{"id":2067,"date":"2026-04-20T22:35:01","date_gmt":"2026-04-20T14:35:01","guid":{"rendered":"http:\/\/www.preluna.xyz\/?p=2067"},"modified":"2026-04-20T22:35:02","modified_gmt":"2026-04-20T14:35:02","slug":"numpy-eyeshape-%e4%bc%a0%e5%8f%82","status":"publish","type":"post","link":"http:\/\/www.preluna.xyz\/index.php\/2026\/04\/20\/numpy-eyeshape-%e4%bc%a0%e5%8f%82\/preluna\/text\/","title":{"rendered":"numpy.eye(shape, &#8230;) \u4f20\u53c2"},"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\/numpy.eyeshape-.-\u4f20\u53c2.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"803\" height=\"648\" data-original=\"http:\/\/www.preluna.xyz\/wp-content\/uploads\/2026\/04\/numpy.eyeshape-.-\u4f20\u53c2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2068\"  sizes=\"auto, (max-width: 803px) 100vw, 803px\" \/><\/div><\/figure>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\nshape = tuple(map(int, input().split()))\nprint (numpy.eye(shape, k = 1))   <\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u8fd9\u6bb5\u4ee3\u7801\u539f\u672c\u60f3\u505a\u4ec0\u4e48<\/h2>\n\n\n\n<p>\u76ee\u6807\u5176\u5b9e\u5f88\u660e\u786e\uff1a\u8bfb\u53d6\u4e00\u884c\u8f93\u5165\u91cc\u7684 <code>N M<\/code>\uff0c\u7136\u540e\u751f\u6210\u4e00\u4e2a <code>N x M<\/code> \u7684\u6570\u7ec4\uff0c\u4e3b\u5bf9\u89d2\u7ebf\u662f <code>1<\/code>\uff0c\u5176\u4ed6\u4f4d\u7f6e\u662f <code>0<\/code>\u3002\u60f3\u5230\u7528 <code>numpy.eye()<\/code> \u6765\u505a\uff0c\u8fd9\u4e2a\u601d\u8def\u672c\u8eab\u662f\u5bf9\u7684\uff0c\u56e0\u4e3a <code>eye<\/code> \u5c31\u662f\u4e13\u95e8\u751f\u6210\u201c\u5355\u4f4d\u77e9\u9635\/\u5bf9\u89d2\u7ebf\u77e9\u9635\u201d\u8fd9\u4e00\u7c7b\u6570\u7ec4\u7684\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u95ee\u9898\u5b9a\u4f4d<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\nshape = tuple(map(int, input().split()))\nprint(numpy.eye(shape, k = 1))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u4e3b\u8981\u6709\u4e24\u4e2a\u95ee\u9898\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e00\u4e2a\u4e3b\u8981\u95ee\u9898\uff1a<code>numpy.eye(shape, ...)<\/code> \u4f20\u53c2\u65b9\u5f0f\u9519\u4e86<\/h3>\n\n\n\n<p><code>numpy.eye()<\/code> \u9700\u8981\u7684\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(N, M=None, k=0)\n<\/code><\/pre>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u5e0c\u671b\u62ff\u5230\u7684\u662f\u4e24\u4e2a\u6574\u6570\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>N<\/code>\uff1a\u884c\u6570<\/li>\n\n\n\n<li><code>M<\/code>\uff1a\u5217\u6570<\/li>\n<\/ul>\n\n\n\n<p>\u4f46\u4f60\u4f20\u8fdb\u53bb\u7684\u662f\u4e00\u4e2a\u5143\u7ec4 <code>shape<\/code>\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>shape = (3, 3)\n<\/code><\/pre>\n\n\n\n<p>\u4e8e\u662f\u5b9e\u9645\u76f8\u5f53\u4e8e\u5199\u6210\u4e86\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye((3, 3), k=1)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u5c31\u4e0d\u5bf9\u4e86\u3002<code>eye()<\/code> \u4e0d\u662f\u8981\u4e00\u4e2a\u201c\u5f62\u72b6\u5143\u7ec4\u201d\uff0c\u800c\u662f\u8981\u4e24\u4e2a\u5355\u72ec\u7684\u6570\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\">\u7b2c\u4e8c\u4e2a\u95ee\u9898\uff1a<code>k=1<\/code> \u4e0d\u662f\u4e3b\u5bf9\u89d2\u7ebf<\/h3>\n\n\n\n<p>\u9898\u76ee\u8981\u6c42\u7684\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3b\u5bf9\u89d2\u7ebf\u4e3a <code>1<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u4e3b\u5bf9\u89d2\u7ebf\u5bf9\u5e94\u7684\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>k = 0\n<\/code><\/pre>\n\n\n\n<p>\u800c\u4f60\u5199\u7684\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>k = 1\n<\/code><\/pre>\n\n\n\n<p>\u8868\u793a\u7684\u662f\u201c\u4e3b\u5bf9\u89d2\u7ebf\u4e0a\u65b9\u90a3\u4e00\u6761\u5bf9\u89d2\u7ebf\u201d\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982 <code>3 x 3<\/code> \u65f6\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 3, k=1)\n<\/code><\/pre>\n\n\n\n<p>\u4f1a\u5f97\u5230\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;0. 1. 0.]\n &#91;0. 0. 1.]\n &#91;0. 0. 0.]]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u663e\u7136\u4e0d\u662f\u9898\u76ee\u8981\u7684\u7ed3\u679c\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\u4f1a\u9519<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">1. <code>shape<\/code> \u662f\u5143\u7ec4\uff0c\u4f46 <code>eye()<\/code> \u8fd9\u91cc\u8981\u7684\u662f\u6574\u6570\u53c2\u6570<\/h2>\n\n\n\n<p>\u524d\u9762\u8fd9\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>shape = tuple(map(int, input().split()))\n<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u8f93\u5165\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>3 3\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u4e48 <code>shape<\/code> \u7684\u503c\u5c31\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(3, 3)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u5143\u7ec4\u3002<\/p>\n\n\n\n<p>\u4f46 <code>numpy.eye()<\/code> \u7684\u53c2\u6570\u8bbe\u8ba1\u4e0d\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(shape)\n<\/code><\/pre>\n\n\n\n<p>\u800c\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(N, M)\n<\/code><\/pre>\n\n\n\n<p>\u4e5f\u5c31\u662f\u5b83\u60f3\u770b\u5230\u7684\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 3)\n<\/code><\/pre>\n\n\n\n<p>\u800c\u4e0d\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye((3, 3))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u5f88\u591a\u521d\u5b66\u8005\u7279\u522b\u5bb9\u6613\u6df7\u6dc6\u7684\u5730\u65b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6709\u4e9b\u51fd\u6570\u8981\u201cshape \u5143\u7ec4\u201d\uff0c\u6bd4\u5982 <code>numpy.zeros(shape)<\/code><\/li>\n\n\n\n<li>\u6709\u4e9b\u51fd\u6570\u8981\u201c\u62c6\u5f00\u7684\u884c\u5217\u53c2\u6570\u201d\uff0c\u6bd4\u5982 <code>numpy.eye(N, M)<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u4f60\u8fd9\u91cc\u5c31\u662f\u628a\u8fd9\u4e24\u79cd\u5199\u6cd5\u6df7\u5728\u4e00\u8d77\u4e86\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. <code>k<\/code> \u63a7\u5236\u7684\u662f\u201c\u7b2c\u51e0\u6761\u5bf9\u89d2\u7ebf\u201d<\/h2>\n\n\n\n<p><code>numpy.eye()<\/code> \u91cc\u7684 <code>k<\/code> \u4e0d\u662f\u968f\u4fbf\u5199\u7684\uff0c\u5b83\u6709\u660e\u786e\u542b\u4e49\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>k=0<\/code>\uff1a\u4e3b\u5bf9\u89d2\u7ebf<\/li>\n\n\n\n<li><code>k=1<\/code>\uff1a\u4e3b\u5bf9\u89d2\u7ebf\u4e0a\u4e00\u6761<\/li>\n\n\n\n<li><code>k=-1<\/code>\uff1a\u4e3b\u5bf9\u89d2\u7ebf\u4e0b\u4e00\u6761<\/li>\n<\/ul>\n\n\n\n<p>\u9898\u76ee\u5199\u7684\u662f main diagonal\uff0c\u4e5f\u5c31\u662f\u4e3b\u5bf9\u89d2\u7ebf\uff0c\u6240\u4ee5\u8fd9\u91cc\u5e94\u8be5\u7528\u9ed8\u8ba4\u503c <code>0<\/code>\uff0c\u751a\u81f3\u53ef\u4ee5\u4e0d\u5199 <code>k<\/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\">\u6700\u5c0f\u6539\u52a8\u4fee\u590d\u7248\u672c<\/h2>\n\n\n\n<p>\u5982\u679c\u60f3\u5c3d\u91cf\u4fdd\u7559\u73b0\u5728\u7684\u5199\u6cd5\uff0c\u53ea\u505a\u6700\u5c0f\u4fee\u6539\uff0c\u90a3\u4e48\u53ef\u4ee5\u8fd9\u6837\u6539\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\nnumpy.set_printoptions(legacy='1.13')\n\nshape = tuple(map(int, input().split()))\nprint(numpy.eye(*shape, k=0))\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\">\u4fee\u6539\u8bf4\u660e<\/h2>\n\n\n\n<p>\u8fd9\u91cc\u6211\u53ea\u6539\u4e86\u4e24\u70b9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6539\u52a8 1\uff1a<code>shape<\/code> \u524d\u9762\u52a0\u4e86 <code>*<\/code><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(*shape, k=0)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a <code>*shape<\/code> \u7684\u610f\u601d\u662f\u201c\u62c6\u5305\u201d\u3002<\/p>\n\n\n\n<p>\u5982\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>shape = (3, 3)\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u4e48\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(*shape, k=0)\n<\/code><\/pre>\n\n\n\n<p>\u5c31\u7b49\u4ef7\u4e8e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 3, k=0)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u5c31\u521a\u597d\u7b26\u5408 <code>eye()<\/code> \u8981\u7684\u53c2\u6570\u5f62\u5f0f\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\">\u6539\u52a8 2\uff1a\u628a <code>k=1<\/code> \u6539\u6210 <code>k=0<\/code><\/h3>\n\n\n\n<p>\u56e0\u4e3a\u9898\u76ee\u8981\u7684\u662f\u4e3b\u5bf9\u89d2\u7ebf\uff0c\u6240\u4ee5\u5fc5\u987b\u7528 <code>k=0<\/code>\u3002<\/p>\n\n\n\n<p>\u5176\u5b9e\u8fd9\u91cc\u8fd8\u53ef\u4ee5\u76f4\u63a5\u7701\u7565\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>print(numpy.eye(*shape))\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a <code>k<\/code> \u9ed8\u8ba4\u5c31\u662f <code>0<\/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\">\u66f4\u89c4\u8303\u7248\u672c<\/h2>\n\n\n\n<p>\u66f4\u89c4\u8303\u3001\u66f4\u6e05\u695a\u7684\u5199\u6cd5\uff0c\u4e00\u822c\u4e0d\u5199 <code>shape<\/code>\uff0c\u800c\u662f\u76f4\u63a5\u628a\u884c\u5217\u62c6\u5f00\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\nnumpy.set_printoptions(legacy='1.13')\n\nN, M = map(int, input().split())\nprint(numpy.eye(N, M))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u7248\u672c\u66f4\u9002\u5408\u521d\u5b66\u8005\u590d\u4e60\uff0c\u56e0\u4e3a\u4e00\u773c\u5c31\u80fd\u770b\u61c2\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>N<\/code> \u662f\u884c\u6570<\/li>\n\n\n\n<li><code>M<\/code> \u662f\u5217\u6570<\/li>\n<\/ul>\n\n\n\n<p>\u4e0d\u4f1a\u628a\u201c\u5143\u7ec4 shape\u201d\u548c\u201c\u4e24\u4e2a\u72ec\u7acb\u53c2\u6570\u201d\u6df7\u5728\u4e00\u8d77\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u8865\u5145\u8bf4\u660e\uff1a\u4e3a\u4ec0\u4e48\u8fd9\u9898\u91cc\u8fd8\u8981\u52a0 <code>numpy.set_printoptions(legacy='1.13')<\/code><\/h2>\n\n\n\n<p>\u9898\u76ee\u5907\u6ce8\u91cc\u4e13\u95e8\u8bf4\u4e86\u8981\u52a0\u8fd9\u4e00\u53e5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.set_printoptions(legacy='1.13')\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u56e0\u4e3a\u5e73\u53f0\u5e0c\u671b\u4f60\u7684\u8f93\u51fa\u683c\u5f0f\u548c\u5b83\u7684\u65e7\u7248 NumPy \u663e\u793a\u683c\u5f0f\u4e00\u81f4\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\u5b83\u60f3\u770b\u5230\u7684\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1. 0. 0.]\n &#91;0. 1. 0.]\n &#91;0. 0. 1.]]\n<\/code><\/pre>\n\n\n\n<p>\u6709\u65f6\u5019\u4e0d\u540c\u7248\u672c\u7684 NumPy \u5728\u5c0f\u6570\u663e\u793a\u3001\u5bf9\u9f50\u65b9\u5f0f\u4e0a\u4f1a\u7565\u6709\u4e0d\u540c\u3002\u4e3a\u4e86\u907f\u514d\u201c\u660e\u660e\u6570\u7ec4\u5bf9\u4e86\uff0c\u4f46\u663e\u793a\u683c\u5f0f\u4e0d\u4e00\u81f4\u201d\uff0c\u9898\u76ee\u624d\u8981\u6c42\u4f60\u52a0\u8fd9\u4e00\u53e5\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u8fd9\u9898\u6700\u597d\u5b8c\u6574\u5199\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\nnumpy.set_printoptions(legacy='1.13')\n\nN, M = map(int, input().split())\nprint(numpy.eye(N, M))\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\">\u8fd9\u9053\u9898\u91cc\u6700\u5bb9\u6613\u6df7\u6dc6\u7684\u4e24\u4e2a\u70b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><code>numpy.zeros(shape)<\/code> \u548c <code>numpy.eye(N, M)<\/code> \u7684\u53c2\u6570\u98ce\u683c\u4e0d\u540c<\/h3>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u5178\u578b\u7684\u6613\u9519\u70b9\u3002<\/p>\n\n\n\n<p><code>zeros<\/code> \u5e38\u8fd9\u6837\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((3, 