n\n
\u8865\u7801\u6c42\u6700\u5c0f\uff1a\u7b26\u53f7\u4f4d\u5fc5\u987b\u4e3a 1\uff0c\u7136\u540e\u4f4e\u4f4d\u90e8\u5206\u5c3d\u91cf\u5c0f\uff0c\u56e0\u4e3a\u8d1f\u6570\u8865\u7801\u771f\u503c\u662f \u65e0\u7b26\u53f7\u503c - 2\u207f<\/code>\u3002<\/p>\n\n\n\n
\u79fb\u7801\u6c42\u6700\u5927\u6216\u6700\u5c0f\uff1a\u76f4\u63a5\u770b\u673a\u5668\u7801\u65e0\u7b26\u53f7\u503c\u6700\u5927\u6216\u6700\u5c0f\uff0c\u518d\u51cf\u504f\u7f6e\u503c\u3002<\/p>\n\n\n\n
\n\n\n\n
\u79fb\u7801\u4e0e\u504f\u79fb\u503c\u7684\u5173\u7cfb\uff1f\u6bd4\u65b9\u8bf4\u5bc4\u5b58\u5668\u5185\u5bb9\u957f\u5ea6\u4e3a\u516b\u4f4d\uff0c\u90a3\u4e48\uff0c\u4e0d\u662f\u9ed8\u8ba4\u504f\u79fb\u4e3a\u516b\u4f4d\uff0c\u5e76\u4e14\u4ee5\u7801\u6570\u503c\u7684\u8ba1\u7b97\uff0c\u662f\u4e0d\u662f\u76f8\u5bf9\u4e8e\u8865\u7801\uff0c\u8fd8\u662f\u8bf4\u5982\u679c\u957f\u5ea6\u4e3a8\u4f4d\uff0c\u4f46\u662f\u5b83\u7684\u504f\u79fb\u503c\u4e0d\u4e00\u5b9a\u4e3a\u516b\u4f4d<\/p>\n\n\n\n
\u4e0d\u662f\u201c\u957f\u5ea6\u4e3a 8 \u4f4d\uff0c\u6240\u4ee5\u504f\u79fb\u4e3a 8 \u4f4d\u201d\u3002\u8fd9\u91cc\u8981\u5206\u6e05\u4e24\u4e2a\u6982\u5ff5\uff1a<\/p>\n\n\n\n
\u673a\u5668\u5b57\u957f\u662f 8 \u4f4d\uff0c\u8868\u793a\u8fd9\u4e2a\u79fb\u7801\u673a\u5668\u6570\u4e00\u5171\u6709 8 \u4e2a\u4e8c\u8fdb\u5236\u4f4d\uff1b\u504f\u79fb\u503c\u3001\u504f\u7f6e\u503c\u662f\u4e00\u4e2a\u5e38\u6570\uff0c\u4e0d\u662f\u201c\u51e0\u4f4d\u201d\u7684\u610f\u601d\u3002<\/p>\n\n\n\n
\u5bf9\u4e8e n \u4f4d\u79fb\u7801\uff0c\u5e38\u89c1\u5173\u7cfb\u662f\uff1a<\/p>\n\n\n\n
[x]\u79fb = x + \u504f\u7f6e\u503c\nx = [x]\u79fb\u7684\u65e0\u7b26\u53f7\u503c - \u504f\u7f6e\u503c\n<\/code><\/pre>\n\n\n\n
\u5728\u8ba1\u7b97\u673a\u7ec4\u6210\u539f\u7406\u3001408 \u98ce\u683c\u9898\u76ee\u4e2d\uff0c\u5982\u679c\u9898\u76ee\u8bf4\u201c8 \u4f4d\u79fb\u7801\u201d\u800c\u6ca1\u6709\u989d\u5916\u8bf4\u660e\uff0c\u5f88\u591a\u6559\u6750\u9ed8\u8ba4\u504f\u7f6e\u503c\u53d6\uff1a<\/p>\n\n\n\n
\u504f\u7f6e\u503c = 2\u2077 = 128\n<\/code><\/pre>\n\n\n\n
\u4e5f\u5c31\u662f\u4e00\u822c n \u4f4d\u79fb\u7801\u9ed8\u8ba4\uff1a<\/p>\n\n\n\n
\u504f\u7f6e\u503c = 2\u207f\u207b\u00b9\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5 8 \u4f4d\u65f6\u662f 128\uff0c\u4e0d\u662f 8\u3002<\/p>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u79fb\u7801 11111111<\/code>\uff0c\u628a\u5b83\u5148\u5f53\u4f5c\u65e0\u7b26\u53f7\u6570\u770b\uff1a<\/p>\n\n\n\n
11111111\u2082 = 255\n<\/code><\/pre>\n\n\n\n
\u82e5\u504f\u7f6e\u503c\u4e3a 128\uff0c\u5219\uff1a<\/p>\n\n\n\n
x = 255 - 128 = 127\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u5b83\u8868\u793a +127<\/code>\u3002<\/p>\n\n\n\n
\u518d\u6bd4\u5982\uff1a<\/p>\n\n\n\n
00000000\u2082 = 0\nx = 0 - 128 = -128\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5 8 \u4f4d\u79fb\u7801 00000000<\/code> \u8868\u793a -128<\/code>\u3002<\/p>\n\n\n\n
\u8fd9\u6b63\u662f\u4e0a\u4e00\u9898\u91cc\u4e3a\u4ec0\u4e48 00000000<\/code> \u53ef\u4ee5\u8868\u793a -128<\/code>\uff0c11111111<\/code> \u53ef\u4ee5\u8868\u793a +127<\/code>\u3002<\/p>\n\n\n\n
\u79fb\u7801\u4e0d\u662f\u201c\u76f8\u5bf9\u4e8e\u8865\u7801\u8ba1\u7b97\u201d\u7684\uff0c\u5b83\u672c\u8d28\u4e0a\u662f\u201c\u771f\u503c\u52a0\u504f\u7f6e\u503c\u201d\u3002\u4e0d\u8fc7\u5728\u504f\u7f6e\u503c\u53d6 2\u207f\u207b\u00b9<\/code> \u65f6\uff0c\u79fb\u7801\u548c\u8865\u7801\u4e4b\u95f4\u6709\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u5feb\u6377\u5173\u7cfb\uff1a<\/p>\n\n\n\n
[x]\u79fb = [x]\u8865 \u7684\u7b26\u53f7\u4f4d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u6ce8\u610f\uff1a\u53ea\u53d6\u53cd\u6700\u9ad8\u7b26\u53f7\u4f4d\uff0c\u5176\u4ed6\u4f4d\u4e0d\u53d8\u3002<\/p>\n\n\n\n
\u4f8b\u5982 8 \u4f4d\u8865\u7801\u4e2d\uff1a<\/p>\n\n\n\n
+5 \u7684\u8865\u7801 = 00000101\n+5 \u7684\u79fb\u7801 = 10000101\n<\/code><\/pre>\n\n\n\n
\u53ea\u628a\u6700\u9ad8\u4f4d\u4ece 0 \u6539\u6210 1\u3002<\/p>\n\n\n\n
\u518d\u770b\u8d1f\u6570\uff1a<\/p>\n\n\n\n
-5 \u7684\u8865\u7801 = 11111011\n-5 \u7684\u79fb\u7801 = 01111011\n<\/code><\/pre>\n\n\n\n
\u53ea\u628a\u6700\u9ad8\u4f4d\u4ece 1 \u6539\u6210 0\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u505a\u9898\u65f6\u53ef\u4ee5\u8fd9\u6837\u533a\u5206\uff1a<\/p>\n\n\n\n
\u539f\u7801\uff1a\u7b26\u53f7\u4f4d\u8868\u793a\u6b63\u8d1f\uff0c\u6570\u503c\u4f4d\u8868\u793a\u7edd\u5bf9\u503c\n\u53cd\u7801\uff1a\u8d1f\u6570\u5728\u539f\u7801\u57fa\u7840\u4e0a\u6570\u503c\u4f4d\u53d6\u53cd\n\u8865\u7801\uff1a\u8d1f\u6570\u5728\u53cd\u7801\u57fa\u7840\u4e0a\u672b\u4f4d\u52a0 1\n\u79fb\u7801\uff1a\u771f\u503c\u52a0\u504f\u7f6e\u503c\uff1b\u82e5\u504f\u7f6e\u503c\u4e3a 2\u207f\u207b\u00b9\uff0c\u5219\u7b49\u4e8e\u8865\u7801\u7b26\u53f7\u4f4d\u53d6\u53cd\n<\/code><\/pre>\n\n\n\n
