{"id":2026,"date":"2026-04-20T12:29:33","date_gmt":"2026-04-20T04:29:33","guid":{"rendered":"http:\/\/www.preluna.xyz\/?p=2026"},"modified":"2026-04-20T12:30:05","modified_gmt":"2026-04-20T04:30:05","slug":"%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%92%8c%e5%88%97%e8%a1%a8%e7%9c%8b%e8%b5%b7%e6%9d%a5%e5%be%88%e5%83%8f%ef%bc%8c%e4%bd%86%e6%9c%ac%e8%b4%a8%e4%b8%8a%e4%b8%8d%e4%b8%80%e6%a0%b7","status":"publish","type":"post","link":"http:\/\/www.preluna.xyz\/index.php\/2026\/04\/20\/%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%92%8c%e5%88%97%e8%a1%a8%e7%9c%8b%e8%b5%b7%e6%9d%a5%e5%be%88%e5%83%8f%ef%bc%8c%e4%bd%86%e6%9c%ac%e8%b4%a8%e4%b8%8a%e4%b8%8d%e4%b8%80%e6%a0%b7\/preluna\/text\/","title":{"rendered":"\u5b57\u7b26\u4e32\u548c\u5217\u8868\u770b\u8d77\u6765\u5f88\u50cf\uff0c\u4f46\u672c\u8d28\u4e0a\u4e0d\u4e00\u6837"},"content":{"rendered":"\n<p>\u8fd9\u4e2a\u89c2\u5bdf\u5176\u5b9e\u5f88\u91cd\u8981\uff1a<code>str<\/code> \u5b57\u7b26\u4e32\u548c <code>list<\/code> \u5217\u8868\uff0c<strong>\u90fd\u652f\u6301\u7d22\u5f15<\/strong>\uff0c\u90fd\u80fd\u7528\u4e0b\u6807\u53bb\u53d6\u67d0\u4e2a\u4f4d\u7f6e\u7684\u5185\u5bb9\uff0c\u770b\u8d77\u6765\u786e\u5b9e\u5f88\u50cf\u3002<br>\u4f46\u662f\u5b83\u4eec\u6709\u4e00\u4e2a\u975e\u5e38\u5173\u952e\u7684\u533a\u522b\uff1a<\/p>\n\n\n\n<p><strong>\u5b57\u7b26\u4e32\u662f\u4e0d\u53ef\u53d8\u7c7b\u578b\uff08immutable\uff09<\/strong>\uff0c\u5217\u8868\u662f<strong>\u53ef\u53d8\u7c7b\u578b\uff08mutable\uff09<\/strong>\u3002<\/p>\n\n\n\n<p>\u8fd9\u53e5\u8bdd\u5c31\u662f\u5b83\u4eec\u6700\u6838\u5fc3\u7684\u5dee\u522b\u3002<\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b57\u7b26\u4e32\u91cc\u7684\u67d0\u4e2a\u5b57\u7b26\uff0c\u53ef\u4ee5\u53d6\u51fa\u6765\u770b<\/li>\n\n\n\n<li>\u4f46\u662f\u4e0d\u80fd\u76f4\u63a5\u6539\u5176\u4e2d\u67d0\u4e00\u4e2a\u4f4d\u7f6e<\/li>\n\n\n\n<li>\u5217\u8868\u91cc\u7684\u67d0\u4e2a\u5143\u7d20\uff0c\u4e0d\u4f46\u53ef\u4ee5\u770b\uff0c\u8fd8\u53ef\u4ee5\u76f4\u63a5\u6539<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\u4f60\u4f1a\u611f\u89c9\u5b83\u4eec\u201c\u8868\u9762\u50cf\u201d\uff0c\u4f46\u771f\u6b63\u5199\u4ee3\u7801\u65f6\uff0c\u884c\u4e3a\u5dee\u5f88\u591a\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5148\u770b\u5b83\u4eec\u76f8\u540c\u7684\u5730\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u90fd\u53ef\u4ee5\u7528\u7d22\u5f15\u53d6\u503c<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>name = \"hello\"\nnums = &#91;10, 20, 30]\n\nprint(name&#91;0])\nprint(nums&#91;0])\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>h\n10\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>\"hello\"<\/code> \u7684\u7b2c 0 \u4e2a\u4f4d\u7f6e\u662f <code>\"h\"<\/code><\/li>\n\n\n\n<li><code>[10, 20, 30]<\/code> \u7684\u7b2c 0 \u4e2a\u4f4d\u7f6e\u662f <code>10<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c<strong>\u5b57\u7b26\u4e32\u548c\u5217\u8868\u90fd\u5c5e\u4e8e\u201c\u5e8f\u5217\u201d<\/strong>\uff0c\u90fd\u53ef\u4ee5\u6309\u4f4d\u7f6e\u8bbf\u95ee\u5185\u5bb9\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u90fd\u53ef\u4ee5\u5207\u7247<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>name = \"hello\"\nnums = &#91;10, 20, 30, 40]\n\nprint(name&#91;1:4])\nprint(nums&#91;1:3])\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ell\n&#91;20, 