3))\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a\u5b83\u8981\u7684\u662f\u4e00\u4e2a\u5f62\u72b6\u5143\u7ec4\u3002<\/p>\n\n\n\n<p>\u4f46 <code>eye<\/code> \u5e38\u8fd9\u6837\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 3)\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a\u5b83\u8981\u7684\u662f\u884c\u6570\u548c\u5217\u6570\u4e24\u4e2a\u53c2\u6570\u3002<\/p>\n\n\n\n<p>\u867d\u7136\u5b83\u4eec\u90fd\u548c\u201c\u751f\u6210\u6570\u7ec4\u201d\u6709\u5173\uff0c\u4f46\u53c2\u6570\u683c\u5f0f\u4e0d\u4e00\u6837\uff0c\u4e0d\u80fd\u673a\u68b0\u7167\u642c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><code>k=1<\/code> \u5e76\u4e0d\u662f\u201c\u7b2c\u4e00\u4e2a\u5bf9\u89d2\u7ebf\u201d\uff0c\u800c\u662f\u201c\u4e0a\u79fb\u4e00\u6761\u5bf9\u89d2\u7ebf\u201d<\/h3>\n\n\n\n<p>\u5f88\u591a\u521d\u5b66\u8005\u4f1a\u8bef\u4ee5\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e3b\u5bf9\u89d2\u7ebf\u662f\u4e0d\u662f <code>k=1<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u5176\u5b9e\u4e0d\u662f\u3002<\/p>\n\n\n\n<p>\u4e3b\u5bf9\u89d2\u7ebf\u6c38\u8fdc\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>k=0\n<\/code><\/pre>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u628a\u5b83\u8bb0\u6210\uff1a<\/p>\n\n\n\n<p>\u201c\u4e3b\u5bf9\u89d2\u7ebf\u4e0d\u504f\u79fb\uff0c\u6240\u4ee5\u662f 0\uff1b\u5f80\u4e0a\u504f\u4e00\u6761\u662f 1\uff1b\u5f80\u4e0b\u504f\u4e00\u6761\u662f -1\u3002\u201d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u907f\u514d\u4e0b\u6b21\u518d\u9519<\/h2>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u8bb0\u4f4f\u8fd9 3 \u6761\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>numpy.eye()<\/code> \u8981\u7684\u662f <code>N, M<\/code>\uff0c\u4e0d\u662f\u4e00\u4e2a\u6574\u4f53\u7684 <code>shape<\/code> \u5143\u7ec4\u3002<\/li>\n\n\n\n<li>\u9898\u76ee\u8bf4 main diagonal\uff0c\u5c31\u662f <code>k=0<\/code>\u3002<\/li>\n\n\n\n<li>\u9047\u5230\u5143\u7ec4\u53c2\u6570\u65f6\uff0c\u5148\u60f3\u6e05\u695a\uff1a\u8fd9\u4e2a\u51fd\u6570\u662f\u8981\u201c\u6574\u4e2a\u5143\u7ec4\u201d\uff0c\u8fd8\u662f\u8981\u201c\u62c6\u5f00\u7684\u591a\u4e2a\u53c2\u6570\u201d\u3002<\/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\">\u672c\u9898\u53ef\u76f4\u63a5\u63d0\u4ea4\u7248\u672c<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\nnumpy.set_printoptions(legacy='1.13')\n\nN, M = map(int, input().split())\nprint(numpy.eye(N, M))\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\">\u5c0f\u7ec3\u4e60<\/h2>\n\n\n\n<p>\u81ea\u5df1\u8bd5\u7740\u505a\u4e00\u4e2a\u5f88\u5c0f\u7684\u53d8\u5f62\u9898\uff1a<\/p>\n\n\n\n<p>\u9898\u76ee\uff1a\u8f93\u5165 <code>N M<\/code>\uff0c\u8f93\u51fa\u4e00\u4e2a <code>N x M<\/code> \u7684\u6570\u7ec4\uff0c\u5176\u4e2d\u201c\u4e3b\u5bf9\u89d2\u7ebf\u4e0b\u4e00\u6761\u5bf9\u89d2\u7ebf\u201d\u4e3a <code>1<\/code>\uff0c\u5176\u4f59\u4f4d\u7f6e\u4e3a <code>0<\/code>\u3002<\/p>\n\n\n\n<p>\u63d0\u793a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8fd8\u662f\u7528 <code>numpy.eye()<\/code><\/li>\n\n\n\n<li>\u60f3\u4e00\u60f3\u8fd9\u6b21 <code>k<\/code> \u5e94\u8be5\u5199\u591a\u5c11<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u8865\u5145\u8bf4\u660e\uff1a\u4e3a\u4ec0\u4e48 <code>numpy.zeros((N, M))<\/code> \u8981\u5199\u6210\u5143\u7ec4\uff0c\u800c <code>numpy.eye(N, M)<\/code> \u5374\u4e0d\u7528\u5143\u7ec4\uff1f<\/h2>\n\n\n\n<p>\u8fd9\u4e2a\u95ee\u9898\u975e\u5e38\u503c\u5f97\u5355\u72ec\u8bb2\uff0c\u56e0\u4e3a\u5b83\u770b\u8d77\u6765\u50cf\u662f\u201cNumPy \u5199\u6cd5\u4e0d\u7edf\u4e00\u201d\uff0c\u4f46\u672c\u8d28\u4e0a\u4e0d\u662f\u4f60\u8bb0\u9519\u4e86\uff0c\u800c\u662f\u8fd9\u4e24\u4e2a\u51fd\u6570\u7684\u8bbe\u8ba1\u76ee\u6807\u672c\u6765\u5c31\u4e0d\u4e00\u6837\u3002<\/p>\n\n\n\n<p>\u7406\u89e3\u4e86\u8fd9\u4e00\u70b9\uff0c\u4ee5\u540e\u4f60\u5c31\u4e0d\u4f1a\u5728 <code>zeros<\/code>\u3001<code>ones<\/code>\u3001<code>reshape<\/code>\u3001<code>eye<\/code> \u8fd9\u4e9b\u51fd\u6570\u4e4b\u95f4\u53cd\u590d\u6df7\u6dc6\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<\/h2>\n\n\n\n<p>\u6700\u6838\u5fc3\u7684\u4e00\u53e5\u8bdd\u662f\uff1a<\/p>\n\n\n\n<p><code>numpy.zeros()<\/code> \u662f\u201c\u6309\u5f62\u72b6\u521b\u5efa\u6570\u7ec4\u201d\uff0c\u6240\u4ee5\u5b83\u8981\u7684\u662f <code>shape<\/code>\uff1b<br><code>numpy.eye()<\/code> \u662f\u201c\u6309\u884c\u5217\u521b\u5efa\u5bf9\u89d2\u7ebf\u77e9\u9635\u201d\uff0c\u6240\u4ee5\u5b83\u8981\u7684\u662f <code>N<\/code> \u548c <code>M<\/code>\u3002<\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u4eec\u5173\u5fc3\u7684\u91cd\u70b9\u4e0d\u4e00\u6837\uff0c\u6240\u4ee5\u53c2\u6570\u5f62\u5f0f\u5c31\u4e0d\u4e00\u6837\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\u3001<code>numpy.zeros()<\/code> \u5173\u5fc3\u7684\u662f\u201c\u6570\u7ec4\u7684\u5f62\u72b6 shape\u201d<\/h2>\n\n\n\n<p><code>numpy.zeros()<\/code> \u7684\u5178\u578b\u5199\u6cd5\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros(shape)\n<\/code><\/pre>\n\n\n\n<p>\u5b83\u7684\u6838\u5fc3\u53c2\u6570\u53eb <code>shape<\/code>\u3002<\/p>\n\n\n\n<p>\u8fd9\u91cc\u7684 <code>shape<\/code> \u662f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p>\u5c31\u662f\u201c\u8fd9\u4e2a\u6570\u7ec4\u6bcf\u4e00\u7ef4\u591a\u957f\u201d\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((3, 4))\n<\/code><\/pre>\n\n\n\n<p>\u610f\u601d\u5c31\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c 1 \u7ef4\u957f\u5ea6\u662f 3<\/li>\n\n\n\n<li>\u7b2c 2 \u7ef4\u957f\u5ea6\u662f 4<\/li>\n<\/ul>\n\n\n\n<p>\u4e5f\u5c31\u662f\u521b\u5efa\u4e00\u4e2a <code>3 \u884c 4 \u5217<\/code> \u7684\u4e8c\u7ef4\u6570\u7ec4\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u662f\u4e09\u7ef4\u6570\u7ec4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((2, 