\u4f46\u662f\u8981\u7279\u522b\u6ce8\u610f\uff1a\u79fb\u7801\u7684\u504f\u7f6e\u503c\u4e0d\u4e00\u5b9a\u6c38\u8fdc\u662f 128\u3002\u5b83\u53d6\u51b3\u4e8e\u9898\u76ee\u7ea6\u5b9a\u3002<\/p>\n\n\n\n
8 \u4f4d\u79fb\u7801\u5e38\u89c1\u6709\u4e24\u79cd\u504f\u7f6e\uff1a<\/p>\n\n\n\n
\u504f\u7f6e\u503c = 128\uff0c\u4e5f\u5c31\u662f 2\u2077\n\u504f\u7f6e\u503c = 127\uff0c\u4e5f\u5c31\u662f 2\u2077 - 1\n<\/code><\/pre>\n\n\n\n
408 \u548c\u7ec4\u6210\u539f\u7406\u666e\u901a\u5b9a\u70b9\u6574\u6570\u79fb\u7801\u9898\u91cc\uff0c\u82e5\u65e0\u7279\u6b8a\u8bf4\u660e\uff0c\u901a\u5e38\u6309 2\u207f\u207b\u00b9<\/code>\uff0c\u5373 8 \u4f4d\u53d6 128\u3002<\/p>\n\n\n\n
\u4f46\u6d6e\u70b9\u6570\u9636\u7801\u4e2d\uff0c\u5c24\u5176\u6d89\u53ca IEEE 754 \u5355\u7cbe\u5ea6\u6d6e\u70b9\u6570\u65f6\uff0c8 \u4f4d\u9636\u7801\u7684\u504f\u7f6e\u503c\u901a\u5e38\u662f\uff1a<\/p>\n\n\n\n
127\n<\/code><\/pre>\n\n\n\n
\u4e5f\u5c31\u662f 2\u2077 - 1<\/code>\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u9047\u5230\u9898\u76ee\u65f6\u8981\u6309\u8fd9\u4e2a\u4f18\u5148\u7ea7\u5224\u65ad\uff1a<\/p>\n\n\n\n
\u7b2c\u4e00\uff0c\u5982\u679c\u9898\u76ee\u660e\u786e\u5199\u201c\u504f\u7f6e\u503c\u4e3a\u591a\u5c11\u201d\uff0c\u5fc5\u987b\u6309\u9898\u76ee\u7ed9\u7684\u504f\u7f6e\u503c\u6765\u7b97\u3002<\/p>\n\n\n\n
\u7b2c\u4e8c\uff0c\u5982\u679c\u662f\u666e\u901a\u7ec4\u6210\u539f\u7406\u79fb\u7801\u6574\u6570\u9898\uff0c\u5e38\u9ed8\u8ba4 n \u4f4d\u79fb\u7801\u504f\u7f6e\u503c\u4e3a 2\u207f\u207b\u00b9<\/code>\u30028 \u4f4d\u5c31\u662f 128\u3002<\/p>\n\n\n\n
\u7b2c\u4e09\uff0c\u5982\u679c\u662f IEEE 754 \u6d6e\u70b9\u6570\u9636\u7801\uff0c8 \u4f4d\u9636\u7801\u504f\u7f6e\u503c\u901a\u5e38\u662f 127\u3002<\/p>\n\n\n\n
\u4e3e\u4e2a\u5bf9\u6bd4\uff1a<\/p>\n\n\n\n
\u540c\u6837\u662f 8 \u4f4d\u673a\u5668\u7801\uff1a<\/p>\n\n\n\n
11111111\u2082 = 255\n<\/code><\/pre>\n\n\n\n
\u82e5\u504f\u7f6e\u503c\u4e3a 128\uff1a<\/p>\n\n\n\n
x = 255 - 128 = 127\n<\/code><\/pre>\n\n\n\n
\u82e5\u504f\u7f6e\u503c\u4e3a 127\uff1a<\/p>\n\n\n\n
x = 255 - 127 = 128\n<\/code><\/pre>\n\n\n\n
\u7ed3\u679c\u5c31\u4e0d\u540c\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u4e0d\u80fd\u53ea\u770b\u5230\u201c8 \u4f4d\u201d\u5c31\u673a\u68b0\u5730\u8bf4\u504f\u7f6e\u4e00\u5b9a\u662f 128\uff0c\u66f4\u4e0d\u80fd\u8bf4\u504f\u7f6e\u662f 8\u3002\u51c6\u786e\u8bf4\u6cd5\u5e94\u8be5\u662f\uff1a<\/p>\n\n\n\n
8 \u4f4d\u79fb\u7801\u82e5\u6309\u666e\u901a\u5b9a\u70b9\u6574\u6570\u79fb\u7801\uff0c\u901a\u5e38\u9ed8\u8ba4\u504f\u7f6e\u503c\u4e3a 2\u2077 = 128\uff1b\n\u4f46\u82e5\u9898\u76ee\u660e\u786e\u7ed9\u51fa\u504f\u7f6e\u503c\uff0c\u6216\u5c5e\u4e8e IEEE 754 \u6d6e\u70b9\u9636\u7801\uff0c\u5219\u5fc5\u987b\u6309\u9898\u76ee\u6216\u6807\u51c6\u6765\u3002\n<\/code><\/pre>\n\n\n\n
\u5bf9\u4e8e\u8003\u7814\u505a\u9898\uff0c\u6700\u7a33\u7684\u5224\u65ad\u65b9\u6cd5\u662f\uff1a<\/p>\n\n\n\n
\u79fb\u7801\u771f\u503c = \u673a\u5668\u7801\u65e0\u7b26\u53f7\u503c - \u504f\u7f6e\u503c\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u6ca1\u6709\u7ed9\u504f\u7f6e\u503c\uff0c\u518d\u6839\u636e\u9898\u578b\u5224\u65ad\u9ed8\u8ba4\u504f\u7f6e\u3002\u666e\u901a\u79fb\u7801\u6574\u6570\u9898\u591a\u6570\u53d6 2\u207f\u207b\u00b9<\/code>\uff1b\u6d6e\u70b9\u9636\u7801\u9898\u5e38\u89c1\u53d6 2\u1d4f\u207b\u00b9 - 1<\/code>\u3002<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
26 \u5230 34 \u7684\u7b54\u6848\u4f9d\u6b21\u662f\uff1a<\/p>\n\n\n\n
26. B\n27. B\n28. B\n29. D\n30. D\n31. A\n32. D\n33. B\n34. D\n<\/code><\/pre>\n\n\n\n
\u8fd9\u7ec4\u9898\u96c6\u4e2d\u8003\u7684\u662f\u201c\u8865\u7801\u3001\u7b26\u53f7\u6269\u5c55\u3001\u96f6\u6269\u5c55\u3001C \u8bed\u8a00\u6709\u7b26\u53f7\/\u65e0\u7b26\u53f7\u8f6c\u6362\u201d\u3002\u505a\u8fd9\u7c7b\u9898\u65f6\uff0c\u4e0d\u8981\u53ea\u770b\u5341\u8fdb\u5236\u503c\uff0c\u5173\u952e\u662f\u5148\u786e\u5b9a\u201c\u4f4d\u6570\u201d\u548c\u201c\u89e3\u91ca\u65b9\u5f0f\u201d\u3002<\/p>\n\n\n\n
\n\n\n\n
26 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\uff1a16 \u4f4d\u8865\u7801\u6574\u6570 0x8FA0<\/code> \u6269\u5c55\u4e3a 32 \u4f4d\u5e94\u8be5\u662f\uff1f<\/p>\n\n\n\n
16 \u4f4d\u8865\u7801\u7684\u6700\u9ad8\u4f4d\u662f\u7b26\u53f7\u4f4d\u30020x8FA0<\/code> \u5199\u6210\u4e8c\u8fdb\u5236\u65f6\u6700\u9ad8\u4f4d\u662f 1\uff0c\u8bf4\u660e\u5b83\u662f\u8d1f\u6570\u3002<\/p>\n\n\n\n
\u8865\u7801\u6269\u5c55\u89c4\u5219\u662f\uff1a\u6b63\u6570\u9ad8\u4f4d\u8865 0\uff0c\u8d1f\u6570\u9ad8\u4f4d\u8865 1\uff0c\u4e5f\u53eb\u7b26\u53f7\u6269\u5c55\u3002<\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
16 \u4f4d\uff1a1000 1111 1010 0000\n32 \u4f4d\uff1a1111 1111 1111 1111 1000 1111 1010 0000\n<\/code><\/pre>\n\n\n\n
\u5373\uff1a<\/p>\n\n\n\n
0xFFFF8FA0\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u662f B\u3002<\/p>\n\n\n\n