30]\n<\/code><\/pre>\n\n\n\n<p>\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b57\u7b26\u4e32\u5207\u7247\uff0c\u5f97\u5230\u7684\u8fd8\u662f\u5b57\u7b26\u4e32<\/li>\n\n\n\n<li>\u5217\u8868\u5207\u7247\uff0c\u5f97\u5230\u7684\u8fd8\u662f\u5217\u8868<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u90fd\u53ef\u4ee5\u7528 <code>for<\/code> \u5faa\u73af\u904d\u5386<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>name = \"abc\"\nnums = &#91;1, 2, 3]\n\nfor ch in name:\n    print(ch)\n\nfor x in nums:\n    print(x)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e5f\u8bf4\u660e\u5b83\u4eec\u5728\u201c\u6309\u987a\u5e8f\u5b58\u653e\u591a\u4e2a\u5185\u5bb9\u201d\u8fd9\u4ef6\u4e8b\u4e0a\u5f88\u76f8\u4f3c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b83\u4eec\u6700\u5173\u952e\u7684\u533a\u522b\uff1a\u80fd\u4e0d\u80fd\u6539<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b57\u7b26\u4e32\u4e0d\u80fd\u8fd9\u6837\u6539<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>name = \"hello\"\nname&#91;0] = \"H\"\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u6bb5\u4ee3\u7801\u4f1a\u62a5\u9519\u3002<\/p>\n\n\n\n<p>\u539f\u56e0\u4e0d\u662f\u4f60\u7d22\u5f15\u5199\u9519\u4e86\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u5b57\u7b26\u4e32\u4e00\u65e6\u521b\u5efa\u597d\uff0c\u91cc\u9762\u7684\u5b57\u7b26\u5c31\u4e0d\u80fd\u539f\u5730\u4fee\u6539\u3002<\/strong><\/p>\n\n\n\n<p>\u4f60\u53ea\u80fd\u201c\u91cd\u65b0\u751f\u6210\u4e00\u4e2a\u65b0\u5b57\u7b26\u4e32\u201d\uff0c\u4e0d\u80fd\u76f4\u63a5\u628a\u539f\u6765\u7684\u67d0\u4e00\u4e2a\u4f4d\u7f6e\u6539\u6389\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\u60f3\u628a <code>\"hello\"<\/code> \u53d8\u6210 <code>\"Hello\"<\/code>\uff0c\u8981\u8fd9\u6837\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>name = \"hello\"\nname = \"H\" + name&#91;1:]\nprint(name)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Hello\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u4e0d\u662f\u201c\u6539\u539f\u5b57\u7b26\u4e32\u91cc\u9762\u7684\u7b2c 0 \u4e2a\u5b57\u7b26\u201d\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u53d6\u51fa <code>\"H\"<\/code><\/li>\n\n\n\n<li>\u518d\u53d6\u51fa\u539f\u5b57\u7b26\u4e32\u540e\u9762\u7684 <code>\"ello\"<\/code><\/li>\n\n\n\n<li>\u62fc\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32 <code>\"Hello\"<\/code><\/li>\n\n\n\n<li>\u518d\u8ba9\u53d8\u91cf <code>name<\/code> \u6307\u5411\u8fd9\u4e2a\u65b0\u5b57\u7b26\u4e32<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5217\u8868\u53ef\u4ee5\u76f4\u63a5\u6539<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>nums = &#91;10, 20, 30]\nnums&#91;0] = 99\nprint(nums)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;99, 20, 30]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u8bf4\u660e\u5217\u8868\u91cc\u9762\u7684\u5143\u7d20\uff0c\u662f\u53ef\u4ee5\u76f4\u63a5\u4fee\u6539\u7684\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u4f60\u53ef\u4ee5\u628a\u5217\u8868\u7406\u89e3\u6210\uff1a<\/p>\n\n\n\n<p><strong>\u4e00\u4e2a\u53ef\u4ee5\u968f\u65f6\u589e\u5220\u6539\u7684\u201c\u53ef\u53d8\u5bb9\u5668\u201d<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7528\u6700\u76f4\u767d\u7684\u8bdd\u533a\u5206\u4e00\u4e0b<\/h2>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u5148\u8fd9\u6837\u8bb0\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