3, 4))\n<\/code><\/pre>\n\n\n\n<p>\u610f\u601d\u5c31\u662f\u521b\u5efa\u4e00\u4e2a\u5f62\u72b6\u4e3a <code>(2, 3, 4)<\/code> \u7684\u4e09\u7ef4\u6570\u7ec4\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u4f60\u4f1a\u53d1\u73b0\uff0c<code>zeros()<\/code> \u9762\u5411\u7684\u662f\u66f4\u4e00\u822c\u7684\u201cn \u7ef4\u6570\u7ec4\u521b\u5efa\u201d\uff0c\u5b83\u4e0d\u77e5\u9053\u4f60\u5230\u5e95\u662f\u4e8c\u7ef4\u3001\u4e09\u7ef4\u3001\u56db\u7ef4\uff0c\u6240\u4ee5\u6700\u81ea\u7136\u7684\u65b9\u5f0f\u5c31\u662f\uff1a<\/p>\n\n\n\n<p>\u628a\u6240\u6709\u7ef4\u5ea6\u7edf\u4e00\u6253\u5305\u6210\u4e00\u4e2a <code>shape<\/code> \u4f20\u8fdb\u53bb\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u4e3a\u4ec0\u4e48\u4e8c\u7ef4\u65f6\u8981\u5199\u6210 <code>((N, M))<\/code> \u8fd9\u79cd\u6837\u5b50<\/h2>\n\n\n\n<p>\u5f88\u591a\u521d\u5b66\u8005\u7b2c\u4e00\u6b21\u770b\u5230\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((N, M))\n<\/code><\/pre>\n\n\n\n<p>\u4f1a\u89c9\u5f97\u201c\u4e3a\u4ec0\u4e48\u6709\u4e24\u5c42\u62ec\u53f7\uff1f\u201d<\/p>\n\n\n\n<p>\u5176\u5b9e\u4e0d\u662f\u201c\u4e24\u5c42\u53c2\u6570\u201d\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5916\u5c42\u62ec\u53f7\uff1a\u51fd\u6570\u8c03\u7528\u62ec\u53f7<\/li>\n\n\n\n<li>\u5185\u5c42\u62ec\u53f7\uff1a\u5143\u7ec4<\/li>\n<\/ul>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((3, 4))\n<\/code><\/pre>\n\n\n\n<p>\u771f\u6b63\u7684\u7ed3\u6784\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>zeros(...)<\/code>\uff1a\u8c03\u7528\u51fd\u6570<\/li>\n\n\n\n<li><code>(3, 4)<\/code>\uff1a\u628a shape \u4f5c\u4e3a\u4e00\u4e2a\u5143\u7ec4\u4f20\u8fdb\u53bb<\/li>\n<\/ul>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u628a\u5b83\u62c6\u5f00\u6765\u770b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>shape = (3, 4)\nnumpy.zeros(shape)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u6837\u5c31\u66f4\u5bb9\u6613\u770b\u61c2\u4e86\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u4e0d\u662f <code>zeros<\/code> \u7279\u522b\u5947\u602a\uff0c\u800c\u662f\u5b83\u53ea\u6536\u4e00\u4e2a\u4e3b\u8981\u53c2\u6570\uff1a<code>shape<\/code>\u3002<br>\u800c\u4e8c\u7ef4\u7684 <code>shape<\/code> \u6070\u597d\u8981\u5199\u6210\u5143\u7ec4 <code>(N, M)<\/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\">\u4e09\u3001<code>numpy.eye()<\/code> \u5173\u5fc3\u7684\u662f\u201c\u884c\u6570\u548c\u5217\u6570\u201d<\/h2>\n\n\n\n<p>\u518d\u770b <code>numpy.eye()<\/code>\u3002<\/p>\n\n\n\n<p>\u5b83\u7684\u5178\u578b\u5199\u6cd5\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(N, M=None, k=0)\n<\/code><\/pre>\n\n\n\n<p>\u5b83\u7684\u8bbe\u8ba1\u91cd\u70b9\u4e0d\u662f\u201c\u4efb\u610f n \u7ef4\u6570\u7ec4\u201d\uff0c\u800c\u662f\u4e13\u95e8\u751f\u6210\u4e8c\u7ef4\u7684\u201c\u5bf9\u89d2\u7ebf\u77e9\u9635\u201d\u3002<\/p>\n\n\n\n<p>\u65e2\u7136\u5b83\u53ea\u5904\u7406\u4e8c\u7ef4\uff0c\u90a3\u4e48\u5b83\u5c31\u6ca1\u5fc5\u8981\u518d\u8ba9\u4f60\u4f20\u4e00\u4e2a\u201c\u7edf\u4e00\u7684 shape \u5143\u7ec4\u201d\uff0c\u800c\u662f\u53ef\u4ee5\u76f4\u63a5\u628a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>N<\/code>\uff1a\u884c\u6570<\/li>\n\n\n\n<li><code>M<\/code>\uff1a\u5217\u6570<\/li>\n<\/ul>\n\n\n\n<p>\u62c6\u6210\u4e24\u4e2a\u72ec\u7acb\u53c2\u6570\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 4)\n<\/code><\/pre>\n\n\n\n<p>\u8868\u793a\uff1a<\/p>\n\n\n\n<p>\u521b\u5efa\u4e00\u4e2a <code>3 \u884c 4 \u5217<\/code> \u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5e76\u5728\u4e3b\u5bf9\u89d2\u7ebf\u4f4d\u7f6e\u653e <code>1<\/code>\u3002<\/p>\n\n\n\n<p>\u8fd9\u65f6\u5b83\u66f4\u5f3a\u8c03\u7684\u662f\u201c\u884c\u201d\u548c\u201c\u5217\u201d\u8fd9\u4e24\u4e2a\u6982\u5ff5\uff0c\u800c\u4e0d\u662f\u4e00\u822c\u610f\u4e49\u4e0a\u7684 shape\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u4e24\u8005\u6700\u6839\u672c\u7684\u533a\u522b\uff1a\u4e00\u4e2a\u901a\u7528\uff0c\u4e00\u4e2a\u4e13\u7528<\/h2>\n\n\n\n<p>\u53ef\u4ee5\u628a\u5b83\u4eec\u8fd9\u6837\u7406\u89e3\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u51fd\u6570<\/th><th>\u7528\u9014<\/th><th>\u53c2\u6570\u601d\u8def<\/th><\/tr><\/thead><tbody><tr><td><code>numpy.zeros()<\/code><\/td><td>\u901a\u7528\u521b\u5efa\u5168 0 \u6570\u7ec4<\/td><td>\u7ed9\u6211\u6574\u4e2a\u5f62\u72b6 <code>shape<\/code><\/td><\/tr><tr><td><code>numpy.eye()<\/code><\/td><td>\u4e13\u95e8\u521b\u5efa\u4e8c\u7ef4\u5bf9\u89d2\u7ebf\u77e9\u9635<\/td><td>\u76f4\u63a5\u544a\u8bc9\u6211\u884c\u6570 <code>N<\/code>\u3001\u5217\u6570 <code>M<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u6240\u4ee5\u5e76\u4e0d\u662f\u8c01\u5bf9\u8c01\u9519\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>zeros()<\/code> \u66f4\u901a\u7528\uff0c\u652f\u6301 1 \u7ef4\u30012 \u7ef4\u30013 \u7ef4\u2026\u2026<\/li>\n\n\n\n<li><code>eye()<\/code> \u66f4\u4e13\u95e8\uff0c\u53ea\u505a\u4e8c\u7ef4\u77e9\u9635<\/li>\n<\/ul>\n\n\n\n<p>\u6b63\u56e0\u4e3a <code>zeros()<\/code> \u66f4\u901a\u7528\uff0c\u6240\u4ee5\u5b83\u5fc5\u987b\u4f7f\u7528 <code>shape<\/code> \u8fd9\u79cd\u7edf\u4e00\u8868\u8fbe\u65b9\u5f0f\u3002<br>\u6b63\u56e0\u4e3a <code>eye()<\/code> \u53ea\u5904\u7406\u4e8c\u7ef4\uff0c\u6240\u4ee5\u5b83\u76f4\u63a5\u5199 <code>N, M<\/code> \u66f4\u6e05\u695a\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u4e3a\u4ec0\u4e48 <code>zeros()<\/code> \u4e0d\u76f4\u63a5\u5199\u6210 <code>numpy.zeros(N, M)<\/code>\uff1f<\/h2>\n\n\n\n<p>\u8fd9\u4e2a\u95ee\u9898\u4f60\u53ef\u80fd\u4e5f\u4f1a\u987a\u7740\u60f3\u5230\u3002<\/p>\n\n\n\n<p>\u539f\u56e0\u5c31\u5728\u4e8e\uff1a<code>zeros()<\/code> \u4e0d\u53ea\u662f\u4e8c\u7ef4\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u771f\u7684\u8bbe\u8ba1\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros(N, M)\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u4e09\u7ef4\u600e\u4e48\u529e\uff1f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros(A, B, C)\n<\/code><\/pre>\n\n\n\n<p>\u56db\u7ef4\u5462\uff1f<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros(A, B, C, D)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u6837\u53c2\u6570\u4e2a\u6570\u5c31\u4e0d\u56fa\u5b9a\u4e86\uff0c\u4e0d\u5229\u4e8e\u51fd\u6570\u8bbe\u8ba1\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5 NumPy \u5e72\u8106\u7edf\u4e00\u89c4\u5b9a\uff1a<\/p>\n\n\n\n<p>\u4e0d\u7ba1\u51e0\u7ef4\uff0c\u90fd\u628a\u7ef4\u5ea6\u4fe1\u606f\u6253\u5305\u6210\u4e00\u4e2a <code>shape<\/code>\u3002<\/p>\n\n\n\n<p>\u4e8e\u662f\u5c31\u6709\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros(5)          # \u4e00\u7ef4\nnumpy.zeros((3, 4))     # \u4e8c\u7ef4\nnumpy.zeros((2, 3, 4))  # \u4e09\u7ef4\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u5957\u89c4\u5219\u5c31\u975e\u5e38\u7edf\u4e00\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u4e3a\u4ec0\u4e48 <code>eye()<\/code> \u4e0d\u76f4\u63a5\u4e5f\u5199\u6210 <code>numpy.eye((N, M))<\/code>\uff1f<\/h2>\n\n\n\n<p>\u56e0\u4e3a <code>eye()<\/code> \u7684\u91cd\u70b9\u4e0d\u662f\u201c\u4efb\u610f\u7ef4\u6570\u7ec4\u5f62\u72b6\u201d\uff0c\u800c\u662f\u201c\u4e8c\u7ef4\u77e9\u9635\u4e2d\u7684\u5bf9\u89d2\u7ebf\u201d\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u5199\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye((3, 4))\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u5c31\u4f1a\u628a\u201c\u4e8c\u7ef4\u77e9\u9635\u201d\u8fd9\u4e2a\u4fe1\u606f\u5f31\u5316\u6389\uff0c\u53cd\u800c\u4e0d\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 4)\n<\/code><\/pre>\n\n\n\n<p>\u6765\u5f97\u76f4\u89c2\u3002<\/p>\n\n\n\n<p><code>eye()<\/code> \u7684\u53c2\u6570\u8bbe\u8ba1\uff0c\u672c\u8eab\u5c31\u5728\u5f3a\u8c03\uff1a<\/p>\n\n\n\n<p>\u201c\u8fd9\u662f\u4e00\u4e2a\u4e8c\u7ef4\u77e9\u9635\uff0c\u5148\u544a\u8bc9\u6211\u591a\u5c11\u884c\uff0c\u518d\u544a\u8bc9\u6211\u591a\u5c11\u5217\u3002\u201d<\/p>\n\n\n\n<p>\u800c\u4e14\u5b83\u8fd8\u6709 <code>k<\/code> \u53c2\u6570\uff0c\u8868\u793a\u504f\u79fb\u54ea\u6761\u5bf9\u89d2\u7ebf\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(N, M, k=0)\n<\/code><\/pre>\n\n\n\n<p>\u6574\u4e2a\u63a5\u53e3\u90fd\u5f88\u660e\u663e\u662f\u5728\u56f4\u7ed5\u201c\u4e8c\u7ef4\u77e9\u9635\u201d\u6765\u8bbe\u8ba1\u7684\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e03\u3001\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u8865\u5145\uff1a<code>zeros<\/code> \u4e0d\u662f\u4e00\u5b9a\u8981\u5143\u7ec4<\/h2>\n\n\n\n<p>\u8fd9\u91cc\u8981\u7279\u522b\u63d0\u9192\u4e00\u4e0b\uff0c\u4e0d\u7136\u4ee5\u540e\u53c8\u5bb9\u6613\u5f62\u6210\u65b0\u7684\u8bef\u89e3\u3002<\/p>\n\n\n\n<p>\u4e0d\u662f\u8bf4 <code>numpy.zeros()<\/code> \u6c38\u8fdc\u90fd\u5fc5\u987b\u5199\u5143\u7ec4\u3002<\/p>\n\n\n\n<p>\u5f53\u4f60\u521b\u5efa\u7684\u662f\u4e00\u7ef4\u6570\u7ec4\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u5199\u6574\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros(5)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4f1a\u5f97\u5230\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;0. 0. 0. 0. 0.]\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a\u4e00\u7ef4\u7684 shape \u5c31\u53ea\u6709\u4e00\u4e2a\u6570\u5b57 <code>5<\/code>\u3002<\/p>\n\n\n\n<p>\u4f46\u662f\u5f53\u4f60\u8981\u521b\u5efa\u4e8c\u7ef4\u6216\u66f4\u9ad8\u7ef4\u6570\u7ec4\u65f6\uff0c\u5c31\u5fc5\u987b\u628a\u591a\u4e2a\u7ef4\u5ea6\u653e\u5728\u5143\u7ec4\u91cc\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((3, 4))\nnumpy.zeros((2, 3, 4))\n<\/code><\/pre>\n\n\n\n<p>\u6240\u4ee5\u66f4\u51c6\u786e\u5730\u8bf4\u6cd5\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u7ef4\u65f6\uff0c<code>shape<\/code> \u53ef\u4ee5\u76f4\u63a5\u662f\u4e00\u4e2a\u6574\u6570<\/li>\n\n\n\n<li>\u591a\u7ef4\u65f6\uff0c<code>shape<\/code> \u5fc5\u987b\u662f\u5143\u7ec4<\/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\">\u516b\u3001\u90a3\u6211\u5df2\u7ecf\u6709\u4e00\u4e2a\u5143\u7ec4 <code>shape = (N, M)<\/code>\uff0c\u80fd\u4e0d\u80fd\u7ed9 <code>eye()<\/code> \u7528\uff1f<\/h2>\n\n\n\n<p>\u53ef\u4ee5\uff0c\u4f46\u4e0d\u80fd\u76f4\u63a5\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(shape)\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a <code>eye()<\/code> \u8981\u7684\u662f\u4e24\u4e2a\u72ec\u7acb\u53c2\u6570\uff0c\u4e0d\u662f\u4e00\u4e2a\u5143\u7ec4\u3002<\/p>\n\n\n\n<p>\u8fd9\u65f6\u5019\u8981\u7528\u201c\u62c6\u5305\u201d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>shape = (3, 4)\nnumpy.eye(*shape)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u7b49\u4ef7\u4e8e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 4)\n<\/code><\/pre>\n\n\n\n<p>\u6240\u4ee5\u4f60\u4e4b\u524d\u90a3\u9053\u9898\u91cc\uff0c\u4e0b\u9762\u8fd9\u53e5\u624d\u662f\u5bf9\u7684\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>print(numpy.eye(*shape))\n<\/code><\/pre>\n\n\n\n<p>\u800c\u4e0d\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>print(numpy.eye(shape))\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\">\u4e5d\u3001\u628a\u8fd9\u4e24\u4e2a\u51fd\u6570\u653e\u5728\u4e00\u8d77\u5bf9\u6bd4\uff0c\u5c31\u66f4\u5bb9\u6613\u8bb0\u4f4f\u4e86<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><code>zeros<\/code> \u7684\u601d\u7ef4\u65b9\u5f0f<\/h3>\n\n\n\n<p>\u201c\u6211\u8981\u521b\u5efa\u4e00\u4e2a\u4ec0\u4e48\u5f62\u72b6\u7684\u6570\u7ec4\uff1f\u201d<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((3, 4))\n<\/code><\/pre>\n\n\n\n<p>\u91cd\u70b9\u5728 