\u6613\u9519\u70b9\u662f\u770b\u5230\u5341\u516d\u8fdb\u5236\u76f4\u63a5\u524d\u9762\u8865 0\uff0c\u5199\u6210 0x00008FA0<\/code>\uff0c\u8fd9\u662f\u65e0\u7b26\u53f7\u6570\u6269\u5c55\u6216\u6b63\u6570\u6269\u5c55\u7684\u505a\u6cd5\uff0c\u4e0d\u9002\u7528\u4e8e\u8d1f\u7684\u8865\u7801\u6574\u6570\u3002<\/p>\n\n\n\n
\n\n\n\n
27 \u9898<\/h2>\n\n\n\n
\u4ee3\u7801\uff1a<\/p>\n\n\n\n
unsigned short x = 65530;\nunsigned int y = x;\n<\/code><\/pre>\n\n\n\n
\u5df2\u77e5 short<\/code> \u4e3a 16 \u4f4d\uff0cint<\/code> \u4e3a 32 \u4f4d\u3002<\/p>\n\n\n\n
\u5148\u628a 65530 \u8f6c\u6210 16 \u4f4d\u65e0\u7b26\u53f7\u6570\uff1a<\/p>\n\n\n\n
65530 = 65536 - 6 = 0xFFFA\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5 x<\/code> \u7684\u673a\u5668\u6570\u662f\uff1a<\/p>\n\n\n\n
1111 1111 1111 1010\n<\/code><\/pre>\n\n\n\n
\u4f46\u6ce8\u610f\uff0cx<\/code> \u662f unsigned short<\/code>\uff0c\u5b83\u662f\u65e0\u7b26\u53f7\u6570\u3002\u65e0\u7b26\u53f7\u6570\u6269\u5c55\u4e3a\u66f4\u957f\u7684\u65e0\u7b26\u53f7\u6570\u65f6\uff0c\u91c7\u7528\u96f6\u6269\u5c55\uff0c\u4e5f\u5c31\u662f\u9ad8\u4f4d\u8865 0\u3002<\/p>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
y = 0x0000FFFA\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u662f B\u3002<\/p>\n\n\n\n
\u8fd9\u9898\u7684\u9677\u9631\u5728\u4e8e 0xFFFA<\/code> \u6700\u9ad8\u4f4d\u662f 1\uff0c\u5f88\u591a\u4eba\u4f1a\u8bef\u4ee5\u4e3a\u8981\u7b26\u53f7\u6269\u5c55\u6210 0xFFFFFFFA<\/code>\u3002\u4f46\u8fd9\u91cc x<\/code> \u662f\u65e0\u7b26\u53f7\u6570\uff0c\u4e0d\u770b\u7b26\u53f7\u4f4d\uff0c\u6269\u5c55\u65f6\u9ad8\u4f4d\u8865 0\u3002<\/p>\n\n\n\n
\n\n\n\n
28 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\uff1a\u7531 3 \u4e2a 1<\/code> \u548c 5 \u4e2a 0<\/code> \u7ec4\u6210\u7684 8 \u4f4d\u4e8c\u8fdb\u5236\u8865\u7801\uff0c\u80fd\u8868\u793a\u7684\u6700\u5c0f\u6574\u6570\u662f\u591a\u5c11\uff1f<\/p>\n\n\n\n
8 \u4f4d\u8865\u7801\u4e2d\uff0c\u5982\u679c\u8981\u8868\u793a\u8d1f\u6570\uff0c\u6700\u9ad8\u4f4d\u5fc5\u987b\u662f 1\u3002\u8865\u7801\u503c\u7684\u6743\u91cd\u53ef\u4ee5\u8fd9\u6837\u770b\uff1a<\/p>\n\n\n\n
b7 b6 b5 b4 b3 b2 b1 b0\n\nb7 \u7684\u6743\u503c\u662f -128\nb6 \u5230 b0 \u7684\u6743\u503c\u5206\u522b\u662f 64, 32, 16, 8, 4, 2, 1\n<\/code><\/pre>\n\n\n\n
\u9898\u76ee\u8981\u6c42\u4e00\u5171\u6709 3 \u4e2a 1\u3002\u4e3a\u4e86\u8ba9\u8868\u793a\u7684\u6574\u6570\u6700\u5c0f\uff0c\u4e5f\u5c31\u662f\u5c3d\u91cf\u8d1f\uff0c\u6700\u9ad8\u4f4d\u5fc5\u987b\u53d6 1\uff0c\u8fd9\u6837\u5148\u5f97\u5230\uff1a<\/p>\n\n\n\n
-128\n<\/code><\/pre>\n\n\n\n
\u5269\u4e0b\u8fd8\u9700\u8981\u653e 2 \u4e2a 1\u3002\u7531\u4e8e\u4f4e 7 \u4f4d\u90fd\u662f\u6b63\u6743\u503c\uff0c\u4e3a\u4e86\u8ba9\u603b\u503c\u5c3d\u91cf\u5c0f\uff0c\u5e94\u8be5\u628a\u8fd9\u4e24\u4e2a 1 \u653e\u5728\u6743\u503c\u6700\u5c0f\u7684\u4f4d\u7f6e\uff0c\u5373 b1<\/code> \u548c b0<\/code>\uff1a<\/p>\n\n\n\n
1000 0011\n<\/code><\/pre>\n\n\n\n
\u5bf9\u5e94\u6570\u503c\u4e3a\uff1a<\/p>\n\n\n\n
-128 + 2 + 1 = -125\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u662f B\u3002<\/p>\n\n\n\n
\u5e38\u89c1\u8bef\u533a\u662f\u8ba4\u4e3a 1 \u8d8a\u9760\u9ad8\u4f4d\u8d8a\u5c0f\uff0c\u4f46\u8d1f\u6570\u8865\u7801\u91cc\u6700\u9ad8\u4f4d\u5df2\u7ecf\u63d0\u4f9b\u4e86\u8d1f\u6743\u503c\uff0c\u540e\u9762\u4f4e\u4f4d\u7684 1 \u90fd\u662f\u5728\u201c\u52a0\u6b63\u6570\u201d\u3002\u6240\u4ee5\u5269\u4e0b\u7684 1 \u5e94\u5c3d\u91cf\u653e\u5728\u6700\u4f4e\u4f4d\u3002<\/p>\n\n\n\n
\n\n\n\n
29 \u9898<\/h2>\n\n\n\n
\u4ee3\u7801\uff1a<\/p>\n\n\n\n
short si = -32767;\nunsigned short usi = si;\n<\/code><\/pre>\n\n\n\n
16 \u4f4d\u8865\u7801\u4e2d\uff1a<\/p>\n\n\n\n
+32767 = 0x7FFF\n-32767 = 0x8001\n<\/code><\/pre>\n\n\n\n
\u56e0\u4e3a\uff1a<\/p>\n\n\n\n
-32767 \u7684\u8865\u7801 = 32767 \u7684\u539f\u7801\u6309\u4f4d\u53d6\u53cd\u518d\u52a0 1\n0x7FFF \u53d6\u53cd = 0x8000\n0x8000 + 1 = 0x8001\n<\/code><\/pre>\n\n\n\n
\u8d4b\u503c\u7ed9 unsigned short<\/code> \u540e\uff0c\u4f4d\u6a21\u5f0f\u4e0d\u53d8\uff0c\u53ea\u662f\u89e3\u91ca\u65b9\u5f0f\u53d8\u6210\u65e0\u7b26\u53f7\u6574\u6570\u3002<\/p>\n\n\n\n
0x8001 = 32768 + 1 = 32769\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5 usi<\/code> \u7684\u503c\u4e3a 32769\u3002<\/p>\n\n\n\n
\u7b54\u6848\u662f D\u3002<\/p>\n\n\n\n
\u8fd9\u9898\u8981\u6293\u4f4f\u4e00\u53e5\u8bdd\uff1a\u540c\u6837\u7684\u673a\u5668\u6570\uff0c\u4f5c\u4e3a\u6709\u7b26\u53f7\u8865\u7801\u89e3\u91ca\u548c\u4f5c\u4e3a\u65e0\u7b26\u53f7\u6570\u89e3\u91ca\uff0c\u6570\u503c\u53ef\u80fd\u4e0d\u540c\u3002<\/p>\n\n\n\n
\n\n\n\n
30 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\uff1a\u51af\u00b7\u8bfa\u4f9d\u66fc\u7ed3\u6784\u8ba1\u7b97\u673a\u4e2d\u7684\u6570\u636e\u91c7\u7528\u4e8c\u8fdb\u5236\u7f16\u7801\u8868\u793a\uff0c\u4e3b\u8981\u539f\u56e0\u662f\uff1f<\/p>\n\n\n\n
