{"id":2060,"date":"2026-04-20T21:21:29","date_gmt":"2026-04-20T13:21:29","guid":{"rendered":"http:\/\/www.preluna.xyz\/?p=2060"},"modified":"2026-04-20T21:21:29","modified_gmt":"2026-04-20T13:21:29","slug":"axis","status":"publish","type":"post","link":"http:\/\/www.preluna.xyz\/index.php\/2026\/04\/20\/axis\/preluna\/text\/","title":{"rendered":"axis"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/www.preluna.xyz\/wp-content\/uploads\/2026\/04\/axis.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"747\" height=\"726\" data-original=\"http:\/\/www.preluna.xyz\/wp-content\/uploads\/2026\/04\/axis.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2061\"  sizes=\"auto, (max-width: 747px) 100vw, 747px\" \/><\/div><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy as np\n\nN, M, P = map(int, input().split())\n\narr1 = &#91;list(map(int, input().split())) for _ in range(N)]\narr2 = &#91;list(map(int, input().split())) for _ in range(M)]\n\narr1 = np.array(arr1)\narr2 = np.array(arr2)\n\nprint(np.concatenate((arr1, arr2), axis=0))<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><code>axis<\/code> \u8fd9\u4e2a\u53c2\u6570\u5230\u5e95\u662f\u4ec0\u4e48\u610f\u601d<\/h2>\n\n\n\n<p>\u4f60\u73b0\u5728\u53ef\u4ee5\u5148\u628a <code>axis<\/code> \u6682\u65f6\u7406\u89e3\u6210\u4e00\u53e5\u6700\u5b9e\u7528\u7684\u8bdd\uff1a<\/p>\n\n\n\n<p><strong><code>axis<\/code> \u51b3\u5b9a\u4f60\u201c\u6cbf\u7740\u54ea\u4e00\u4e2a\u65b9\u5411\u53bb\u64cd\u4f5c\u6570\u7ec4\u201d\u3002<\/strong><\/p>\n\n\n\n<p>\u5728 <code>numpy.concatenate()<\/code> \u91cc\u9762\uff0c<code>axis<\/code> \u7684\u610f\u601d\u5c31\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u4f60\u8981\u6cbf\u7740\u54ea\u4e00\u4e2a\u8f74\uff0c\u628a\u591a\u4e2a\u6570\u7ec4\u63a5\u8d77\u6765\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\">\u5148\u770b\u4f60\u7ed9\u7684\u8fd9\u4e24\u4e2a\u6570\u7ec4<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>array_1 = numpy.array(&#91;&#91;1,2,3],&#91;0,0,0]])\narray_2 = numpy.array(&#91;&#91;0,0,0],&#91;7,8,9]])\n<\/code><\/pre>\n\n\n\n<p>\u628a\u5b83\u4eec\u5199\u6574\u9f50\u4e00\u70b9\uff0c\u5c31\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>array_1 =\n&#91;&#91;1 2 3]\n &#91;0 0 0]]\n\narray_2 =\n&#91;&#91;0 0 0]\n &#91;7 8 9]]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e24\u4e2a\u6570\u7ec4\u7684\u5f62\u72b6\u90fd\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(2, 3)\n<\/code><\/pre>\n\n\n\n<p>\u8868\u793a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2 \u884c<\/li>\n\n\n\n<li>3 \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\">\u4e8c\u7ef4\u6570\u7ec4\u91cc\uff0c<code>axis=0<\/code> \u548c <code>axis=1<\/code> \u600e\u4e48\u7406\u89e3<\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u4e8c\u7ef4\u6570\u7ec4\uff0c\u4f60\u53ef\u4ee5\u5148\u8fd9\u6837\u8bb0\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code>\uff1a\u6309\u4e0a\u4e0b\u65b9\u5411\u5904\u7406\uff0c\u4e5f\u5c31\u662f\u201c\u884c\u7684\u65b9\u5411\u201d<\/li>\n\n\n\n<li><code>axis=1<\/code>\uff1a\u6309\u5de6\u53f3\u65b9\u5411\u5904\u7406\uff0c\u4e5f\u5c31\u662f\u201c\u5217\u7684\u65b9\u5411\u201d<\/li>\n<\/ul>\n\n\n\n<p>\u4f60\u4e5f\u53ef\u4ee5\u628a\u5b83\u8bb0\u6210\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code>\uff1a\u5f80\u4e0b\u5806<\/li>\n\n\n\n<li><code>axis=1<\/code>\uff1a\u5f80\u53f3\u62fc<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u662f\u6700\u9002\u5408\u521d\u5b66\u8005\u7684\u8bb0\u6cd5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u4f60\u8fd9\u91cc <code>axis=1<\/code> \u53ef\u4ee5\u6210\u529f<\/h2>\n\n\n\n<p>\u4f60\u7684\u4ee3\u7801\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>print(numpy.concatenate((array_1, array_2), axis=1))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u7684 <code>axis=1<\/code> \u8868\u793a\uff1a<\/p>\n\n\n\n<p><strong>\u628a\u4e24\u4e2a\u6570\u7ec4\u6309\u5217\u65b9\u5411\u62fc\u63a5\uff0c\u4e5f\u5c31\u662f\u5de6\u53f3\u62fc\u63a5\u3002<\/strong><\/p>\n\n\n\n<p>\u6240\u4ee5\u6548\u679c\u76f8\u5f53\u4e8e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1 2 3]    +    &#91;0 0 0]\n &#91;0 0 0]]        &#91;7 8 9]]\n<\/code><\/pre>\n\n\n\n<p>\u5de6\u53f3\u62fc\u8d77\u6765\u4ee5\u540e\uff0c\u5c31\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1 2 3 0 0 0]\n &#91;0 0 0 7 8 9]]\n<\/code><\/pre>\n\n\n\n<p>\u6240\u4ee5\u8f93\u51fa\u7ed3\u679c\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1 2 3 0 0 0]\n &#91;0 0 0 7 8 9]]\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\">\u5b83\u4e3a\u4ec0\u4e48\u80fd\u6210\u529f\uff0c\u6838\u5fc3\u539f\u56e0\u662f\u4ec0\u4e48<\/h2>\n\n\n\n<p>\u56e0\u4e3a\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f60\u4f7f\u7528\u7684\u662f <code>axis=1<\/code><\/h3>\n\n\n\n<p>\u4e5f\u5c31\u662f\u5de6\u53f3\u62fc\u63a5\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u5de6\u53f3\u62fc\u63a5\u65f6\uff0c\u8981\u6c42\u662f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p>\u8981\u6c42\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u884c\u6570\u5fc5\u987b\u4e00\u6837\u3002<\/strong><\/p>\n\n\n\n<p>\u56e0\u4e3a\u4f60\u662f\u4e00\u884c\u5bf9\u4e00\u884c\u5730\u5f80\u53f3\u63a5\u3002<\/p>\n\n\n\n<p>\u800c\u4f60\u7684\u4e24\u4e2a\u6570\u7ec4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>array_1.shape = (2, 3)<\/code><\/li>\n\n\n\n<li><code>array_2.shape = (2, 3)<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u5b83\u4eec\u7684\u884c\u6570\u90fd\u662f <code>2<\/code>\uff0c\u5b8c\u5168\u4e00\u81f4\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u53ef\u4ee5\u6210\u529f\u62fc\u63a5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u8fd9\u91cc\u6700\u5bb9\u6613\u6df7\u6dc6\u7684\u4e00\u70b9<\/h2>\n\n\n\n<p>\u5f88\u591a\u4eba\u4f1a\u4ee5\u4e3a\uff1a<\/p>\n\n\n\n<p>\u201c<code>axis=1<\/code> \u662f\u4e0d\u662f\u8981\u6c42\u7b2c 1 \u7ef4\u5fc5\u987b\u76f8\u540c\uff1f\u201d<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u60f3\u6cd5\u4e0d\u591f\u76f4\u89c2\uff0c\u521d\u5b66\u65f6\u5f88\u5bb9\u6613\u7ed5\u6655\u3002<\/p>\n\n\n\n<p>\u4f60\u73b0\u5728\u5148\u7528\u66f4\u76f4\u767d\u7684\u65b9\u5f0f\u7406\u89e3\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u662f <code>axis=1<\/code>\uff0c\u8bf4\u660e\u4f60\u8981\u5de6\u53f3\u62fc\u63a5<\/h3>\n\n\n\n<p>\u90a3\u4e48\u5de6\u53f3\u62fc\u63a5\u65f6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u884c\u6570\u5fc5\u987b\u76f8\u540c<\/li>\n\n\n\n<li>\u5217\u6570\u53ef\u4ee5\u589e\u52a0<\/li>\n<\/ul>\n\n\n\n<p>\u4f60\u8fd9\u91cc\u521a\u597d\u6ee1\u8db3\u8fd9\u4e00\u70b9\uff0c\u6240\u4ee5\u6210\u529f\u3002<\/p>\n\n\n\n<p>\u62fc\u63a5\u540e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u6765\u6bcf\u4e2a\u6570\u7ec4 2 \u884c 3 \u5217<\/li>\n\n\n\n<li>\u5de6\u53f3\u62fc\u63a5\u540e\u53d8\u6210 2 \u884c 6 \u5217<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\u7ed3\u679c\u5f62\u72b6\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(2, 6)\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\">\u5982\u679c\u6539\u6210 <code>axis=0<\/code> \u4f1a\u53d1\u751f\u4ec0\u4e48<\/h2>\n\n\n\n<p>\u5982\u679c\u4f60\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>print(numpy.concatenate((array_1, array_2), axis=0))\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u5c31\u53d8\u6210\u4e0a\u4e0b\u62fc\u63a5\u3002<\/p>\n\n\n\n<p>\u76f8\u5f53\u4e8e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1 2 3]\n &#91;0 0 0]]\n\n&#91;&#91;0 0 0]\n &#91;7 8 9]]\n<\/code><\/pre>\n\n\n\n<p>\u4e0a\u4e0b\u63a5\u8d77\u6765\u540e\u5c31\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1 2 3]\n &#91;0 0 0]\n &#91;0 0 0]\n &#91;7 8 9]]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u65f6\u7ed3\u679c\u5f62\u72b6\u53d8\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(4, 3)\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u884c\u6570\u53d8\u591a\u4e86\uff1a2 + 2 = 4<\/li>\n\n\n\n<li>\u5217\u6570\u4e0d\u53d8\uff1a\u8fd8\u662f 3<\/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\">\u6240\u4ee5 <code>axis<\/code> \u5230\u5e95\u8be5\u600e\u4e48\u5224\u65ad<\/h2>\n\n\n\n<p>\u4f60\u4ee5\u540e\u770b\u5230 <code>concatenate<\/code>\uff0c\u76f4\u63a5\u5148\u95ee\u81ea\u5df1\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6211\u8981\u7684\u662f\u201c\u4e0a\u4e0b\u63a5\u201d\uff0c\u8fd8\u662f\u201c\u5de6\u53f3\u63a5\u201d\uff1f<\/h3>\n\n\n\n<p>\u5982\u679c\u662f\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e0a\u4e0b\u63a5<\/h3>\n\n\n\n<p>\u5c31\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>axis=0\n<\/code><\/pre>\n\n\n\n<p>\u8981\u6c42\uff1a<\/p>\n\n\n\n<p><strong>\u5217\u6570\u76f8\u540c<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5de6\u53f3\u63a5<\/h3>\n\n\n\n<p>\u5c31\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>axis=1\n<\/code><\/pre>\n\n\n\n<p>\u8981\u6c42\uff1a<\/p>\n\n\n\n<p><strong>\u884c\u6570\u76f8\u540c<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7528\u4f60\u8fd9\u9053\u9898\u548c\u4f60\u4e0a\u4e00\u9053\u9898\u5bf9\u6bd4\u4e00\u4e0b\uff0c\u5c31\u4f1a\u7279\u522b\u6e05\u695a<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f60\u4e0a\u4e00\u9053\u9898<\/h3>\n\n\n\n<p>\u524d\u4e00\u4e2a\u6570\u7ec4\u5f62\u72b6\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(4, 