shape\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><code>eye<\/code> \u7684\u601d\u7ef4\u65b9\u5f0f<\/h3>\n\n\n\n<p>\u201c\u6211\u8981\u521b\u5efa\u4e00\u4e2a\u591a\u5c11\u884c\u591a\u5c11\u5217\u7684\u5bf9\u89d2\u7ebf\u77e9\u9635\uff1f\u201d<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 4)\n<\/code><\/pre>\n\n\n\n<p>\u91cd\u70b9\u5728\u884c\u548c\u5217\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5341\u3001\u4f60\u53ef\u4ee5\u8fd9\u6837\u8bb0\u5fc6\uff0c\u6700\u7701\u4e8b<\/h2>\n\n\n\n<p>\u4ee5\u540e\u505a\u9898\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u7528\u8fd9\u5957\u8bb0\u5fc6\u6cd5\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u770b\u5230\u8fd9\u4e9b\u51fd\u6570\uff0c\u4f18\u5148\u60f3\u5230\u201cshape\u201d<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>numpy.zeros(shape)<\/code><\/li>\n\n\n\n<li><code>numpy.ones(shape)<\/code><\/li>\n\n\n\n<li><code>numpy.empty(shape)<\/code><\/li>\n\n\n\n<li><code>numpy.reshape(a, shape)<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u5b83\u4eec\u90fd\u548c\u201c\u5f62\u72b6\u201d\u5173\u7cfb\u5f88\u5f3a\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u770b\u5230 <code>eye()<\/code>\uff0c\u4f18\u5148\u60f3\u5230\u201c\u884c\u5217\u201d<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>numpy.eye(N, M, k=0)<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u5b83\u4e0d\u662f\u8ba9\u4f60\u4ea4\u4e00\u4e2a shape\uff0c\u800c\u662f\u8ba9\u4f60\u5206\u522b\u7ed9\u884c\u548c\u5217\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>\u8fd9\u4e24\u4e2a\u51fd\u6570\u770b\u8d77\u6765\u53ea\u662f\u5199\u6cd5\u4e0d\u540c\uff0c\u5176\u5b9e\u80cc\u540e\u53cd\u6620\u7684\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u8bbe\u8ba1\u601d\u8def\u3002<\/p>\n\n\n\n<p><code>numpy.zeros()<\/code> \u662f\u4e00\u4e2a\u66f4\u901a\u7528\u7684\u6570\u7ec4\u521b\u5efa\u51fd\u6570\uff0c\u5b83\u9762\u5bf9\u7684\u662f\u4efb\u610f\u7ef4\u5ea6\u6570\u7ec4\uff0c\u6240\u4ee5\u7edf\u4e00\u4f7f\u7528 <code>shape<\/code>\u3002\u4e8c\u7ef4\u65f6\u4e4b\u6240\u4ee5\u5199\u6210 <code>numpy.zeros((N, M))<\/code>\uff0c\u672c\u8d28\u4e0a\u662f\u5728\u4f20\u4e00\u4e2a\u5f62\u72b6\u5143\u7ec4\u3002<\/p>\n\n\n\n<p><code>numpy.eye()<\/code> \u5219\u662f\u4e00\u4e2a\u4e13\u95e8\u751f\u6210\u4e8c\u7ef4\u5bf9\u89d2\u7ebf\u77e9\u9635\u7684\u51fd\u6570\uff0c\u5b83\u53ea\u5904\u7406\u4e8c\u7ef4\uff0c\u6240\u4ee5\u76f4\u63a5\u628a <code>N<\/code> \u548c <code>M<\/code> \u62c6\u6210\u4e24\u4e2a\u53c2\u6570\u3002\u8fd9\u6837\u66f4\u7b26\u5408\u201c\u77e9\u9635\u6709\u591a\u5c11\u884c\u3001\u591a\u5c11\u5217\u201d\u7684\u76f4\u89c9\uff0c\u4e5f\u66f4\u65b9\u4fbf\u518d\u914d\u5408 <code>k<\/code> \u8868\u793a\u5bf9\u89d2\u7ebf\u504f\u79fb\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u4f60\u4ee5\u540e\u4e0d\u8981\u628a\u5b83\u8bb0\u6210\u201c\u4e00\u4e2a\u8981\u5143\u7ec4\uff0c\u4e00\u4e2a\u4e0d\u8981\u5143\u7ec4\u201d\u8fd9\u79cd\u6b7b\u89c4\u5219\uff0c\u800c\u8981\u8bb0\u6210\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>zeros<\/code> \u662f\u6309 shape \u521b\u5efa<\/li>\n\n\n\n<li><code>eye<\/code> \u662f\u6309\u884c\u5217\u521b\u5efa<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u6837\u624d\u4e0d\u5bb9\u6613\u6df7\u3002<\/p>\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>\u4f60\u53ef\u4ee5\u81ea\u5df1\u5148\u60f3\u4e00\u60f3\u4e0b\u9762\u4e09\u53e5\u5206\u522b\u5bf9\u4e0d\u5bf9\uff0c\u4e3a\u4ec0\u4e48\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((2, 3))\nnumpy.eye((2, 3))\nnumpy.eye(*(2, 3))\n<\/code><\/pre>\n\n\n\n<p>\u63d0\u793a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u53e5\u770b\u7684\u662f <code>zeros<\/code> \u8981\u4e0d\u8981 shape<\/li>\n\n\n\n<li>\u7b2c\u4e8c\u53e5\u770b\u7684\u662f <code>eye<\/code> \u80fd\u4e0d\u80fd\u76f4\u63a5\u6536\u5143\u7ec4<\/li>\n\n\n\n<li>\u7b2c\u4e09\u53e5\u770b\u7684\u662f <code>*<\/code> \u62c6\u5305\u4e4b\u540e\u4f1a\u53d1\u751f\u4ec0\u4e48<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u6b21\u6027\u8bb2\u6e05\uff1a<code>shape<\/code>\u3001<code>reshape<\/code>\u3001<code>eye<\/code>\u3001<code>zeros<\/code> \u5230\u5e95\u600e\u4e48\u533a\u5206<\/h2>\n\n\n\n<p>\u8fd9\u51e0\u4e2a\u8bcd\u4e4b\u6240\u4ee5\u7279\u522b\u5bb9\u6613\u6df7\uff0c\u4e0d\u662f\u56e0\u4e3a\u4f60\u8bb0\u6027\u4e0d\u597d\uff0c\u800c\u662f\u56e0\u4e3a\u5b83\u4eec\u90fd\u548c\u201c\u6570\u7ec4\u957f\u4ec0\u4e48\u6837\u201d\u6709\u5173\uff0c\u8868\u9762\u4e0a\u770b\u8d77\u6765\u5f88\u50cf\uff0c\u4f46\u5b83\u4eec\u5176\u5b9e\u5206\u5c5e\u4e0d\u540c\u5c42\u9762\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u53ea\u9760\u6b7b\u8bb0\u786c\u80cc\uff0c\u505a\u9898\u65f6\u5f88\u5bb9\u6613\u51fa\u73b0\u4e0b\u9762\u8fd9\u79cd\u6df7\u4e71\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u628a <code>shape<\/code> \u5f53\u51fd\u6570\u7528<\/li>\n\n\n\n<li>\u628a <code>reshape<\/code> \u5f53\u201c\u521b\u5efa\u6570\u7ec4\u201d\u7684\u51fd\u6570\u7528<\/li>\n\n\n\n<li>\u628a <code>zeros((N, M))<\/code> \u548c <code>eye(N, M)<\/code> \u5199\u6df7<\/li>\n\n\n\n<li>\u660e\u660e\u77e5\u9053\u90fd\u548c\u201c\u5f62\u72b6\u201d\u6709\u5173\uff0c\u4f46\u4e00\u4e0a\u624b\u8fd8\u662f\u4e0d\u77e5\u9053\u8be5\u4f20\u4ec0\u4e48\u53c2\u6570<\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\u8fd9\u4e00\u8282\u4e0d\u53ea\u662f\u5206\u522b\u89e3\u91ca\uff0c\u800c\u662f\u8981\u628a\u8fd9\u56db\u4e2a\u4e1c\u897f\u653e\u5728\u540c\u4e00\u4e2a\u6846\u67b6\u91cc\uff0c\u4e00\u53e3\u6c14\u7406\u6e05\u695a\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\u7ed9\u4f60\u4e00\u4e2a\u603b\u8868<\/h2>\n\n\n\n<p>\u5148\u770b\u6700\u6838\u5fc3\u7684\u533a\u5206\u8868\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u540d\u79f0<\/th><th>\u5b83\u662f\u4ec0\u4e48<\/th><th>\u4f5c\u7528<\/th><th>\u5e38\u89c1\u5199\u6cd5<\/th><\/tr><\/thead><tbody><tr><td><code>shape<\/code><\/td><td>\u6570\u7ec4\u7684\u201c\u5f62\u72b6\u4fe1\u606f\u201d<\/td><td>\u8868\u793a\u6bcf\u4e00\u7ef4\u7684\u957f\u5ea6<\/td><td><code>arr.shape<\/code><\/td><\/tr><tr><td><code>reshape<\/code><\/td><td>\u6539\u53d8\u5f62\u72b6\u7684\u65b9\u6cd5\/\u51fd\u6570<\/td><td>\u628a\u5df2\u6709\u6570\u636e\u91cd\u65b0\u6392\u6210\u65b0\u5f62\u72b6<\/td><td><code>numpy.reshape(arr, (3, 