\u4e09\u4e2a\u8bf4\u6cd5\u5206\u522b\u662f\uff1a<\/p>\n\n\n\n
I. \u4e8c\u8fdb\u5236\u7684\u8fd0\u7b97\u89c4\u5219\u7b80\u5355\nII. \u5236\u9020\u4e24\u4e2a\u7a33\u5b9a\u6001\u7684\u7269\u7406\u5668\u4ef6\u8f83\u5bb9\u6613\nIII. \u4fbf\u4e8e\u7528\u903b\u8f91\u95e8\u7535\u8def\u5b9e\u73b0\u7b97\u672f\u8fd0\u7b97\n<\/code><\/pre>\n\n\n\n
\u8fd9\u4e09\u4e2a\u90fd\u662f\u6b63\u786e\u539f\u56e0\u3002<\/p>\n\n\n\n
\u4e8c\u8fdb\u5236\u53ea\u6709 0 \u548c 1\uff0c\u8fd0\u7b97\u89c4\u5219\u7b80\u5355\uff1b\u786c\u4ef6\u4e2d\u7528\u9ad8\u4f4e\u7535\u5e73\u3001\u5bfc\u901a\/\u622a\u6b62\u3001\u78c1\u5316\u65b9\u5411\u7b49\u4e24\u4e2a\u7a33\u5b9a\u72b6\u6001\u8868\u793a\u4fe1\u606f\u6bd4\u8f83\u5bb9\u6613\uff1b\u903b\u8f91\u95e8\u7535\u8def\u5929\u7136\u9002\u5408\u5904\u7406\u4e8c\u503c\u903b\u8f91\uff0c\u4e5f\u65b9\u4fbf\u5b9e\u73b0\u7b97\u672f\u8fd0\u7b97\u548c\u903b\u8f91\u8fd0\u7b97\u3002<\/p>\n\n\n\n
\u7b54\u6848\u662f D\u3002<\/p>\n\n\n\n
\n\n\n\n
31 \u9898<\/h2>\n\n\n\n
\u4ee3\u7801\uff1a<\/p>\n\n\n\n
unsigned short usi = 65535;\nshort si = usi;\n<\/code><\/pre>\n\n\n\n
16 \u4f4d\u65e0\u7b26\u53f7\u6570 65535 \u7684\u673a\u5668\u6570\u662f\uff1a<\/p>\n\n\n\n
0xFFFF\n<\/code><\/pre>\n\n\n\n
\u8d4b\u503c\u7ed9 short<\/code> \u540e\uff0c\u4ecd\u6309 16 \u4f4d\u8865\u7801\u89e3\u91ca\u3002<\/p>\n\n\n\n
\u5728 16 \u4f4d\u8865\u7801\u4e2d\uff1a<\/p>\n\n\n\n
0xFFFF = -1\n<\/code><\/pre>\n\n\n\n
\u56e0\u4e3a -1<\/code> \u7684\u8865\u7801\u5c31\u662f\u5168 1\u3002<\/p>\n\n\n\n
\u6240\u4ee5 si<\/code> \u7684\u503c\u662f\uff1a<\/p>\n\n\n\n
-1\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u662f A\u3002<\/p>\n\n\n\n
\u8fd9\u9898\u548c 29 \u9898\u662f\u53cd\u5411\u8003\u6cd5\uff1a<\/p>\n\n\n\n
\u6709\u7b26\u53f7 short -> \u65e0\u7b26\u53f7 short\uff1a\u540c\u4e00\u673a\u5668\u6570\u6309\u65e0\u7b26\u53f7\u89e3\u91ca\n\u65e0\u7b26\u53f7 short -> \u6709\u7b26\u53f7 short\uff1a\u540c\u4e00\u673a\u5668\u6570\u6309\u8865\u7801\u89e3\u91ca\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
32 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\u7ed9\u51fa\u4e09\u4e2a\u673a\u5668\u6570\uff1a<\/p>\n\n\n\n
x = FFFDH\ny = FFDFH\nz = 7FFCH\n<\/code><\/pre>\n\n\n\n
\u9ed8\u8ba4\u6309 16 \u4f4d\u770b\u3002<\/p>\n\n\n\n
\u5148\u6309\u65e0\u7b26\u53f7\u6574\u6570\u89e3\u91ca\uff1a<\/p>\n\n\n\n
x = 0xFFFD = 65533\ny = 0xFFDF = 65503\nz = 0x7FFC = 32764\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u65e0\u7b26\u53f7\u65f6\u5927\u5c0f\u5173\u7cfb\u662f\uff1a<\/p>\n\n\n\n
z < y < x\n<\/code><\/pre>\n\n\n\n
\u9009\u9879 A\u3001B \u90fd\u4e0d\u5bf9\u3002<\/p>\n\n\n\n
\u518d\u6309\u6709\u7b26\u53f7\u8865\u7801\u89e3\u91ca\uff1a<\/p>\n\n\n\n
x = 0xFFFD = -3\ny = 0xFFDF = -33\nz = 0x7FFC = 32764\n<\/code><\/pre>\n\n\n\n
\u56e0\u4e3a\uff1a<\/p>\n\n\n\n
0xFFFD \u662f -3\n0xFFDF \u662f -33\n0x7FFC \u6700\u9ad8\u4f4d\u4e3a 0\uff0c\u662f\u6b63\u6570 32764\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u6709\u7b26\u53f7\u65f6\uff1a<\/p>\n\n\n\n
y < x < z\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u662f D\u3002<\/p>\n\n\n\n
\u8fd9\u7c7b\u9898\u7684\u5173\u952e\u662f\uff1a\u540c\u4e00\u4e2a\u673a\u5668\u6570\uff0c\u6309\u65e0\u7b26\u53f7\u89e3\u91ca\u548c\u6309\u8865\u7801\u89e3\u91ca\uff0c\u6392\u5e8f\u7ed3\u679c\u53ef\u80fd\u5b8c\u5168\u4e0d\u540c\u3002\u6700\u9ad8\u4f4d\u4e3a 1 \u7684\u6570\uff0c\u5728\u65e0\u7b26\u53f7\u4e2d\u5f88\u5927\uff0c\u5728\u6709\u7b26\u53f7\u8865\u7801\u4e2d\u662f\u8d1f\u6570\u3002<\/p>\n\n\n\n
\n\n\n\n
33 \u9898<\/h2>\n\n\n\n
\u9898\u76ee\uff1a32 \u4f4d\u8865\u7801\u6240\u80fd\u8868\u793a\u7684\u6574\u6570\u8303\u56f4\u662f\uff1f<\/p>\n\n\n\n
n \u4f4d\u8865\u7801\u7684\u8868\u793a\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
-2<sup>n-1<\/sup> \u5230 2<sup>n-1<\/sup> - 1\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5 32 \u4f4d\u8865\u7801\u6574\u6570\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
-2<sup>31<\/sup> \u5230 2<sup>31<\/sup> - 1\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u662f B\u3002<\/p>\n\n\n\n
\u8fd9\u91cc\u6ce8\u610f\u8865\u7801\u8303\u56f4\u4e0d\u662f\u5bf9\u79f0\u7684\uff0c\u8d1f\u6570\u6bd4\u6b63\u6570\u591a\u4e00\u4e2a\u3002\u539f\u56e0\u662f\u8865\u7801\u4e2d 1000...0000<\/code> \u8868\u793a\u6700\u5c0f\u8d1f\u6570 -2<sup>n-1<\/sup><\/code>\uff0c\u6ca1\u6709\u5bf9\u5e94\u7684\u6b63\u6570 +2<sup>n-1<\/sup><\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
34 \u9898<\/h2>\n\n\n\n
\u4ee3\u7801\uff1a<\/p>\n\n\n\n
short si = -32767;\nunsigned int ui = si;\n<\/code><\/pre>\n\n\n\n
\u8fd9\u662f 2025 \u5e74\u7edf\u8003\u771f\u9898\uff0c\u91cd\u70b9\u5728\u4e8e\u533a\u5206\u5b83\u548c\u7b2c 29 \u9898\u3002<\/p>\n\n\n\n