b57\u7b26\u4e32<\/strong>\uff1a\u66f4\u50cf\u201c\u4e00\u6574\u6bb5\u6587\u5b57\u201d\uff0c\u901a\u5e38\u7528\u6765\u8868\u793a\u6587\u672c\u5185\u5bb9<\/li>\n\n\n\n<li><strong>\u5217\u8868<\/strong>\uff1a\u66f4\u50cf\u201c\u4e00\u4e2a\u76d2\u5b50\uff0c\u91cc\u9762\u653e\u5f88\u591a\u4e1c\u897f\u201d\uff0c\u901a\u5e38\u7528\u6765\u5b58\u591a\u4e2a\u6570\u636e<\/li>\n<\/ul>\n\n\n\n<p>\u867d\u7136\u5b57\u7b26\u4e32\u770b\u8d77\u6765\u4e5f\u50cf\u201c\u88c5\u4e86\u5f88\u591a\u5b57\u7b26\u201d\uff0c\u4f46 Python \u628a\u5b83\u5f53\u4f5c\u201c\u6587\u672c\u201d\u6765\u5904\u7406\uff0c\u6240\u4ee5\u5b83\u4e0d\u5141\u8bb8\u4f60\u968f\u4fbf\u6539\u67d0\u4e2a\u5b57\u7b26\u3002<br>\u800c\u5217\u8868\u672c\u6765\u5c31\u662f\u4e3a\u4e86\u5b58\u591a\u4e2a\u5143\u7d20\u5e76\u65b9\u4fbf\u4fee\u6539\u800c\u8bbe\u8ba1\u7684\uff0c\u6240\u4ee5\u5b83\u80fd\u6539\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b83\u4eec\u5408\u5e76\u7684\u65f6\u5019\u4e5f\u6709\u76f8\u4f3c\u70b9\uff0c\u4f46\u7ed3\u679c\u4e0d\u540c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b57\u7b26\u4e32\u5408\u5e76<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>a = \"hello\"\nb = \"world\"\nprint(a + b)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>helloworld\n<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u60f3\u4e2d\u95f4\u6709\u7a7a\u683c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>print(a + \" \" + b)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hello world\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u7684 <code>+<\/code> \u662f<strong>\u5b57\u7b26\u4e32\u62fc\u63a5<\/strong>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5217\u8868\u5408\u5e76<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>a = &#91;1, 2]\nb = &#91;3, 4]\nprint(a + b)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;1, 2, 3, 4]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u7684 <code>+<\/code> \u662f<strong>\u628a\u4e24\u4e2a\u5217\u8868\u8fde\u63a5\u8d77\u6765<\/strong>\uff0c\u5f97\u5230\u4e00\u4e2a\u65b0\u7684\u5217\u8868\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u867d\u7136\u90fd\u80fd\u7528 <code>+<\/code>\uff0c\u4f46\u662f\u542b\u4e49\u8981\u5206\u6e05\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b57\u7b26\u4e32\u7684 <code>+<\/code>\uff1a\u62fc\u6587\u672c<\/li>\n\n\n\n<li>\u5217\u8868\u7684 <code>+<\/code>\uff1a\u62fc\u5143\u7d20\u5e8f\u5217<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">print \u76f4\u63a5\u6253\u5370\u65f6\uff0c\u8be5\u600e\u4e48\u64cd\u4f5c<\/h2>\n\n\n\n<p>\u8fd9\u4e2a\u90e8\u5206\u5f88\u57fa\u7840\uff0c\u4f46\u975e\u5e38\u91cd\u8981\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u76f4\u63a5\u6253\u5370\u5b57\u7b26\u4e32<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>name = \"hello\"\nprint(name)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hello\n<\/code><\/pre>\n\n\n\n<p>\u5b57\u7b26\u4e32\u76f4\u63a5\u6253\u5370\uff0c\u5c31\u662f\u628a\u6587\u5b57\u663e\u793a\u51fa\u6765\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u76f4\u63a5\u6253\u5370\u5217\u8868<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>nums = &#91;10, 20, 30]\nprint(nums)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;10, 20, 30]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u4f60\u4f1a\u53d1\u73b0\uff0c\u5217\u8868\u6253\u5370\u51fa\u6765\u4f1a\u5e26\u4e2d\u62ec\u53f7\uff0c\u56e0\u4e3a