3))<\/code><\/td><\/tr><tr><td><code>zeros<\/code><\/td><td>\u521b\u5efa\u6570\u7ec4\u7684\u51fd\u6570<\/td><td>\u521b\u5efa\u4e00\u4e2a\u5168\u662f 0 \u7684\u65b0\u6570\u7ec4<\/td><td><code>numpy.zeros((3, 3))<\/code><\/td><\/tr><tr><td><code>eye<\/code><\/td><td>\u521b\u5efa\u7279\u6b8a\u6570\u7ec4\u7684\u51fd\u6570<\/td><td>\u521b\u5efa\u5bf9\u89d2\u7ebf\u4e3a 1 \u7684\u4e8c\u7ef4\u6570\u7ec4<\/td><td><code>numpy.eye(3, 3)<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u5148\u6293\u4f4f\u8fd9\u56db\u53e5\u8bdd\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>shape<\/code>\uff1a\u8fd9\u662f\u201c\u5f62\u72b6\u672c\u8eab\u201d<\/li>\n\n\n\n<li><code>reshape<\/code>\uff1a\u8fd9\u662f\u201c\u6539\u5f62\u72b6\u201d<\/li>\n\n\n\n<li><code>zeros<\/code>\uff1a\u8fd9\u662f\u201c\u6309\u5f62\u72b6\u521b\u5efa\u5168 0 \u6570\u7ec4\u201d<\/li>\n\n\n\n<li><code>eye<\/code>\uff1a\u8fd9\u662f\u201c\u6309\u884c\u5217\u521b\u5efa\u5bf9\u89d2\u7ebf\u6570\u7ec4\u201d<\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u4f60\u80fd\u5148\u628a\u8fd9\u56db\u4e2a\u5b9a\u4f4d\u5206\u5f00\uff0c\u540e\u9762\u5f88\u591a\u9898\u5c31\u4e0d\u5bb9\u6613\u4e71\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\u3001<code>shape<\/code>\uff1a\u5b83\u4e0d\u662f\u521b\u5efa\u6570\u7ec4\uff0c\u800c\u662f\u5728\u63cf\u8ff0\u6570\u7ec4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><code>shape<\/code> \u7684\u672c\u8d28\u662f\u4ec0\u4e48<\/h3>\n\n\n\n<p><code>shape<\/code> \u8bf4\u767d\u4e86\u5c31\u662f\uff1a<\/p>\n\n\n\n<p>\u4e00\u4e2a\u6570\u7ec4\u6bcf\u4e00\u7ef4\u6709\u591a\u957f\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\n\narr = numpy.array(&#91;&#91;1, 2, 3],\n                   &#91;4, 5, 6]])\nprint(arr.shape)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\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 1 \u7ef4\u957f\u5ea6\u662f 2<\/li>\n\n\n\n<li>\u7b2c 2 \u7ef4\u957f\u5ea6\u662f 3<\/li>\n<\/ul>\n\n\n\n<p>\u4e5f\u5c31\u662f\uff1a\u8fd9\u4e2a\u6570\u7ec4\u662f <code>2 \u884c 3 \u5217<\/code>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><code>shape<\/code> \u6700\u5bb9\u6613\u6df7\u6dc6\u7684\u70b9<\/h3>\n\n\n\n<p>\u5f88\u591a\u521d\u5b66\u8005\u4f1a\u628a <code>shape<\/code> \u8bef\u4ee5\u4e3a\u662f\u4e00\u4e2a\u201c\u505a\u4e8b\u7684\u51fd\u6570\u201d\uff0c\u5176\u5b9e\u4e0d\u662f\u3002<\/p>\n\n\n\n<p>\u5b83\u66f4\u50cf\u662f\u6570\u7ec4\u7684\u4e00\u4e2a\u201c\u5c5e\u6027\u201d\u6216\u8005\u201c\u4fe1\u606f\u201d\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>print(arr.shape)\n<\/code><\/pre>\n\n\n\n<p>\u662f\u5728\u95ee\uff1a<\/p>\n\n\n\n<p>\u201c\u8fd9\u4e2a\u6570\u7ec4\u73b0\u5728\u957f\u4ec0\u4e48\u6837\uff1f\u201d<\/p>\n\n\n\n<p>\u800c\u4e0d\u662f\uff1a<\/p>\n\n\n\n<p>\u201c\u5e2e\u6211\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u201d<br>\u6216\u8005<br>\u201c\u5e2e\u6211\u6539\u4e00\u4e0b\u6570\u7ec4\u201d\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u4f60\u53ef\u4ee5\u628a <code>shape<\/code> \u8bb0\u6210\uff1a<\/p>\n\n\n\n<p>\u5b83\u662f\u201c\u72b6\u6001\u63cf\u8ff0\u201d\uff0c\u4e0d\u662f\u201c\u52a8\u4f5c\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\">\u4e8c\u3001<code>reshape<\/code>\uff1a\u5b83\u4e0d\u662f\u65b0\u5efa\u5185\u5bb9\uff0c\u800c\u662f\u91cd\u6392\u5df2\u6709\u5185\u5bb9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><code>reshape<\/code> \u662f\u5e72\u4ec0\u4e48\u7684<\/h3>\n\n\n\n<p><code>reshape<\/code> \u7684\u5b57\u9762\u610f\u601d\u5c31\u662f\uff1a<\/p>\n\n\n\n<p>\u91cd\u65b0\u5851\u5f62\uff0c\u91cd\u65b0\u8c03\u6574\u5f62\u72b6\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\n\narr = numpy.array(&#91;1, 2, 3, 4, 5, 6])\nnew_arr = numpy.reshape(arr, (2, 3))\nprint(new_arr)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1 2 3]\n &#91;4 5 6]]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u53d1\u751f\u7684\u4e8b\u60c5\u4e0d\u662f\u201c\u751f\u6210\u65b0\u6570\u5b57\u201d\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n<p>\u628a\u539f\u6765\u7684\u4e00\u7ef4\u6570\u636e\uff0c\u6309\u65b0\u7684\u5f62\u72b6\u91cd\u65b0\u6392\u5e03\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><code>reshape<\/code> \u6700\u5173\u952e\u7684\u4e00\u70b9<\/h3>\n\n\n\n<p><code>reshape<\/code> \u4e0d\u8d1f\u8d23\u201c\u521b\u9020\u6570\u636e\u201d\uff0c\u5b83\u53ea\u8d1f\u8d23\u201c\u91cd\u65b0\u5b89\u6392\u5df2\u6709\u6570\u636e\u201d\u3002<\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u6765\u6709\u51e0\u4e2a\u5143\u7d20\uff0c\u6539\u5b8c\u540e\u8fd8\u662f\u51e0\u4e2a\u5143\u7d20<\/li>\n\n\n\n<li>\u5143\u7d20\u603b\u6570\u5fc5\u987b\u4e00\u81f4<\/li>\n<\/ul>\n\n\n\n<p>\u6bd4\u5982\u539f\u6570\u7ec4\u6709 6 \u4e2a\u5143\u7d20\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;1, 2, 3, 4, 5, 6]\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u4f60\u53ef\u4ee5\u6539\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(2, 3)\n(3, 2)\n(1, 6)\n(6, 1)\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a\u8fd9\u4e9b\u5f62\u72b6\u5bf9\u5e94\u7684\u603b\u5143\u7d20\u6570\u90fd\u662f 6\u3002<\/p>\n\n\n\n<p>\u4f46\u4f60\u4e0d\u80fd\u6539\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(4, 2)\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a <code>4 * 2 = 