\u7b2c 29 \u9898\u662f\uff1a<\/p>\n\n\n\n
short -> unsigned short\n<\/code><\/pre>\n\n\n\n
\u76ee\u6807\u7c7b\u578b\u8fd8\u662f 16 \u4f4d\u3002<\/p>\n\n\n\n
\u800c\u672c\u9898\u662f\uff1a<\/p>\n\n\n\n
short -> unsigned int\n<\/code><\/pre>\n\n\n\n
\u76ee\u6807\u7c7b\u578b\u662f 32 \u4f4d\u65e0\u7b26\u53f7\u6574\u6570\u3002<\/p>\n\n\n\n
si = -32767<\/code>\uff0c\u5b83\u4f5c\u4e3a 16 \u4f4d short \u7684\u8865\u7801\u662f\uff1a<\/p>\n\n\n\n
0x8001\n<\/code><\/pre>\n\n\n\n
\u4f46\u662f\u8d4b\u503c\u7ed9 32 \u4f4d unsigned int<\/code> \u65f6\uff0c\u4e0d\u80fd\u7b80\u5355\u628a 0x8001<\/code> \u96f6\u6269\u5c55\u6210 0x00008001<\/code>\u3002\u56e0\u4e3a\u6e90\u64cd\u4f5c\u6570\u662f\u6709\u7b26\u53f7 short\uff0c\u503c\u662f -32767<\/code>\u3002<\/p>\n\n\n\n
\u8d1f\u7684\u6709\u7b26\u53f7\u6574\u6570\u8f6c\u6362\u4e3a\u65e0\u7b26\u53f7\u6574\u6570\u65f6\uff0c\u6309\u6a21 232 \u8f6c\u6362\uff1a<\/p>\n\n\n\n
ui = 2<sup>32<\/sup> - 32767\n<\/code><\/pre>\n\n\n\n
\u800c\uff1a<\/p>\n\n\n\n
32767 = 2<sup>15<\/sup> - 1\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
ui = 2<sup>32<\/sup> - (2<sup>15<\/sup> - 1)\n   = 2<sup>32<\/sup> - 2<sup>15<\/sup> + 1\n<\/code><\/pre>\n\n\n\n
\u7b54\u6848\u662f D\u3002<\/p>\n\n\n\n
\u4e5f\u53ef\u4ee5\u4ece\u673a\u5668\u6570\u89d2\u5ea6\u7406\u89e3\uff1a<\/p>\n\n\n\n
short si = -32767\n16 \u4f4d\u8865\u7801\uff1a0x8001\n\n\u4f5c\u4e3a\u6709\u7b26\u53f7\u6570\u6269\u5c55\u5230 32 \u4f4d\uff1a\n0xFFFF8001\n\n\u518d\u4f5c\u4e3a unsigned int \u89e3\u91ca\uff1a\n0xFFFF8001 = 2<sup>32<\/sup> - 32767\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u7ed3\u679c\u662f\uff1a<\/p>\n\n\n\n
2<sup>32<\/sup> - 2<sup>15<\/sup> + 1\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u8fd9\u7ec4\u9898\u7684\u7edf\u4e00\u505a\u6cd5<\/h2>\n\n\n\n
\u9047\u5230\u8fd9\u7c7b\u9898\uff0c\u5148\u4e0d\u8981\u6025\u7740\u7b97\u5341\u8fdb\u5236\uff0c\u5efa\u8bae\u56fa\u5b9a\u6309\u4e0b\u9762\u987a\u5e8f\u5224\u65ad\uff1a<\/p>\n\n\n\n
\u7b2c\u4e00\u6b65\uff0c\u770b\u7c7b\u578b\u6216\u9898\u5e72\u8bf4\u660e\u662f\u6709\u7b26\u53f7\u8fd8\u662f\u65e0\u7b26\u53f7\u3002\u8865\u7801\u6574\u6570\u3001short<\/code>\u3001int<\/code> \u901a\u5e38\u6309\u6709\u7b26\u53f7\u8865\u7801\u89e3\u91ca\uff1bunsigned short<\/code>\u3001unsigned int<\/code> \u6309\u65e0\u7b26\u53f7\u89e3\u91ca\u3002<\/p>\n\n\n\n
\u7b2c\u4e8c\u6b65\uff0c\u770b\u4f4d\u6570\u300216 \u4f4d\u548c 32 \u4f4d\u662f\u8fd9\u7ec4\u9898\u7684\u6838\u5fc3\u300216 \u4f4d\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
\u6709\u7b26\u53f7 short\uff1a-32768 \u5230 32767\n\u65e0\u7b26\u53f7 short\uff1a0 \u5230 65535\n<\/code><\/pre>\n\n\n\n
32 \u4f4d\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
\u6709\u7b26\u53f7 int\uff1a-2<sup>31<\/sup> \u5230 2<sup>31<\/sup> - 1\n\u65e0\u7b26\u53f7 int\uff1a0 \u5230 2<sup>32<\/sup> - 1\n<\/code><\/pre>\n\n\n\n
\u7b2c\u4e09\u6b65\uff0c\u770b\u662f\u5426\u53d1\u751f\u6269\u5c55\u3002\u89c4\u5219\u662f\uff1a<\/p>\n\n\n\n
\u6709\u7b26\u53f7\u8865\u7801\u6269\u5c55\uff1a\u7b26\u53f7\u6269\u5c55\uff0c\u6b63\u6570\u9ad8\u4f4d\u8865 0\uff0c\u8d1f\u6570\u9ad8\u4f4d\u8865 1\n\u65e0\u7b26\u53f7\u6570\u6269\u5c55\uff1a\u96f6\u6269\u5c55\uff0c\u9ad8\u4f4d\u8865 0\n<\/code><\/pre>\n\n\n\n
\u7b2c\u56db\u6b65\uff0c\u770b\u662f\u5426\u53d1\u751f\u6709\u7b26\u53f7\/\u65e0\u7b26\u53f7\u8f6c\u6362\u3002\u540c\u4e00\u4e32\u673a\u5668\u6570\uff0c\u5982\u679c\u6309\u4e0d\u540c\u7c7b\u578b\u89e3\u91ca\uff0c\u6570\u503c\u4e0d\u540c\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n
0xFFFF \u4f5c\u4e3a unsigned short \u662f 65535\n0xFFFF \u4f5c\u4e3a signed short \u662f -1\n<\/code><\/pre>\n\n\n\n
\u6700\u540e\u7279\u522b\u6ce8\u610f\u7b2c 34 \u9898\u8fd9\u79cd\u8003\u6cd5\uff1a\u8d1f\u7684\u6709\u7b26\u53f7\u6570\u8f6c\u6362\u4e3a\u66f4\u957f\u7684\u65e0\u7b26\u53f7\u6570\uff0c\u4e0d\u662f\u628a\u539f 16 \u4f4d\u673a\u5668\u6570\u76f4\u63a5\u96f6\u6269\u5c55\uff0c\u800c\u662f\u6309\u76ee\u6807\u65e0\u7b26\u53f7\u7c7b\u578b\u7684\u6a21\u6570\u8f6c\u6362\u3002\u4e5f\u5c31\u662f\uff1a<\/p>\n\n\n\n
-32767 \u8f6c unsigned int = 2<sup>32<\/sup> - 32767\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4ece27\u9898\u5f00\u59cb\u7ed9\u4e00\u4e2a\u6570\uff0c\u7136\u540e\u5f97\u5230\u4e86\u4e00\u4e2a16\u8fdb\u5236\u6570\uff0c\u4f46\u662f\u4f60\u662f\u53c8\u5982\u4f55\u6c42\u5b83\u7684\u4e8c\u8fdb\u5236\uff0c\u4ee5\u786e\u5b9a\u9996\u4f4d\u6570\u5b57\u662f\u96f6\u8fd8\u662f\u4e00\uff1f\uff0c\u5982\u4f55\u5feb\u901f\u7684\u901a\u8fc7\u8fd9\u4e2a\u5341\u8fdb\u5236\u523016\u8fdb\u5236\u52302\u8fdb\u5236\u7684\u8f6c\u6362\uff1f<\/p>\n\n\n\n