2)\n<\/code><\/pre>\n\n\n\n<p>\u540e\u4e00\u4e2a\u6570\u7ec4\u5f62\u72b6\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(3, 2)\n<\/code><\/pre>\n\n\n\n<p>\u4f60\u5f53\u65f6\u5199\u4e86\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>axis=1\n<\/code><\/pre>\n\n\n\n<p>\u4e5f\u5c31\u662f\u5de6\u53f3\u62fc\u63a5\u3002<\/p>\n\n\n\n<p>\u4f46\u5de6\u53f3\u62fc\u63a5\u8981\u6c42\u884c\u6570\u76f8\u540c\u3002<\/p>\n\n\n\n<p>\u53ef\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u4e2a 4 \u884c<\/li>\n\n\n\n<li>\u4e00\u4e2a 3 \u884c<\/li>\n<\/ul>\n\n\n\n<p>\u884c\u6570\u4e0d\u540c\uff0c\u6240\u4ee5\u62a5\u9519\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fd9\u4e00\u6b21\u8fd9\u9053\u9898<\/h3>\n\n\n\n<p>\u4e24\u4e2a\u6570\u7ec4\u90fd\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(2, 3)\n<\/code><\/pre>\n\n\n\n<p>\u4f60\u5199\u7684\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>axis=1\n<\/code><\/pre>\n\n\n\n<p>\u5de6\u53f3\u62fc\u63a5\u8981\u6c42\u884c\u6570\u76f8\u540c\u3002<\/p>\n\n\n\n<p>\u8fd9\u91cc\u4e24\u4e2a\u6570\u7ec4\u90fd\u662f 2 \u884c\uff0c\u6240\u4ee5\u6210\u529f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u518d\u8fdb\u4e00\u6b65\uff1a<code>axis<\/code> \u672c\u8d28\u4e0a\u662f\u201c\u7ef4\u5ea6\u7f16\u53f7\u201d<\/h2>\n\n\n\n<p>\u5982\u679c\u4f60\u60f3\u7a0d\u5fae\u66f4\u6b63\u5f0f\u4e00\u70b9\u7406\u89e3\uff1a<\/p>\n\n\n\n<p>\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u7684\u5f62\u72b6\u5199\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(\u884c\u6570, \u5217\u6570)\n<\/code><\/pre>\n\n\n\n<p>\u6bd4\u5982 <code>(2, 3)<\/code>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c 0 \u7ef4\u5927\u5c0f\u662f 2\uff0c\u4e5f\u5c31\u662f 2 \u884c<\/li>\n\n\n\n<li>\u7b2c 1 \u7ef4\u5927\u5c0f\u662f 3\uff0c\u4e5f\u5c31\u662f 3 \u5217<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code>\uff1a\u6cbf\u7740\u7b2c 0 \u7ef4\u65b9\u5411\u64cd\u4f5c<\/li>\n\n\n\n<li><code>axis=1<\/code>\uff1a\u6cbf\u7740\u7b2c 1 \u7ef4\u65b9\u5411\u64cd\u4f5c<\/li>\n<\/ul>\n\n\n\n<p>\u4f46\u662f\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\uff0c\u8fd9\u4e2a\u8bf4\u6cd5\u4e0d\u5982\u201c\u4e0a\u4e0b\u63a5 \/ \u5de6\u53f3\u63a5\u201d\u597d\u8bb0\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u4f60\u73b0\u9636\u6bb5\u4f18\u5148\u8bb0\u4f4f\u8fd9\u4e2a\u5c31\u591f\u4e86\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code>\uff1a\u4e0a\u4e0b\u62fc<\/li>\n\n\n\n<li><code>axis=1<\/code>\uff1a\u5de6\u53f3\u62fc<\/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\">\u4e00\u5f20\u975e\u5e38\u5b9e\u7528\u7684\u5c0f\u8868<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5199\u6cd5<\/th><th>\u76f4\u89c2\u7406\u89e3<\/th><th>\u7ed3\u679c\u53d8\u5316<\/th><th>\u9700\u8981\u6ee1\u8db3\u7684\u6761\u4ef6<\/th><\/tr><\/thead><tbody><tr><td><code>axis=0<\/code><\/td><td>\u4e0a\u4e0b\u62fc\u63a5<\/td><td>\u884c\u6570\u589e\u52a0<\/td><td>\u5217\u6570\u76f8\u540c<\/td><\/tr><tr><td><code>axis=1<\/code><\/td><td>\u5de6\u53f3\u62fc\u63a5<\/td><td>\u5217\u6570\u589e\u52a0<\/td><td>\u884c\u6570\u76f8\u540c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u8fd9\u4e2a\u8868\u4f60\u540e\u9762\u505a\u9898\u65f6\u4f1a\u975e\u5e38\u6709\u7528\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\u9898\u5c0f\u7ed3<\/h2>\n\n\n\n<p>\u4f60\u8fd9\u6bb5\u4ee3\u7801\u4e4b\u6240\u4ee5\u80fd\u6210\u529f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>print(numpy.concatenate((array_1, array_2), axis=1))\n<\/code><\/pre>\n\n\n\n<p>\u539f\u56e0\u5c31\u662f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>axis=1<\/code> \u8868\u793a\u5de6\u53f3\u62fc\u63a5<\/li>\n\n\n\n<li>\u5de6\u53f3\u62fc\u63a5\u8981\u6c42\u4e24\u4e2a\u6570\u7ec4\u7684\u884c\u6570\u76f8\u540c<\/li>\n\n\n\n<li><code>array_1<\/code> \u548c <code>array_2<\/code> \u90fd\u662f 2 \u884c<\/li>\n\n\n\n<li>\u6240\u4ee5\u53ef\u4ee5\u6210\u529f\u62fc\u63a5<\/li>\n\n\n\n<li>\u62fc\u63a5\u540e\u7ed3\u679c\u4ece <code>(2, 3)<\/code> \u53d8\u6210 <code>(2, 6)<\/code><\/li>\n<\/ol>\n\n\n\n<p>\u6700\u7ec8\u7ed3\u679c\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1 2 3 0 0 0]\n &#91;0 0 0 7 8 9]]\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\">\u7ed9\u4f60\u4e00\u4e2a\u975e\u5e38\u5c0f\u7684\u7ec3\u4e60<\/h2>\n\n\n\n<p>\u4f60\u81ea\u5df1\u5224\u65ad\u4e00\u4e0b\u4e0b\u9762\u8fd9\u4e24\u4e2a\u80fd\u4e0d\u80fd\u62fc\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a.shape = (3, 2)\nb.shape = (3, 4)\n<\/code><\/pre>\n\n\n\n<p>\u8bf7\u4f60\u8bd5\u7740\u56de\u7b54\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u7528 <code>axis=0<\/code> \u80fd\u4e0d\u80fd\u62fc\uff1f<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u7528 <code>axis=1<\/code> \u80fd\u4e0d\u80fd\u62fc\uff1f<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u5982\u679c\u80fd\u62fc\uff0c\u7ed3\u679c\u5f62\u72b6\u662f\u4ec0\u4e48\uff1f<\/h3>\n\n\n\n<p>\u63d0\u793a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code> \u770b\u5217\u6570<\/li>\n\n\n\n<li><code>axis=1<\/code> \u770b\u884c\u6570<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u53eb <code>axis=0<\/code>\u3001<code>axis=1<\/code>\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u5199\u6210 <code>row<\/code> \u6216 <code>col<\/code><\/h2>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u95ee\u9898\u3002\u5f88\u591a\u521d\u5b66\u8005\u7b2c\u4e00\u6b21\u63a5\u89e6 NumPy \u7684\u65f6\u5019\uff0c\u90fd\u4f1a\u89c9\u5f97\u8fd9\u91cc\u6709\u70b9\u522b\u626d\uff1a<\/p>\n\n\n\n<p>\u201c\u660e\u660e\u4e8c\u7ef4\u6570\u7ec4\u5c31\u662f\u884c\u548c\u5217\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u5199 <code>row<\/code>\u3001<code>col<\/code>\uff0c\u975e\u8981\u5199\u6210 <code>axis=0<\/code>\u3001<code>axis=1<\/code> \u5462\uff1f\u201d<\/p>\n\n\n\n<p>\u8fd9\u5176\u5b9e\u4e0d\u662f NumPy \u6545\u610f\u7ed5\uff0c\u800c\u662f\u56e0\u4e3a\u5b83\u9762\u5bf9\u7684\u5bf9\u8c61\u4e0d\u53ea\u662f\u4e8c\u7ef4\u8868\u683c\uff0c\u800c\u662f\u66f4\u4e00\u822c\u7684 <strong>\u591a\u7ef4\u6570\u7ec4<\/strong>\u3002\u4e00\u65e6\u4f60\u628a\u8fd9\u4e2a\u80cc\u666f\u60f3\u6e05\u695a\uff0c<code>axis<\/code> \u8fd9\u4e2a\u540d\u5b57\u5c31\u4f1a\u53d8\u5f97\u5f88\u81ea\u7136\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\u8bf4\u7ed3\u8bba\uff1a<code>row<\/code> \u548c <code>col<\/code> \u53ea\u9002\u5408\u4e8c\u7ef4\uff0c<code>axis<\/code> \u9002\u5408\u4efb\u610f\u7ef4\u5ea6<\/h2>\n\n\n\n<p>\u5982\u679c\u4e00\u4e2a\u6570\u7ec4\u6c38\u8fdc\u53ea\u6709\u4e8c\u7ef4\uff0c\u90a3\u4e48\u7528 <code>row<\/code> \u548c <code>col<\/code> \u786e\u5b9e\u5f88\u76f4\u89c2\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>row \u8868\u793a\u884c<\/li>\n\n\n\n<li>col \u8868\u793a\u5217<\/li>\n<\/ul>\n\n\n\n<p>\u4f46\u662f NumPy \u91cc\u7684\u6570\u7ec4\uff0c\u4e0d\u4e00\u5b9a\u53ea\u6709\u4e8c\u7ef4\u3002<\/p>\n\n\n\n<p>\u5b83\u53ef\u80fd\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u7ef4\u6570\u7ec4<\/li>\n\n\n\n<li>\u4e8c\u7ef4\u6570\u7ec4<\/li>\n\n\n\n<li>\u4e09\u7ef4\u6570\u7ec4<\/li>\n\n\n\n<li>\u56db\u7ef4\u6570\u7ec4<\/li>\n\n\n\n<li>\u66f4\u591a\u7ef4\u6570\u7ec4<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u65f6\u5019\uff0c\u5982\u679c\u8fd8\u7528 <code>row<\/code> \u548c <code>col<\/code>\uff0c\u5c31\u4f1a\u7acb\u523b\u51fa\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u56e0\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u7ef4\u6570\u7ec4\u6ca1\u6709\u201c\u884c\u5217\u201d\u8fd9\u79cd\u8bf4\u6cd5<\/li>\n\n\n\n<li>\u4e09\u7ef4\u6570\u7ec4\u4e0d\u6b62\u201c\u884c\u5217\u201d\u4e24\u4e2a\u65b9\u5411<\/li>\n\n\n\n<li>\u66f4\u9ad8\u7ef4\u6570\u7ec4\u66f4\u4e0d\u53ef\u80fd\u53ea\u9760 <code>row<\/code> \u548c <code>col<\/code> \u8868\u8fbe\u6e05\u695a<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5 NumPy \u9700\u8981\u4e00\u4e2a\u66f4\u901a\u7528\u7684\u6982\u5ff5\uff0c\u8fd9\u4e2a\u6982\u5ff5\u5c31\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u7b2c 0 \u8f74\u3001\u7b2c 1 \u8f74\u3001\u7b2c 2 \u8f74\u2026\u2026<\/strong><\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f <code>axis=0<\/code>\u3001<code>axis=1<\/code>\u3001<code>axis=2<\/code>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><code>axis<\/code> \u672c\u8d28\u4e0a\u662f\u4ec0\u4e48\u610f\u601d<\/h2>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u628a <code>axis<\/code> \u7406\u89e3\u6210\uff1a<\/p>\n\n\n\n<p><strong>\u6570\u7ec4\u7684\u67d0\u4e00\u4e2a\u65b9\u5411\uff0c\u6216\u8005\u67d0\u4e00\u4e2a\u7ef4\u5ea6\u7f16\u53f7\u3002<\/strong><\/p>\n\n\n\n<p>\u6bd4\u5982\u4e00\u4e2a\u6570\u7ec4\u7684\u5f62\u72b6\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(2, 3)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u8868\u793a\u5b83\u6709\u4e24\u4e2a\u7ef4\u5ea6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c 0 \u7ef4\u5927\u5c0f\u662f 2<\/li>\n\n\n\n<li>\u7b2c 1 \u7ef4\u5927\u5c0f\u662f 3<\/li>\n<\/ul>\n\n\n\n<p>NumPy \u5c31\u628a\u8fd9\u4e24\u4e2a\u7ef4\u5ea6\u5206\u522b\u7f16\u53f7\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code><\/li>\n\n\n\n<li><code>axis=1<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\uff0c<code>axis<\/code> \u5176\u5b9e\u4e0d\u662f\u201c\u884c\u201d\u6216\u8005\u201c\u5217\u201d\u672c\u8eab\uff0c\u5b83\u66f4\u50cf\u662f\u5728\u8bf4\uff1a<\/p>\n\n\n\n<p><strong>\u201c\u6211\u8981\u9488\u5bf9\u7b2c\u51e0\u4e2a\u7ef4\u5ea6\u6765\u505a\u64cd\u4f5c\u3002\u201d<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u4e0d\u7528 <code>row<\/code> \u548c <code>col<\/code><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u539f\u56e0\u4e00\uff1a\u4e00\u7ef4\u6570\u7ec4\u6839\u672c\u6ca1\u6709 row \u548c col<\/h3>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a = numpy.array(&#91;10, 20, 30])\n<\/code><\/pre>\n\n\n\n<p>\u5b83\u7684\u5f62\u72b6\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(3,)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u4e00\u7ef4\u6570\u7ec4\u3002<\/p>\n\n\n\n<p>\u8fd9\u65f6\u5019\u4f60\u8bf4\u5b83\u6709\u201c\u884c\u201d\u5417\uff1f\u4e0d\u592a\u51c6\u786e\u3002<br>\u4f60\u8bf4\u5b83\u6709\u201c\u5217\u201d\u5417\uff1f\u4e5f\u4e0d\u51c6\u786e\u3002<\/p>\n\n\n\n<p>\u4f46\u4f60\u53ef\u4ee5\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b83\u53ea\u6709\u4e00\u4e2a\u8f74<\/li>\n\n\n\n<li>\u8fd9\u4e2a\u8f74\u5c31\u662f <code>axis=0<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\u5728\u4e00\u7ef4\u6570\u7ec4\u91cc\uff0c<code>axis=0<\/code> \u4ecd\u7136\u662f\u4e00\u4e2a\u7edf\u4e00\u3001\u81ea\u7136\u7684\u8bf4\u6cd5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u539f\u56e0\u4e8c\uff1a\u4e09\u7ef4\u6570\u7ec4\u5df2\u7ecf\u4e0d\u6b62\u884c\u548c\u5217\u4e86<\/h3>\n\n\n\n<p>\u6bd4\u5982\u4e00\u4e2a\u4e09\u7ef4\u6570\u7ec4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a.shape = (2, 3, 4)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u8868\u793a\u5b83\u6709 3 \u4e2a\u7ef4\u5ea6\u3002<\/p>\n\n\n\n<p>\u8fd9\u65f6\u5019\u4f60\u518d\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>row<\/li>\n\n\n\n<li>col<\/li>\n<\/ul>\n\n\n\n<p>\u5c31\u4e0d\u591f\u7528\u4e86\u3002<\/p>\n\n\n\n<p>\u56e0\u4e3a\u7b2c\u4e09\u4e2a\u65b9\u5411\u53eb\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p>\u4f60\u603b\u4e0d\u80fd\u7ee7\u7eed\u53d1\u660e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>row<\/li>\n\n\n\n<li>col<\/li>\n\n\n\n<li>depth<\/li>\n<\/ul>\n\n\n\n<p>\u90a3\u56db\u7ef4\u5462\uff1f\u4e94\u7ef4\u5462\uff1f<\/p>\n\n\n\n<p>\u540d\u5b57\u4f1a\u8d8a\u6765\u8d8a\u4e71\u3002<\/p>\n\n\n\n<p>\u800c NumPy \u7684\u505a\u6cd5\u5f88\u7edf\u4e00\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u4e2a\u65b9\u5411\uff1a<code>axis=0<\/code><\/li>\n\n\n\n<li>\u7b2c\u4e8c\u4e2a\u65b9\u5411\uff1a<code>axis=1<\/code><\/li>\n\n\n\n<li>\u7b2c\u4e09\u4e2a\u65b9\u5411\uff1a<code>axis=2<\/code><\/li>\n\n\n\n<li>\u7b2c\u56db\u4e2a\u65b9\u5411\uff1a<code>axis=3<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u6837\u4e0d\u7ba1\u51e0\u7ef4\uff0c\u90fd\u80fd\u63cf\u8ff0\u3002<\/p>\n\n\n\n<p>\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u6570\u5b66\u548c\u7f16\u7a0b\u91cc\u66f4\u559c\u6b22\u7528\u201c\u7ef4\u5ea6\u7f16\u53f7\u201d\u800c\u4e0d\u662f\u201c\u884c\u5217\u201d\u8fd9\u79cd\u53ea\u9002\u5408\u4e8c\u7ef4\u7684\u540d\u5b57\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u539f\u56e0\u4e09\uff1a\u5f88\u591a\u51fd\u6570\u672c\u6765\u5c31\u4e0d\u662f\u201c\u6309\u884c\/\u6309\u5217\u201d\u90a3\u4e48\u7b80\u5355<\/h3>\n\n\n\n<p>\u6bd4\u5982 <code>sum()<\/code>\u3001<code>max()<\/code>\u3001<code>mean()<\/code>\u3001<code>argmax()<\/code> \u8fd9\u4e9b\u51fd\u6570\uff0c\u90fd\u6709 <code>axis<\/code> \u53c2\u6570\u3002<\/p>\n\n\n\n<p>\u5982\u679c NumPy \u5199\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sum(row=?)\nsum(col=?)\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u4e00\u7ef4\u600e\u4e48\u529e\uff1f\u4e09\u7ef4\u600e\u4e48\u529e\uff1f\u56db\u7ef4\u600e\u4e48\u529e\uff1f<\/p>\n\n\n\n<p>\u5b83\u6839\u672c\u4e0d\u7edf\u4e00\u3002<\/p>\n\n\n\n<p>\u800c\u7528 <code>axis<\/code> \u5c31\u5f88\u7edf\u4e00\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.sum(a, axis=0)\nnumpy.sum(a, axis=1)\nnumpy.sum(a, axis=2)\n<\/code><\/pre>\n\n\n\n<p>\u65e0\u8bba\u6570\u7ec4\u51e0\u7ef4\uff0c\u8fd9\u5957\u5199\u6cd5\u90fd\u6210\u7acb\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u4f60\u53ef\u4ee5\u628a <code>axis<\/code> \u770b\u6210 NumPy \u7684\u201c\u7edf\u4e00\u8bed\u8a00\u201d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5728\u4e8c\u7ef4\u6570\u7ec4\u91cc\uff0c\u4e3a\u4ec0\u4e48 <code>axis=0<\/code> \u770b\u8d77\u6765\u50cf\u201c\u884c\u65b9\u5411\u201d\uff1f<\/h2>\n\n\n\n<p>\u8fd9\u4e5f\u662f\u4e00\u4e2a\u7279\u522b\u5bb9\u6613\u8ba9\u4eba\u7ed5\u8fdb\u53bb\u7684\u5730\u65b9\u3002<\/p>\n\n\n\n<p>\u5148\u770b\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a = numpy.array(&#91;\n    &#91;1, 2, 3],\n    &#91;4, 5, 6]\n])\n<\/code><\/pre>\n\n\n\n<p>\u5b83\u7684\u5f62\u72b6\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(2, 