Python \u5728\u544a\u8bc9\u4f60\uff1a\u8fd9\u662f\u4e00\u4e2a\u5217\u8868\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u679c\u6211\u4e0d\u60f3\u8ba9\u5217\u8868\u5e26\u4e2d\u62ec\u53f7\u6253\u5370\uff0c\u600e\u4e48\u529e<\/h2>\n\n\n\n<p>\u8fd9\u662f\u521d\u5b66\u8005\u5f88\u5bb9\u6613\u78b0\u5230\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>words = &#91;\"a\", \"b\", \"c\"]\nprint(words)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;'a', 'b', 'c']\n<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u4f60\u60f3\u6253\u5370\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a b c\n<\/code><\/pre>\n\n\n\n<p>\u53ef\u4ee5\u7528\u4e0b\u9762\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b9\u6cd51\uff1a\u7528 <code>for<\/code> \u5faa\u73af\u9010\u4e2a\u6253\u5370<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>words = &#91;\"a\", \"b\", \"c\"]\n\nfor w in words:\n    print(w)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a\nb\nc\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u201c\u4e00\u884c\u4e00\u4e2a\u201d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b9\u6cd52\uff1a\u7528 <code>join()<\/code> \u628a\u5b57\u7b26\u4e32\u5217\u8868\u62fc\u8d77\u6765<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>words = &#91;\"a\", \"b\", \"c\"]\nprint(\" \".join(words))\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a b c\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u8981\u6ce8\u610f\uff1a<\/p>\n\n\n\n<p><code>join()<\/code> \u53ea\u80fd\u62fc\u63a5\u201c\u5b57\u7b26\u4e32\u5217\u8868\u201d\u3002<\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e0b\u9762\u8fd9\u79cd\u53ef\u4ee5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>words = &#91;\"hello\", \"python\", \"world\"]\nprint(\"-\".join(words))\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hello-python-world\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u5217\u8868\u91cc\u662f\u6570\u5b57\uff0c\u4e0d\u80fd\u76f4\u63a5 join<\/h3>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nums = &#91;1, 2, 3]\nprint(\" \".join(nums))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4f1a\u62a5\u9519\u3002<\/p>\n\n\n\n<p>\u56e0\u4e3a <code>join()<\/code> \u8981\u6c42\u5217\u8868\u91cc\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u5fc5\u987b\u662f\u5b57\u7b26\u4e32\uff0c\u4f46\u8fd9\u91cc\u662f\u6574\u6570\u3002<\/p>\n\n\n\n<p>\u8981\u5148\u8f6c\u6210\u5b57\u7b26\u4e32\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nums = &#91;1, 2, 3]\n\nfor n in nums:\n    print(n)\n<\/code><\/pre>\n\n\n\n<p>\u6216\u8005\u4ee5\u540e\u5b66\u5f97\u518d\u591a\u4e00\u70b9\u65f6\uff0c\u518d\u7528\u66f4\u65b9\u4fbf\u7684\u8f6c\u6362\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u521d\u5b66\u9636\u6bb5\uff0c\u4f60\u5148\u8bb0\u4f4f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5217\u8868\u91cc\u5982\u679c\u662f\u6570\u5b57\uff0c\u6700\u7a33\u59a5\u7684\u65b9\u6cd5\u662f <code>for<\/code> \u5faa\u73af\u6253\u5370<\/li>\n\n\n\n<li>\u5217\u8868\u91cc\u5982\u679c\u672c\u6765\u5c31\u662f\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u7528 <code>join()<\/code><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ece\u601d\u8def\u5230\u4ee3\u7801\uff1a\u600e\u4e48\u5224\u65ad\u8be5\u7528\u5b57\u7b26\u4e32\u8fd8\u662f\u5217\u8868<\/h2>\n\n\n\n<p>\u5199\u4ee3\u7801\u65f6\uff0c\u53ef\u4ee5\u5148\u95ee\u81ea\u5df1\u4e00\u53e5\u8bdd\uff1a<\/p>\n\n\n\n<p><strong>\u6211\u73b0\u5728\u5904\u7406\u7684\u662f\u201c\u4e00\u6bb5\u6587\u5b57\u201d\uff0c\u8fd8\u662f\u201c\u591a\u4e2a\u72ec\u7acb\u7684\u6570\u636e\u9879\u201d\uff1f<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u662f\u4e00\u6bb5\u6587\u5b57\uff0c\u7528\u5b57\u7b26\u4e32<\/h3>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u59d3\u540d<\/li>\n\n\n\n<li>\u4e00\u53e5\u8bdd<\/li>\n\n\n\n<li>\u4e00\u4e2a\u5355\u8bcd<\/li>\n\n\n\n<li>\u7528\u6237\u8f93\u5165\u7684\u4e00\u884c\u6587\u672c<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>name = \"Tom\"\nsentence = \"I like Python\"\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u662f\u591a\u4e2a\u72ec\u7acb\u6570\u636e\uff0c\u7528\u5217\u8868<\/h3>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u591a\u4e2a\u6210\u7ee9<\/li>\n\n\n\n<li>\u591a\u4e2a\u540d\u5b57<\/li>\n\n\n\n<li>\u591a\u4e2a\u5546\u54c1<\/li>\n\n\n\n<li>\u591a\u4e2a\u6570\u5b57<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>scores = &#91;90, 85, 100]\nnames = &#91;\"Tom\", \"Jack\", \"Lucy\"]\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u4e2a\u975e\u5e38\u5178\u578b\u7684\u5bf9\u6bd4\u4f8b\u5b50<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b57\u7b26\u4e32<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>text = \"abc\"\nprint(text&#91;1])\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>b\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u53d6\u51fa\u6765\u7684\u662f\u4e00\u4e2a\u5b57\u7b26\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\u4e0d\u80fd\u6539\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>text&#91;1] = \"x\"\n<\/code><\/pre>\n\n\n\n<p>\u4e0d\u884c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5217\u8868<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>letters = &#91;\"a\", \"b\", \"c\"]\nprint(letters&#91;1])\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>b\n<\/code><\/pre>\n\n\n\n<p>\u800c\u4e14\u53ef\u4ee5\u6539\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>letters&#91;1] = \"x\"\nprint(letters)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;'a', 'x', 'c']\n<\/code><\/pre>\n\n\n\n<p>\u6240\u4ee5\u4f60\u53ef\u4ee5\u770b\u5230\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b57\u7b26\u4e32\u50cf\u201c\u4e0d\u80fd\u62c6\u5f00\u6539\u7684\u6587\u672c\u201d<\/li>\n\n\n\n<li>\u5217\u8868\u50cf\u201c\u53ef\u4ee5\u62c6\u5f00\u6539\u7684\u5143\u7d20\u96c6\u5408\u201d<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u518d\u8865\u4e00\u4e2a\u5bb9\u6613\u6df7\u6dc6\u7684\u70b9\uff1a\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\u4e5f\u662f\u5b57\u7b26\u4e32<\/h2>\n\n\n\n<p>\u8fd9\u4e2a\u5730\u65b9\u521d\u5b66\u8005\u5f88\u5bb9\u6613\u5ffd\u7565\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>text = \"hello\"\nprint(text&#91;0])\nprint(type(text&#91;0]))\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>h\n&lt;class 'str'&gt;\n<\/code><\/pre>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff1a<\/p>\n\n\n\n<p><code>text[0]<\/code> \u53d6\u51fa\u6765\u7684\u4e0d\u662f\u201c\u5b57\u7b26\u7c7b\u578b\u201d\uff0c\u800c\u662f\u4e00\u4e2a\u957f\u5ea6\u4e3a 1 \u7684\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n<p>Python \u91cc\u6ca1\u6709\u5355\u72ec\u7684\u201c\u5b57\u7b26\u7c7b\u578b\u201d\uff0c\u5355\u4e2a\u5b57\u7b26\u672c\u8d28\u4e0a\u8fd8\u662f\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u9519\u8bef\u4e0e\u6613\u6df7\u70b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u4ee5\u4e3a\u5b57\u7b26\u4e32\u65e2\u7136\u80fd\u7d22\u5f15\uff0c\u5c31\u4e00\u5b9a\u80fd\u4fee\u6539<\/h3>\n\n\n\n<p>\u8fd9\u662f\u6700\u5e38\u89c1\u8bef\u533a\u3002<\/p>\n\n\n\n<p>\u80fd\u7d22\u5f15\uff0c\u53ea\u8bf4\u660e\u4f60\u80fd\u201c\u8bbf\u95ee\u5b83\u7684\u67d0\u4e2a\u4f4d\u7f6e\u201d\uff0c\u4e0d\u4ee3\u8868\u4f60\u80fd\u6539\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u628a\u5217\u8868\u548c\u5b57\u7b26\u4e32\u7684\u6253\u5370\u6548\u679c\u6df7\u4e3a\u4e00\u8c08<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>print(\"hello\")\nprint(&#91;\"h\", \"e\", \"l\", \"l\", \"o\"])\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\u5b8c\u5168\u4e0d\u4e00\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hello\n&#91;'h', 'e', 'l', 'l', 'o']\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a\u4e00\u4e2a\u662f\u5b57\u7b26\u4e32\uff0c\u4e00\u4e2a\u662f\u5217\u8868\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u5bf9\u6570\u5b57\u5217\u8868\u76f4\u63a5\u4f7f\u7528 <code>join()<\/code><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>nums = &#91;1, 2, 3]\nprint(\" \".join(nums))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u9519\u8bef\u7684\u3002<\/p>\n\n\n\n<p>\u56e0\u4e3a <code>join()<\/code> \u53ea\u80fd\u8fde\u63a5\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u8bef\u4ee5\u4e3a\u5b57\u7b26\u4e32\u52a0\u6cd5\u548c\u5217\u8868\u52a0\u6cd5\u662f\u540c\u4e00\u79cd\u610f\u601d<\/h3>\n\n\n\n<p>\u867d\u7136\u90fd\u5199 <code>+<\/code>\uff0c\u4f46\u672c\u8d28\u4e0d\u4e00\u6837\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>\"ab\" + \"cd\"<\/code> \u5f97\u5230 <code>\"abcd\"<\/code><\/li>\n\n\n\n<li><code>[1, 2] + [3, 4]<\/code> \u5f97\u5230 <code>[1, 2, 3, 4]<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u5f62\u5f0f\u4e00\u6837\uff0c\u64cd\u4f5c\u5bf9\u8c61\u4e0d\u540c\uff0c\u7ed3\u679c\u4e5f\u4e0d\u540c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u672c\u8282\u5c0f\u7ed3<\/h2>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u5148\u628a\u6838\u5fc3\u533a\u522b\u8bb0\u6210\u4e0b\u9762\u8fd9\u51e0\u53e5\u8bdd\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5bf9\u6bd4\u70b9<\/th><th>\u5b57\u7b26\u4e32 str<\/th><th>\u5217\u8868 list<\/th><\/tr><\/thead><tbody><tr><td>\u662f\u5426\u652f\u6301\u7d22\u5f15<\/td><td>\u652f\u6301<\/td><td>\u652f\u6301<\/td><\/tr><tr><td>\u662f\u5426\u652f\u6301\u5207\u7247<\/td><td>\u652f\u6301<\/td><td>\u652f\u6301<\/td><\/tr><tr><td>\u662f\u5426\u80fd\u904d\u5386<\/td><td>\u80fd<\/td><td>\u80fd<\/td><\/tr><tr><td>\u662f\u5426\u80fd\u76f4\u63a5\u4fee\u6539\u67d0\u4e2a\u4f4d\u7f6e<\/td><td>\u4e0d\u80fd<\/td><td>\u80fd<\/td><\/tr><tr><td>\u4e3b\u8981\u7528\u9014<\/td><td>\u8868\u793a\u6587\u672c<\/td><td>\u5b58\u653e\u591a\u4e2a\u5143\u7d20<\/td><\/tr><tr><td>\u76f4\u63a5 <code>print()<\/code> \u7684\u6548\u679c<\/td><td>\u76f4\u63a5\u663e\u793a\u6587\u672c<\/td><td>\u663e\u793a\u6574\u4e2a\u5217\u8868\u7ed3\u6784<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u6700\u91cd\u8981\u7684\u4e00\u53e5\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u5b57\u7b26\u4e32\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u5217\u8868\u662f\u53ef\u53d8\u7684\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u6700\u5c0f\u53ef\u8fd0\u884c\u4f8b\u5b50<\/h2>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884c\u4e0b\u9762\u8fd9\u6bb5\uff0c\u611f\u53d7\u4e00\u4e0b\u533a\u522b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>text = \"hello\"\nnums = &#91;1, 2, 3]\n\nprint(\"\u5b57\u7b26\u4e32\u7b2c0\u4e2a\u5143\u7d20\uff1a\", text&#91;0])\nprint(\"\u5217\u8868\u7b2c0\u4e2a\u5143\u7d20\uff1a\", nums&#91;0])\n\nnums&#91;0] = 100\nprint(\"\u4fee\u6539\u540e\u7684\u5217\u8868\uff1a\", nums)\n\nprint(\"\u76f4\u63a5\u6253\u5370\u5b57\u7b26\u4e32\uff1a\", text)\nprint(\"\u76f4\u63a5\u6253\u5370\u5217\u8868\uff1a\", nums)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\u5927\u6982\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u5b57\u7b26\u4e32\u7b2c0\u4e2a\u5143\u7d20\uff1a h\n\u5217\u8868\u7b2c0\u4e2a\u5143\u7d20\uff1a 1\n\u4fee\u6539\u540e\u7684\u5217\u8868\uff1a &#91;100, 2, 3]\n\u76f4\u63a5\u6253\u5370\u5b57\u7b26\u4e32\uff1a hello\n\u76f4\u63a5\u6253\u5370\u5217\u8868\uff1a &#91;100, 2, 3]\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ec3\u4e60<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9898\u76ee<\/h3>\n\n\n\n<p>\u5199\u4e00\u6bb5\u7a0b\u5e8f\uff0c\u5b8c\u6210\u4e0b\u9762\u51e0\u4ef6\u4e8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5b9a\u4e49\u4e00\u4e2a\u5b57\u7b26\u4e32 <code>\"python\"<\/code><\/li>\n\n\n\n<li>\u6253\u5370\u5b83\u7684\u7b2c 2 \u4e2a\u5b57\u7b26<\/li>\n\n\n\n<li>\u5b9a\u4e49\u4e00\u4e2a\u5217\u8868 <code>[10, 20, 30]<\/code><\/li>\n\n\n\n<li>\u628a\u5217\u8868\u4e2d\u7b2c 2 \u4e2a\u5143\u7d20\u6539\u6210 <code>99<\/code><\/li>\n\n\n\n<li>\u6253\u5370\u4fee\u6539\u540e\u7684\u5217\u8868<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u63d0\u793a<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7d22\u5f15\u4ece <code>0<\/code> \u5f00\u59cb<\/li>\n\n\n\n<li>\u7b2c 2 \u4e2a\u5b57\u7b26\uff0c\u5176\u5b9e\u7d22\u5f15\u662f <code>1<\/code><\/li>\n\n\n\n<li>\u5217\u8868\u53ef\u4ee5\u76f4\u63a5\u5199 <code>\u5217\u8868\u540d[\u7d22\u5f15] = \u65b0\u503c<\/code><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u4e2a\u89c2\u5bdf\u5176\u5b9e\u5f88\u91cd\u8981\uff1astr \u5b57\u7b26\u4e32\u548c list \u5217\u8868\uff0c\u90fd\u652f\u6301\u7d22\u5f15\uff0c\u90fd\u80fd\u7528\u4e0b\u6807\u53bb\u53d6\u67d0\u4e2a\u4f4d\u7f6e\u7684\u5185\u5bb9\uff0c\u770b\u8d77\u6765\u786e\u5b9e\u5f88\u50cf [&hellip;]<\/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-2026","post","type-post","status-publish","format-standard","hentry","category-text"],"_links":{"self":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2026","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=2026"}],"version-history":[{"count":2,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2026\/revisions"}],"predecessor-version":[{"id":2028,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2026\/revisions\/2028"}],"wp:attachment":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=2026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=2026"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=2026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}