\u5173\u952e\u70b9\u662f\uff1a\u5341\u516d\u8fdb\u5236\u548c\u4e8c\u8fdb\u5236\u4e4b\u95f4\u4e0d\u9700\u8981\u91cd\u65b0\u8ba1\u7b97<\/strong>\u3002\u56e0\u4e3a 1 \u4f4d\u5341\u516d\u8fdb\u5236\u6b63\u597d\u5bf9\u5e94 4 \u4f4d\u4e8c\u8fdb\u5236\u3002<\/p>\n\n\n\n
1 \u4e2a\u5341\u516d\u8fdb\u5236\u4f4d = 4 \u4e2a\u4e8c\u8fdb\u5236\u4f4d\n\n0xF = 1111\n0xA = 1010\n0x8 = 1000\n0x7 = 0111\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u4ece\u5341\u516d\u8fdb\u5236\u5224\u65ad\u4e8c\u8fdb\u5236\u6700\u9ad8\u4f4d\u662f\u4e0d\u662f 1\uff0c\u901a\u5e38\u53ea\u770b\u6700\u9ad8\u7684\u90a3\u4e2a\u5341\u516d\u8fdb\u5236\u4f4d<\/strong>\u5373\u53ef\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e00\u3001\u5148\u8bb0\u4f4f\u5341\u516d\u8fdb\u5236\u548c\u4e8c\u8fdb\u5236\u7684\u56fa\u5b9a\u5bf9\u5e94\u8868<\/h2>\n\n\n\n
\u8fd9\u4e2a\u8868\u5fc5\u987b\u719f\u7ec3\uff1a<\/p>\n\n\n\n
0 = 0000\n1 = 0001\n2 = 0010\n3 = 0011\n4 = 0100\n5 = 0101\n6 = 0110\n7 = 0111\n\n8 = 1000\n9 = 1001\nA = 1010\nB = 1011\nC = 1100\nD = 1101\nE = 1110\nF = 1111\n<\/code><\/pre>\n\n\n\n
\u56e0\u6b64\u5224\u65ad\u6700\u9ad8\u4f4d\u662f\u5426\u4e3a 1 \u7684\u6700\u5feb\u65b9\u6cd5\u662f\uff1a<\/p>\n\n\n\n
\u6700\u9ad8\u5341\u516d\u8fdb\u5236\u4f4d\u662f 0 ~ 7 \uff1a\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\u662f 0\n\u6700\u9ad8\u5341\u516d\u8fdb\u5236\u4f4d\u662f 8 ~ F \uff1a\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\u662f 1\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
0x7FFF \u7684\u6700\u9ad8\u5341\u516d\u8fdb\u5236\u4f4d\u662f 7\n\u6240\u4ee5\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\u662f 0\n\n0x8001 \u7684\u6700\u9ad8\u5341\u516d\u8fdb\u5236\u4f4d\u662f 8\n\u6240\u4ee5\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\u662f 1\n\n0xFFFA \u7684\u6700\u9ad8\u5341\u516d\u8fdb\u5236\u4f4d\u662f F\n\u6240\u4ee5\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\u662f 1\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e8c\u3001\u5fc5\u987b\u5148\u786e\u5b9a\u201c\u4f4d\u6570\u201d\uff0c\u518d\u770b\u6700\u9ad8\u4f4d<\/h2>\n\n\n\n
\u8fd9\u662f\u8003\u7814\u9898\u91cc\u6700\u5bb9\u6613\u9519\u7684\u5730\u65b9\u3002<\/p>\n\n\n\n
\u5982\u679c\u9898\u76ee\u8bf4\u662f 16 \u4f4d\uff0c\u90a3\u4e48\u5c31\u5e94\u8be5\u5199\u6210 4 \u4f4d\u5341\u516d\u8fdb\u5236\u6570\uff1a<\/p>\n\n\n\n
16 \u4f4d = 4 \u4e2a\u5341\u516d\u8fdb\u5236\u4f4d\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u9898\u76ee\u8bf4\u662f 32 \u4f4d\uff0c\u90a3\u4e48\u5c31\u5e94\u8be5\u5199\u6210 8 \u4f4d\u5341\u516d\u8fdb\u5236\u6570\uff1a<\/p>\n\n\n\n
32 \u4f4d = 8 \u4e2a\u5341\u516d\u8fdb\u5236\u4f4d\n<\/code><\/pre>\n\n\n\n
\u4f8b\u5982\uff1a<\/p>\n\n\n\n
0x7FA\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u4f5c\u4e3a\u666e\u901a\u5341\u516d\u8fdb\u5236\u6570\uff0c\u5b83\u6700\u9ad8\u4f4d\u662f 7\u3002<\/p>\n\n\n\n
\u4f46\u5982\u679c\u9898\u76ee\u8bf4\u5b83\u662f 16 \u4f4d\u673a\u5668\u6570\uff0c\u5c31\u5e94\u8be5\u8865\u6210\uff1a<\/p>\n\n\n\n
0x07FA\n<\/code><\/pre>\n\n\n\n
\u8fd9\u65f6\u6700\u9ad8\u5341\u516d\u8fdb\u5236\u4f4d\u662f 0\uff0c\u6240\u4ee5\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\u662f 0\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u5224\u65ad\u8865\u7801\u6b63\u8d1f\u65f6\uff0c\u4e0d\u662f\u968f\u4fbf\u770b\u6700\u5de6\u8fb9\u90a3\u4e2a\u975e\u96f6\u5341\u516d\u8fdb\u5236\u4f4d\uff0c\u800c\u662f\u8981\u770b\u56fa\u5b9a\u4f4d\u6570\u4e0b\u7684\u6700\u9ad8\u4f4d<\/strong>\u3002<\/p>\n\n\n\n
\u5e38\u89c1\u4f4d\u6570\u5bf9\u5e94\u5173\u7cfb\uff1a<\/p>\n\n\n\n
8 \u4f4d  = 2 \u4e2a\u5341\u516d\u8fdb\u5236\u4f4d\n16 \u4f4d = 4 \u4e2a\u5341\u516d\u8fdb\u5236\u4f4d\n32 \u4f4d = 8 \u4e2a\u5341\u516d\u8fdb\u5236\u4f4d\n64 \u4f4d = 16 \u4e2a\u5341\u516d\u8fdb\u5236\u4f4d\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e09\u3001\u4ee5\u7b2c 27 \u9898\u4e3a\u4f8b\uff1a65530 \u600e\u4e48\u53d8\u6210 0xFFFA\uff1f<\/h2>\n\n\n\n
\u7b2c 27 \u9898\u662f\uff1a<\/p>\n\n\n\n
unsigned short x = 65530;\nunsigned int y = x;\n<\/code><\/pre>\n\n\n\n
unsigned short<\/code> \u662f 16 \u4f4d\u65e0\u7b26\u53f7\u6570\uff0c\u6240\u4ee5\u8303\u56f4\u662f\uff1a<\/p>\n\n\n\n
0 ~ 65535\n<\/code><\/pre>\n\n\n\n
\u800c\uff1a<\/p>\n\n\n\n
65535 = 0xFFFF\n65536 = 0x10000\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
65530 = 65536 - 6\n<\/code><\/pre>\n\n\n\n
\u4e5f\u5c31\u662f\uff1a<\/p>\n\n\n\n
0x10000 - 0x0006 = 0xFFFA\n<\/code><\/pre>\n\n\n\n
\u56e0\u6b64\uff1a<\/p>\n\n\n\n
65530 = 0xFFFA\n<\/code><\/pre>\n\n\n\n
\u518d\u628a 0xFFFA<\/code> \u8f6c\u6210\u4e8c\u8fdb\u5236\uff0c\u4e0d\u9700\u8981\u91cd\u65b0\u9664 2\uff0c\u53ea\u9700\u8981\u9010\u4f4d\u66ff\u6362\uff1a<\/p>\n\n\n\n
F    F    F    A\n1111 1111 1111 1010\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
0xFFFA = 1111 1111 1111 1010\n<\/code><\/pre>\n\n\n\n
\u6700\u9ad8\u4f4d\u662f 1\u3002<\/p>\n\n\n\n