3)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u8868\u793a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c 0 \u7ef4\u5927\u5c0f\u662f 2\uff0c\u4e5f\u5c31\u662f\u6709 2 \u884c<\/li>\n\n\n\n<li>\u7b2c 1 \u7ef4\u5927\u5c0f\u662f 3\uff0c\u4e5f\u5c31\u662f\u6709 3 \u5217<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\u8fd9\u91cc\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code> \u5bf9\u5e94\u7684\u662f\u201c\u884c\u8fd9\u4e00\u7ef4\u201d<\/li>\n\n\n\n<li><code>axis=1<\/code> \u5bf9\u5e94\u7684\u662f\u201c\u5217\u8fd9\u4e00\u7ef4\u201d<\/li>\n<\/ul>\n\n\n\n<p>\u4f46\u662f\u8981\u6ce8\u610f\uff1a<\/p>\n\n\n\n<p><strong>\u201caxis=0 \u662f\u884c\u8fd9\u4e00\u7ef4\u201d<\/strong><br>\u4e0d\u7b49\u4e8e<br><strong>\u201caxis=0 \u5c31\u662f\u6a2a\u7740\u7684\u4e00\u884c\u201d<\/strong><\/p>\n\n\n\n<p>\u5b83\u8bf4\u7684\u662f\u201c\u7b2c 0 \u4e2a\u7ef4\u5ea6\u201d\uff0c\u4e0d\u662f\u8bf4\u201c\u7b2c 0 \u884c\u201d\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u533a\u522b\u5f88\u91cd\u8981\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u6709\u65f6\u5019\u4f1a\u89c9\u5f97 <code>axis=0<\/code> \u662f\u201c\u4e0a\u4e0b\u201d\uff0c\u6709\u65f6\u5019\u53c8\u50cf\u662f\u201c\u6309\u5217\u201d\uff1f<\/h2>\n\n\n\n<p>\u8fd9\u662f\u521d\u5b66\u8005\u6700\u5e38\u89c1\u7684\u56f0\u60d1\u4e4b\u4e00\u3002<\/p>\n\n\n\n<p>\u539f\u56e0\u662f\uff1a<\/p>\n\n\n\n<p><strong><code>axis<\/code> \u5728\u4e0d\u540c\u51fd\u6570\u91cc\uff0c\u8868\u793a\u7684\u4e0d\u662f\u5b8c\u5168\u540c\u4e00\u5c42\u76f4\u89c9\u3002<\/strong><\/p>\n\n\n\n<p>\u4f8b\u5982\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5728 <code>concatenate()<\/code> \u91cc<\/h3>\n\n\n\n<p><code>axis=0<\/code> \u8868\u793a\u6cbf\u7740\u7b2c 0 \u8f74\u62fc\u63a5\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u4e8c\u7ef4\u6570\u7ec4\u6765\u8bf4\uff0c\u4f60\u4f1a\u76f4\u89c2\u5730\u611f\u89c9\u6210\uff1a<\/p>\n\n\n\n<p><strong>\u4e0a\u4e0b\u62fc\u63a5<\/strong><\/p>\n\n\n\n<p>\u56e0\u4e3a\u884c\u6570\u589e\u52a0\u4e86\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5728 <code>sum()<\/code> \u91cc<\/h3>\n\n\n\n<p>\u5982\u679c\u4f60\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.sum(a, axis=0)\n<\/code><\/pre>\n\n\n\n<p>\u4f60\u4f1a\u53d1\u73b0\u7ed3\u679c\u50cf\u662f\u5728\u201c\u6309\u5217\u6c42\u548c\u201d\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a = numpy.array(&#91;\n    &#91;1, 2, 3],\n    &#91;4, 5, 6]\n])\n\nprint(numpy.sum(a, axis=0))\n<\/code><\/pre>\n\n\n\n<p>\u7ed3\u679c\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;5 7 9]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u628a\u6bcf\u4e00\u5217\u52a0\u8d77\u6765\u4e86\u3002<\/p>\n\n\n\n<p>\u4e8e\u662f\u5f88\u591a\u4eba\u5c31\u61f5\u4e86\uff1a<\/p>\n\n\n\n<p>\u201c\u4e0d\u662f\u8bf4 <code>axis=0<\/code> \u662f\u884c\u5417\uff1f\u4e3a\u4ec0\u4e48\u8fd9\u91cc\u53d8\u6210\u6309\u5217\u4e86\uff1f\u201d<\/p>\n\n\n\n<p>\u5176\u5b9e\u5e76\u4e0d\u77db\u76fe\u3002<\/p>\n\n\n\n<p>\u56e0\u4e3a\u5728 <code>sum(axis=0)<\/code> \u91cc\uff0c\u610f\u601d\u662f\uff1a<\/p>\n\n\n\n<p><strong>\u6cbf\u7740\u7b2c 0 \u8f74\u53bb\u538b\u7f29\u3001\u53bb\u5408\u5e76\u3002<\/strong><\/p>\n\n\n\n<p>\u7b2c 0 \u8f74\u662f\u201c\u884c\u8fd9\u4e00\u7ef4\u201d\uff0c\u4f60\u628a\u201c\u884c\u8fd9\u4e00\u7ef4\u201d\u538b\u6389\u4e4b\u540e\uff0c\u5269\u4e0b\u7684\u81ea\u7136\u5c31\u662f\u6bcf\u4e00\u5217\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728 <code>concatenate(axis=0)<\/code> \u4e2d\uff0c\u8868\u793a\u6cbf\u7b2c 0 \u7ef4\u53bb\u6269\u5c55<\/li>\n\n\n\n<li>\u5728 <code>sum(axis=0)<\/code> \u4e2d\uff0c\u8868\u793a\u6cbf\u7b2c 0 \u7ef4\u53bb\u6c47\u603b<\/li>\n<\/ul>\n\n\n\n<p>\u51fd\u6570\u52a8\u4f5c\u4e0d\u540c\uff0c\u4f60\u770b\u5230\u7684\u76f4\u89c2\u6548\u679c\u4e5f\u4e0d\u540c\u3002<\/p>\n\n\n\n<p>\u4f46\u5e95\u5c42\u903b\u8f91\u5176\u5b9e\u662f\u4e00\u81f4\u7684\uff1a<\/p>\n\n\n\n<p><strong>\u90fd\u662f\u9488\u5bf9\u7b2c 0 \u8f74\u8fdb\u884c\u64cd\u4f5c\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\">\u6240\u4ee5 <code>axis<\/code> \u6700\u51c6\u786e\u7684\u7406\u89e3\u65b9\u5f0f\u662f\u4ec0\u4e48<\/h2>\n\n\n\n<p>\u5982\u679c\u4f60\u60f3\u5efa\u7acb\u66f4\u7a33\u7684\u7406\u89e3\uff0c\u4e0d\u8981\u6b7b\u8bb0\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code> = \u884c<\/li>\n\n\n\n<li><code>axis=1<\/code> = \u5217<\/li>\n<\/ul>\n\n\n\n<p>\u56e0\u4e3a\u8fd9\u4e2a\u8bb0\u6cd5\u53ea\u5728\u4e8c\u7ef4\u91cc\u90e8\u5206\u597d\u7528\uff0c\u800c\u4e14\u4e00\u5230\u522b\u7684\u51fd\u6570\u5c31\u5bb9\u6613\u6df7\u4e71\u3002<\/p>\n\n\n\n<p>\u66f4\u7a33\u7684\u7406\u89e3\u5e94\u8be5\u662f\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><code>axis<\/code> \u8868\u793a\u201c\u7b2c\u51e0\u4e2a\u7ef4\u5ea6\u201d<\/h3>\n\n\n\n<p>\u7136\u540e\u518d\u7ed3\u5408\u51fd\u6570\u53bb\u770b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u662f\u6cbf\u8fd9\u4e2a\u7ef4\u5ea6\u62fc\u63a5<\/li>\n\n\n\n<li>\u8fd8\u662f\u6cbf\u8fd9\u4e2a\u7ef4\u5ea6\u6c42\u548c<\/li>\n\n\n\n<li>\u8fd8\u662f\u6cbf\u8fd9\u4e2a\u7ef4\u5ea6\u627e\u6700\u5927\u503c<\/li>\n\n\n\n<li>\u8fd8\u662f\u6cbf\u8fd9\u4e2a\u7ef4\u5ea6\u91cd\u6392<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u6837\u7406\u89e3\u4f1a\u66f4\u901a\u7528\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u4e2a\u7c7b\u6bd4\uff1a\u628a\u6570\u7ec4\u60f3\u6210\u4e00\u4e2a\u76d2\u5b50<\/h2>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u628a\u6570\u7ec4\u60f3\u6210\u4e00\u4e2a\u6709\u591a\u4e2a\u65b9\u5411\u7684\u76d2\u5b50\u3002<\/p>\n\n\n\n<p>\u4e8c\u7ef4\u6570\u7ec4\u50cf\u4e00\u5f20\u8868\uff0c\u6709\u4e24\u4e2a\u65b9\u5411\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e0a\u4e0b\u65b9\u5411<\/li>\n\n\n\n<li>\u5de6\u53f3\u65b9\u5411<\/li>\n<\/ul>\n\n\n\n<p>\u4e09\u7ef4\u6570\u7ec4\u50cf\u5f88\u591a\u5f20\u8868\u53e0\u8d77\u6765\uff0c\u5c31\u6709\u4e09\u4e2a\u65b9\u5411\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u4e2a\u65b9\u5411<\/li>\n\n\n\n<li>\u7b2c\u4e8c\u4e2a\u65b9\u5411<\/li>\n\n\n\n<li>\u7b2c\u4e09\u4e2a\u65b9\u5411<\/li>\n<\/ul>\n\n\n\n<p>NumPy \u4e0d\u5173\u5fc3\u4f60\u628a\u5b83\u53eb\u201c\u884c\u201d\u201c\u5217\u201d\u201c\u6df1\u5ea6\u201d\u8fd8\u662f\u522b\u7684\u540d\u5b57\u3002<\/p>\n\n\n\n<p>\u5b83\u53ea\u5173\u5fc3\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c 0 \u4e2a\u65b9\u5411<\/li>\n\n\n\n<li>\u7b2c 1 \u4e2a\u65b9\u5411<\/li>\n\n\n\n<li>\u7b2c 2 \u4e2a\u65b9\u5411<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u5c31\u50cf\u5750\u6807\u8f74\u4e00\u6837\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>x \u8f74<\/li>\n\n\n\n<li>y \u8f74<\/li>\n\n\n\n<li>z \u8f74<\/li>\n<\/ul>\n\n\n\n<p>\u4f60\u4e0d\u4f1a\u95ee\u201c\u4e3a\u4ec0\u4e48\u4e0d\u7528\u5de6\u548c\u53f3\u6765\u547d\u540d x \u8f74\u201d\uff0c\u56e0\u4e3a\u5750\u6807\u8f74\u672c\u6765\u5c31\u662f\u7edf\u4e00\u62bd\u8c61\u3002<\/p>\n\n\n\n<p>NumPy \u7684 <code>axis<\/code> \u4e5f\u662f\u7c7b\u4f3c\u7684\u601d\u8def\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f60\u73b0\u9636\u6bb5\u6700\u8be5\u600e\u4e48\u8bb0<\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u521d\u5b66\u9636\u6bb5\uff0c\u6211\u5efa\u8bae\u4f60\u5206\u4e24\u5c42\u8bb0\u5fc6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e00\u5c42\uff1a\u505a\u9898\u65f6\u7684\u76f4\u89c2\u8bb0\u6cd5<\/h3>\n\n\n\n<p>\u5728\u4e8c\u7ef4\u6570\u7ec4\u91cc\u5148\u8bb0\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code>\uff1a\u548c\u201c\u4e0a\u4e0b\u201d\u6709\u5173<\/li>\n\n\n\n<li><code>axis=1<\/code>\uff1a\u548c\u201c\u5de6\u53f3\u201d\u6709\u5173<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u4e2a\u8bb0\u6cd5\u6700\u9002\u5408\u4f60\u73b0\u5728\u505a <code>concatenate()<\/code>\u3001<code>sum()<\/code>\u3001<code>reshape()<\/code> \u76f8\u5173\u7684\u57fa\u7840\u9898\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e8c\u5c42\uff1a\u66f4\u672c\u8d28\u7684\u7406\u89e3<\/h3>\n\n\n\n<p>\u540c\u65f6\u518d\u8865\u4e0a\u4e00\u4e2a\u66f4\u5e95\u5c42\u7684\u8ba4\u8bc6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>axis=0<\/code> \u662f\u7b2c 0 \u4e2a\u7ef4\u5ea6<\/li>\n\n\n\n<li><code>axis=1<\/code> \u662f\u7b2c 1 \u4e2a\u7ef4\u5ea6<\/li>\n\n\n\n<li><code>axis=2<\/code> \u662f\u7b2c 2 \u4e2a\u7ef4\u5ea6<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u6837\u4ee5\u540e\u4f60\u5b66\u5230\u4e09\u7ef4\u6570\u7ec4\u3001\u56fe\u50cf\u6570\u7ec4\u3001\u6df1\u5ea6\u5b66\u4e60\u5f20\u91cf\u65f6\uff0c\u5c31\u4e0d\u4f1a\u5361\u4f4f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u5f20\u5bf9\u6bd4\u8868\uff1a\u4e3a\u4ec0\u4e48\u4e0d\u7528 <code>row\/col<\/code><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5199\u6cd5<\/th><th>\u9002\u7528\u8303\u56f4<\/th><th>\u4f18\u70b9<\/th><th>\u7f3a\u70b9<\/th><\/tr><\/thead><tbody><tr><td><code>row \/ col<\/code><\/td><td>\u4e3b\u8981\u9002\u5408\u4e8c\u7ef4<\/td><td>\u76f4\u89c2<\/td><td>\u4e0d\u80fd\u63a8\u5e7f\u5230\u4e00\u7ef4\u3001\u4e09\u7ef4\u3001\u66f4\u591a\u7ef4<\/td><\/tr><tr><td><code>axis=0 \/ axis=1 \/ axis=2<\/code><\/td><td>\u9002\u5408\u4efb\u610f\u7ef4\u6570\u7ec4<\/td><td>\u7edf\u4e00\u3001\u901a\u7528\u3001\u53ef\u6269\u5c55<\/td><td>\u521d\u5b66\u65f6\u4e0d\u5982\u884c\u5217\u76f4\u89c2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u6240\u4ee5\u4e0d\u662f <code>row\/col<\/code> \u4e0d\u597d\uff0c\u800c\u662f\u5b83\u7684\u9002\u7528\u8303\u56f4\u592a\u7a84\u3002<br>NumPy \u4f5c\u4e3a\u4e00\u4e2a\u5904\u7406\u901a\u7528\u591a\u7ef4\u6570\u7ec4\u7684\u5e93\uff0c\u5fc5\u987b\u91c7\u7528\u66f4\u901a\u7528\u7684\u8868\u8fbe\u65b9\u5f0f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56de\u5230\u4f60\u6700\u5173\u5fc3\u7684\u4e00\u70b9\uff1a\u4e3a\u4ec0\u4e48 NumPy \u8981\u8fd9\u6837\u8bbe\u8ba1<\/h2>\n\n\n\n<p>\u56e0\u4e3a NumPy \u4e0d\u662f\u201c\u4e13\u95e8\u5904\u7406\u8868\u683c\u201d\u7684\u5e93\uff0c\u800c\u662f\u201c\u5904\u7406\u591a\u7ef4\u6570\u7ec4\u201d\u7684\u5e93\u3002<\/p>\n\n\n\n<p>\u53ea\u8981\u5b83\u8981\u5904\u7406\u7684\u662f\u591a\u7ef4\u6570\u7ec4\uff0c\u5c31\u4e0d\u80fd\u628a\u63a5\u53e3\u8bbe\u8ba1\u6b7b\u5728\u201c\u884c\u548c\u5217\u201d\u4e0a\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u5b83\u9009\u62e9\u4e86\u66f4\u62bd\u8c61\u3001\u4f46\u4e5f\u66f4\u5f3a\u5927\u7684\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<p><strong>\u7528 <code>axis<\/code> \u8868\u793a\u7ef4\u5ea6\u7f16\u53f7\u3002<\/strong><\/p>\n\n\n\n<p>\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u4f60\u4f1a\u770b\u5230\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>axis=0\naxis=1\naxis=2\n<\/code><\/pre>\n\n\n\n<p>\u800c\u4e0d\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>row\ncol\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\">\u672c\u8282\u5c0f\u7ed3<\/h2>\n\n\n\n<p>\u201c\u4e3a\u4ec0\u4e48\u53eb <code>axis=0<\/code>\u3001<code>axis=1<\/code>\uff0c\u800c\u4e0d\u662f <code>row<\/code> \u6216 <code>col<\/code>\uff1f\u201d<br>\u6700\u6838\u5fc3\u7684\u7b54\u6848\u5c31\u662f\u4e00\u53e5\u8bdd\uff1a<\/p>\n\n\n\n<p><strong>\u56e0\u4e3a <code>row<\/code> \u548c <code>col<\/code> \u53ea\u9002\u5408\u4e8c\u7ef4\u6570\u7ec4\uff0c\u800c NumPy \u5904\u7406\u7684\u662f\u4efb\u610f\u7ef4\u5ea6\u7684\u6570\u7ec4\uff0c\u6240\u4ee5\u5fc5\u987b\u7528\u66f4\u901a\u7528\u7684 <code>axis<\/code>\u3002<\/strong><\/p>\n\n\n\n<p>\u4f60\u73b0\u5728\u53ef\u4ee5\u8fd9\u6837\u8bb0\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>axis<\/code> \u672c\u8d28\u4e0a\u662f\u201c\u7b2c\u51e0\u4e2a\u7ef4\u5ea6\u201d<\/li>\n\n\n\n<li>\u4e8c\u7ef4\u91cc\u5b83\u53ef\u4ee5\u6682\u65f6\u5bf9\u5e94\u6210\u201c\u884c\u65b9\u5411 \/ \u5217\u65b9\u5411\u201d<\/li>\n\n\n\n<li>\u4f46 NumPy \u4e4b\u6240\u4ee5\u4e0d\u7528 <code>row\/col<\/code>\uff0c\u662f\u4e3a\u4e86\u9002\u914d\u4e00\u7ef4\u3001\u4e09\u7ef4\u3001\u66f4\u591a\u7ef4\u6570\u7ec4<\/li>\n\n\n\n<li>\u6240\u4ee5 <code>axis<\/code> \u662f\u4e00\u4e2a\u66f4\u62bd\u8c61\uff0c\u4f46\u66f4\u7edf\u4e00\u7684\u8bbe\u8ba1<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5c0f\u7ec3\u4e60<\/h2>\n\n\n\n<p>\u5148\u4e0d\u5199\u4ee3\u7801\uff0c\u53ea\u601d\u8003\u4e0b\u9762\u8fd9\u4e2a\u95ee\u9898\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a.shape = (2, 3, 4)\n<\/code><\/pre>\n\n\n\n<p>\u8bf7\u4f60\u8bd5\u7740\u56de\u7b54\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u8fd9\u4e2a\u6570\u7ec4\u4e00\u5171\u6709\u51e0\u4e2a\u8f74\uff1f<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u5206\u522b\u662f\u54ea\u51e0\u4e2a <code>axis<\/code>\uff1f<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u4e3a\u4ec0\u4e48\u8fd9\u65f6\u5019\u518d\u7528 <code>row<\/code> \u548c <code>col<\/code> \u5c31\u4e0d\u591f\u4e86\uff1f<\/h3>\n\n\n\n<p>\u63d0\u793a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>shape \u91cc\u6709\u51e0\u4e2a\u6570\u5b57\uff0c\u5c31\u6709\u51e0\u4e2a\u8f74<\/li>\n\n\n\n<li>\u8f74\u4ece 0 \u5f00\u59cb\u7f16\u53f7\uff0c\u4e0d\u662f\u4ece 1 \u5f00\u59cb<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>axis \u8fd9\u4e2a\u53c2\u6570\u5230\u5e95\u662f\u4ec0\u4e48\u610f\u601d \u4f60\u73b0\u5728\u53ef\u4ee5\u5148\u628a axis \u6682\u65f6\u7406\u89e3\u6210\u4e00\u53e5\u6700\u5b9e\u7528\u7684\u8bdd\uff1a axis \u51b3\u5b9a\u4f60\u201c\u6cbf\u7740 [&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-2060","post","type-post","status-publish","format-standard","hentry","category-text"],"_links":{"self":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2060","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=2060"}],"version-history":[{"count":1,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2060\/revisions"}],"predecessor-version":[{"id":2062,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2060\/revisions\/2062"}],"wp:attachment":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=2060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=2060"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=2060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}