\u4f46\u662f\u6ce8\u610f\uff0c\u8fd9\u91cc x<\/code> \u662f unsigned short<\/code>\uff0c\u867d\u7136\u673a\u5668\u6570\u6700\u9ad8\u4f4d\u662f 1\uff0c\u4f46\u5b83\u4e0d\u662f\u8d1f\u6570\u3002\u56e0\u4e3a\u65e0\u7b26\u53f7\u6570\u6ca1\u6709\u7b26\u53f7\u4f4d\uff0c0xFFFA<\/code> \u6309\u65e0\u7b26\u53f7\u89e3\u91ca\u5c31\u662f 65530\u3002<\/p>\n\n\n\n
\n\n\n\n
\u56db\u3001\u4e3a\u4ec0\u4e48 65530 \u53ef\u4ee5\u5feb\u901f\u770b\u6210 0xFFFA\uff1f<\/h2>\n\n\n\n
\u8003\u7814\u91cc\u5f88\u591a\u6570\u90fd\u9760\u8fd1\u8fb9\u754c\u503c\uff0c\u4e0d\u5efa\u8bae\u6bcf\u6b21\u90fd\u8001\u8001\u5b9e\u5b9e\u9664 16\u3002\u5e38\u7528\u8fb9\u754c\u8981\u8bb0\u4f4f\uff1a<\/p>\n\n\n\n
2^8  = 256    = 0x100\n2^15 = 32768  = 0x8000\n2^16 = 65536  = 0x10000\n2^31 = 2147483648 = 0x80000000\n2^32 = 4294967296 = 0x100000000\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
65535 = 2^16 - 1 = 0xFFFF\n65534 = 2^16 - 2 = 0xFFFE\n65533 = 2^16 - 3 = 0xFFFD\n65530 = 2^16 - 6 = 0xFFFA\n<\/code><\/pre>\n\n\n\n
\u56e0\u4e3a\uff1a<\/p>\n\n\n\n
0xFFFF - 5 = 0xFFFA\n<\/code><\/pre>\n\n\n\n
\u6216\u8005\uff1a<\/p>\n\n\n\n
0x10000 - 0x0006 = 0xFFFA\n<\/code><\/pre>\n\n\n\n
\u8fd9\u6bd4\u5341\u8fdb\u5236\u4e00\u6b65\u6b65\u8f6c\u6362\u5feb\u5f88\u591a\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e94\u3001\u666e\u901a\u5341\u8fdb\u5236\u8f6c\u5341\u516d\u8fdb\u5236\u7684\u65b9\u6cd5\uff1a\u9664 16 \u53d6\u4f59<\/h2>\n\n\n\n
\u5982\u679c\u4e0d\u662f\u9760\u8fd1\u8fb9\u754c\u7684\u6570\uff0c\u5c31\u7528\u9664 16 \u53d6\u4f59\u6cd5\u3002<\/p>\n\n\n\n
\u8fd8\u662f\u4ee5 65530 \u4e3a\u4f8b\uff1a<\/p>\n\n\n\n
65530 \u00f7 16 = 4095 \u4f59 10  -> A\n4095  \u00f7 16 = 255  \u4f59 15  -> F\n255   \u00f7 16 = 15   \u4f59 15  -> F\n15    \u00f7 16 = 0    \u4f59 15  -> F\n<\/code><\/pre>\n\n\n\n
\u4ece\u4e0b\u5f80\u4e0a\u8bfb\uff1a<\/p>\n\n\n\n
FFFA\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
65530 = 0xFFFA\n<\/code><\/pre>\n\n\n\n
\u4e0d\u8fc7\u5728\u8003\u7814\u9009\u62e9\u9898\u4e2d\uff0c\u66f4\u5e38\u7528\u7684\u662f\u8fb9\u754c\u6cd5\uff0c\u56e0\u4e3a\u9898\u76ee\u7ecf\u5e38\u56f4\u7ed5 32767<\/code>\u300132768<\/code>\u300165535<\/code>\u300165536<\/code>\u3001-1<\/code>\u3001-32768<\/code> \u8fd9\u4e9b\u6570\u8bbe\u8ba1\u3002<\/p>\n\n\n\n
\n\n\n\n
\u516d\u3001\u5224\u65ad\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\u7684\u6700\u5feb\u89c4\u5219<\/h2>\n\n\n\n
1. 16 \u4f4d\u6570<\/h3>\n\n\n\n
16 \u4f4d\u6570\u5199\u6210 4 \u4f4d\u5341\u516d\u8fdb\u5236\uff1a<\/p>\n\n\n\n
0x0000 ~ 0x7FFF \uff1a\u6700\u9ad8\u4f4d\u4e3a 0\n0x8000 ~ 0xFFFF \uff1a\u6700\u9ad8\u4f4d\u4e3a 1\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\uff1a<\/p>\n\n\n\n
0x7FFF \u6700\u9ad8\u4f4d\u662f 0\n0x8000 \u6700\u9ad8\u4f4d\u662f 1\n0x8001 \u6700\u9ad8\u4f4d\u662f 1\n0xFFFA \u6700\u9ad8\u4f4d\u662f 1\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u6309 16 \u4f4d\u8865\u7801\u89e3\u91ca\uff1a<\/p>\n\n\n\n
0x0000 ~ 0x7FFF \u8868\u793a\u975e\u8d1f\u6570\n0x8000 ~ 0xFFFF \u8868\u793a\u8d1f\u6570\n<\/code><\/pre>\n\n\n\n
2. 32 \u4f4d\u6570<\/h3>\n\n\n\n
32 \u4f4d\u6570\u5199\u6210 8 \u4f4d\u5341\u516d\u8fdb\u5236\uff1a<\/p>\n\n\n\n
0x00000000 ~ 0x7FFFFFFF \uff1a\u6700\u9ad8\u4f4d\u4e3a 0\n0x80000000 ~ 0xFFFFFFFF \uff1a\u6700\u9ad8\u4f4d\u4e3a 1\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u6309 32 \u4f4d\u8865\u7801\u89e3\u91ca\uff1a<\/p>\n\n\n\n
0x00000000 ~ 0x7FFFFFFF \u8868\u793a\u975e\u8d1f\u6570\n0x80000000 ~ 0xFFFFFFFF \u8868\u793a\u8d1f\u6570\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u4e03\u3001\u51e0\u4e2a\u5e38\u89c1\u6570\u8981\u5f62\u6210\u6761\u4ef6\u53cd\u5c04<\/h2>\n\n\n\n
1. 32767<\/code><\/h3>\n\n\n\n
32767 = 2^15 - 1 = 0x7FFF\n<\/code><\/pre>\n\n\n\n
16 \u4f4d\u4e8c\u8fdb\u5236\u662f\uff1a<\/p>\n\n\n\n
0111 1111 1111 1111\n<\/code><\/pre>\n\n\n\n
\u6700\u9ad8\u4f4d\u662f 0\uff0c\u662f 16 \u4f4d\u8865\u7801\u6700\u5927\u6b63\u6570\u3002<\/p>\n\n\n\n
\n\n\n\n
2. 32768<\/code><\/h3>\n\n\n\n
32768 = 2^15 = 0x8000\n<\/code><\/pre>\n\n\n\n
16 \u4f4d\u4e8c\u8fdb\u5236\u662f\uff1a<\/p>\n\n\n\n
1000 0000 0000 0000\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u6309\u65e0\u7b26\u53f7\u6570\u89e3\u91ca\uff0c\u5b83\u662f 32768\u3002<\/p>\n\n\n\n
\u5982\u679c\u6309 16 \u4f4d\u8865\u7801\u89e3\u91ca\uff0c\u5b83\u662f\uff1a<\/p>\n\n\n\n
-32768\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
3. 65535<\/code><\/h3>\n\n\n\n
65535 = 2^16 - 1 = 0xFFFF\n<\/code><\/pre>\n\n\n\n
16 \u4f4d\u4e8c\u8fdb\u5236\u662f\uff1a<\/p>\n\n\n\n
1111 1111 1111 1111\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u6309\u65e0\u7b26\u53f7\u6570\u89e3\u91ca\uff1a<\/p>\n\n\n\n
65535\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u6309 16 \u4f4d\u8865\u7801\u89e3\u91ca\uff1a<\/p>\n\n\n\n
-1\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
4. 65530<\/code><\/h3>\n\n\n\n
65530 = 2^16 - 6 = 0xFFFA\n<\/code><\/pre>\n\n\n\n
16 \u4f4d\u4e8c\u8fdb\u5236\u662f\uff1a<\/p>\n\n\n\n
1111 1111 1111 1010\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u6309\u65e0\u7b26\u53f7\u6570\u89e3\u91ca\uff1a<\/p>\n\n\n\n
65530\n<\/code><\/pre>\n\n\n\n
\u5982\u679c\u6309 16 \u4f4d\u8865\u7801\u89e3\u91ca\uff1a<\/p>\n\n\n\n
-6\n<\/code><\/pre>\n\n\n\n
\u56e0\u4e3a\uff1a<\/p>\n\n\n\n
0xFFFA = 2^16 - 6\n<\/code><\/pre>\n\n\n\n
\u5728 16 \u4f4d\u8865\u7801\u4e2d\uff0c2^16 - 6<\/code> \u5bf9\u5e94\u7684\u5c31\u662f -6<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
\u516b\u3001\u518d\u770b\u7b2c 27 \u9898\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u56e0\u4e3a\u6700\u9ad8\u4f4d\u662f 1 \u5c31\u5f53\u8d1f\u6570<\/h2>\n\n\n\n
\u7b2c 27 \u9898\u91cc\uff1a<\/p>\n\n\n\n
unsigned short x = 65530;\n<\/code><\/pre>\n\n\n\n
x<\/code> \u7684\u673a\u5668\u6570\u662f\uff1a<\/p>\n\n\n\n
0xFFFA\n<\/code><\/pre>\n\n\n\n
\u4e8c\u8fdb\u5236\u662f\uff1a<\/p>\n\n\n\n
1111 1111 1111 1010\n<\/code><\/pre>\n\n\n\n
\u6700\u9ad8\u4f4d\u786e\u5b9e\u662f 1\u3002<\/p>\n\n\n\n
\u4f46\u5b83\u7684\u7c7b\u578b\u662f\uff1a<\/p>\n\n\n\n
unsigned short\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u5b83\u662f\u65e0\u7b26\u53f7\u6570\uff0c\u4e0d\u5b58\u5728\u201c\u7b26\u53f7\u4f4d\u201d\u3002\u56e0\u6b64\uff1a<\/p>\n\n\n\n
0xFFFA \u6309 unsigned short \u89e3\u91ca = 65530\n<\/code><\/pre>\n\n\n\n
\u7136\u540e\u8d4b\u503c\u7ed9\uff1a<\/p>\n\n\n\n
unsigned int y = x;\n<\/code><\/pre>\n\n\n\n
\u6e90\u7c7b\u578b\u662f\u65e0\u7b26\u53f7\u6570\uff0c\u6269\u5c55\u5230 32 \u4f4d\u65f6\u91c7\u7528\u96f6\u6269\u5c55\uff1a<\/p>\n\n\n\n
16 \u4f4d\uff1a0xFFFA\n32 \u4f4d\uff1a0x0000FFFA\n<\/code><\/pre>\n\n\n\n
\u6240\u4ee5\u7b2c 27 \u9898\u7b54\u6848\u662f\uff1a<\/p>\n\n\n\n
0x0000FFFA\n<\/code><\/pre>\n\n\n\n
\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u867d\u7136 0xFFFA<\/code> \u7684\u6700\u9ad8\u4f4d\u662f 1\uff0c\u4f46\u4e0d\u80fd\u7b26\u53f7\u6269\u5c55\u6210 0xFFFFFFFA<\/code>\u3002<\/p>\n\n\n\n
\n\n\n\n
\u4e5d\u3001\u505a\u9898\u65f6\u7684\u5feb\u901f\u6d41\u7a0b<\/h2>\n\n\n\n
\u8fd9\u7c7b\u9898\u5efa\u8bae\u6309\u8fd9\u4e2a\u987a\u5e8f\uff1a<\/p>\n\n\n\n
\u7b2c\u4e00\u6b65\uff1a\u770b\u7c7b\u578b\nsigned \u8fd8\u662f unsigned\uff1f\n\n\u7b2c\u4e8c\u6b65\uff1a\u770b\u4f4d\u6570\nshort \u662f 16 \u4f4d\uff0cint \u662f 32 \u4f4d\u3002\n\n\u7b2c\u4e09\u6b65\uff1a\u628a\u6570\u5199\u6210\u5bf9\u5e94\u4f4d\u6570\u7684\u5341\u516d\u8fdb\u5236\n16 \u4f4d\u5199 4 \u4e2a\u5341\u516d\u8fdb\u5236\u4f4d\uff0c32 \u4f4d\u5199 8 \u4e2a\u5341\u516d\u8fdb\u5236\u4f4d\u3002\n\n\u7b2c\u56db\u6b65\uff1a\u5982\u679c\u9700\u8981\u5224\u65ad\u8865\u7801\u6b63\u8d1f\uff0c\u770b\u6700\u9ad8\u5341\u516d\u8fdb\u5236\u4f4d\n0~7\uff1a\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\u4e3a 0\n8~F\uff1a\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\u4e3a 1\n\n\u7b2c\u4e94\u6b65\uff1a\u5982\u679c\u53d1\u751f\u6269\u5c55\n\u65e0\u7b26\u53f7\u6570\u6269\u5c55\uff1a\u9ad8\u4f4d\u8865 0\n\u6709\u7b26\u53f7\u8865\u7801\u6269\u5c55\uff1a\u6309\u7b26\u53f7\u4f4d\u6269\u5c55\uff0c\u6b63\u6570\u8865 0\uff0c\u8d1f\u6570\u8865 1\n<\/code><\/pre>\n\n\n\n
\u6700\u5173\u952e\u7684\u4e00\u53e5\u8bdd\u662f\uff1a<\/p>\n\n\n\n
\u5341\u516d\u8fdb\u5236\u6bcf\u4e00\u4f4d\u76f4\u63a5\u5bf9\u5e94 4 \u4f4d\u4e8c\u8fdb\u5236\uff1b\n\u5224\u65ad\u6700\u9ad8\u4e8c\u8fdb\u5236\u4f4d\uff0c\u53ea\u770b\u56fa\u5b9a\u4f4d\u6570\u4e0b\u6700\u9ad8\u5341\u516d\u8fdb\u5236\u4f4d\u662f\u5426\u5728 8~F\u3002\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u771f\u6570\u662f\u4eba\u80fd\u7406\u89e3\u7684\u6570\u503c\uff0c\u673a\u5668\u6570\u662f\u8ba1\u7b97\u673a\u5185\u90e8\u6309\u56fa\u5b9a\u89c4\u5219\u7f16\u7801\u540e\u7684 0\/1 \u4e32\uff1b\u539f\u7801\u3001\u53cd\u7801\u3001\u8865\u7801\u3001\u79fb\u7801\u90fd\u662f\u6709\u7b26\u53f7\u6570\u7684\u673a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54],"tags":[],"class_list":["post-2309","post","type-post","status-publish","format-standard","hentry","category-text"],"_links":{"self":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/comments?post=2309"}],"version-history":[{"count":3,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2309\/revisions"}],"predecessor-version":[{"id":2316,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2309\/revisions\/2316"}],"wp:attachment":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=2309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=2309"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=2309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}