8<\/code>\uff0c\u5143\u7d20\u4e2a\u6570\u5bf9\u4e0d\u4e0a\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><code>reshape<\/code> \u548c <code>shape<\/code> \u7684\u533a\u522b<\/h3>\n\n\n\n<p>\u8fd9\u662f\u6700\u5bb9\u6613\u4e00\u8d77\u6df7\u7684\u5730\u65b9\u3002<\/p>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>shape<\/code> \u662f\u201c\u73b0\u5728\u7684\u5f62\u72b6\u662f\u4ec0\u4e48\u201d<\/li>\n\n\n\n<li><code>reshape<\/code> \u662f\u201c\u6211\u8981\u628a\u5b83\u53d8\u6210\u4ec0\u4e48\u5f62\u72b6\u201d<\/li>\n<\/ul>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>arr = numpy.array(&#91;1, 2, 3, 4, 5, 6])\nprint(arr.shape)\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\u7684\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(6,)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u8868\u793a\u201c\u5b83\u73b0\u5728\u662f\u4e00\u7ef4\u3001\u957f\u5ea6 6\u201d\u3002<\/p>\n\n\n\n<p>\u7136\u540e\u4f60\u518d\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>arr2 = numpy.reshape(arr, (2, 3))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u8868\u793a\u201c\u6211\u8981\u628a\u5b83\u6539\u6210 2 \u884c 3 \u5217\u201d\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>shape<\/code> \u662f\u7ed3\u679c\u4fe1\u606f<\/li>\n\n\n\n<li><code>reshape<\/code> \u662f\u6539\u53d8\u52a8\u4f5c<\/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\">\u4e09\u3001<code>zeros<\/code>\uff1a\u6309\u7167\u7ed9\u5b9a\u5f62\u72b6\uff0c\u521b\u5efa\u4e00\u4e2a\u5168 0 \u6570\u7ec4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><code>zeros<\/code> \u662f\u521b\u5efa\uff0c\u4e0d\u662f\u4fee\u6539<\/h3>\n\n\n\n<p><code>zeros<\/code> \u7684\u4f5c\u7528\u662f\uff1a<\/p>\n\n\n\n<p>\u76f4\u63a5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5e76\u4e14\u91cc\u9762\u6240\u6709\u5143\u7d20\u90fd\u662f 0\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\nprint(numpy.zeros((2, 3)))\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;0. 0. 0.]\n &#91;0. 0. 0.]]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u4e0d\u662f\u201c\u628a\u67d0\u4e2a\u5df2\u6709\u6570\u7ec4\u6539\u6210 0\u201d\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n<p>\u4ece\u5934\u65b0\u5efa\u4e86\u4e00\u4e2a <code>2 x 3<\/code> \u7684\u6570\u7ec4\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48 <code>zeros<\/code> \u7684\u53c2\u6570\u662f <code>shape<\/code><\/h3>\n\n\n\n<p><code>zeros<\/code> \u7684\u91cd\u70b9\u5728\u4e8e\uff1a<\/p>\n\n\n\n<p>\u201c\u6211\u8981\u521b\u5efa\u4e00\u4e2a\u4ec0\u4e48\u5f62\u72b6\u7684\u6570\u7ec4\uff1f\u201d<\/p>\n\n\n\n<p>\u6240\u4ee5\u5b83\u8981\u7684\u53c2\u6570\u5c31\u662f <code>shape<\/code>\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((3, 4))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u7684 <code>(3, 4)<\/code> \u8868\u793a\u5f62\u72b6\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u662f\u4e09\u7ef4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((2, 3, 4))\n<\/code><\/pre>\n\n\n\n<p>\u4e5f\u7167\u6837\u53ef\u4ee5\u3002<\/p>\n\n\n\n<p>\u8fd9\u8bf4\u660e <code>zeros<\/code> \u662f\u4e00\u4e2a\u6bd4\u8f83\u901a\u7528\u7684\u51fd\u6570\uff0c\u5b83\u652f\u6301\u4efb\u610f\u7ef4\u5ea6\uff0c\u6240\u4ee5\u8981\u7edf\u4e00\u4f7f\u7528 <code>shape<\/code>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><code>zeros<\/code> \u548c <code>reshape<\/code> \u7684\u672c\u8d28\u533a\u522b<\/h3>\n\n\n\n<p>\u8fd9\u4e24\u4e2a\u4e5f\u5f88\u5bb9\u6613\u6df7\u3002<\/p>\n\n\n\n<p>\u5f88\u591a\u4eba\u8111\u5b50\u91cc\u90fd\u662f\u201c\u53cd\u6b63\u6700\u540e\u90fd\u80fd\u5f97\u5230\u4e00\u4e2a <code>2 x 3<\/code> \u7684\u6570\u7ec4\u201d\uff0c\u4e8e\u662f\u5c31\u7cca\u4e86\u3002<\/p>\n\n\n\n<p>\u4f46\u5b9e\u9645\u4e0a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9879\u76ee<\/th><th><code>zeros<\/code><\/th><th><code>reshape<\/code><\/th><\/tr><\/thead><tbody><tr><td>\u672c\u8d28<\/td><td>\u65b0\u5efa\u6570\u7ec4<\/td><td>\u6539\u5df2\u6709\u6570\u7ec4\u5f62\u72b6<\/td><\/tr><tr><td>\u6570\u636e\u6765\u6e90<\/td><td>\u76f4\u63a5\u751f\u6210 0<\/td><td>\u4f7f\u7528\u539f\u6570\u7ec4\u5df2\u6709\u6570\u636e<\/td><\/tr><tr><td>\u662f\u5426\u4f9d\u8d56\u65e7\u6570\u7ec4<\/td><td>\u4e0d\u4f9d\u8d56<\/td><td>\u5fc5\u987b\u4f9d\u8d56<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e3e\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((2, 3))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u76f4\u63a5\u65b0\u5efa\u4e00\u4e2a\u5168 0 \u6570\u7ec4\u3002<\/p>\n\n\n\n<p>\u800c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>arr = numpy.array(&#91;1, 2, 3, 4, 5, 6])\nnumpy.reshape(arr, (2, 3))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u628a\u73b0\u6709\u6570\u636e\u91cd\u65b0\u6446\u653e\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u5b83\u4eec\u867d\u7136\u90fd\u80fd\u5f97\u5230\u201c\u4e8c\u7ef4\u6570\u7ec4\u201d\uff0c\u4f46\u51fa\u53d1\u70b9\u5b8c\u5168\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\">\u56db\u3001<code>eye<\/code>\uff1a\u521b\u5efa\u5bf9\u89d2\u7ebf\u4e3a 1 \u7684\u4e8c\u7ef4\u6570\u7ec4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><code>eye<\/code> \u662f\u7279\u6b8a\u7528\u9014\u7684\u521b\u5efa\u51fd\u6570<\/h3>\n\n\n\n<p><code>eye<\/code> \u548c <code>zeros<\/code> \u4e00\u6837\uff0c\u4e5f\u662f\u201c\u521b\u5efa\u6570\u7ec4\u201d\u7684\u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u4f46\u5b83\u4e0d\u662f\u521b\u5efa\u5168 0 \u6570\u7ec4\uff0c\u800c\u662f\u521b\u5efa\u4e00\u79cd\u7279\u6b8a\u7684\u4e8c\u7ef4\u6570\u7ec4\uff1a<\/p>\n\n\n\n<p>\u4e3b\u5bf9\u89d2\u7ebf\u662f 1\uff0c\u5176\u4ed6\u4f4d\u7f6e\u662f 0\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\nprint(numpy.eye(3, 3))\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1. 0. 0.]\n &#91;0. 1. 0.]\n &#91;0. 0. 1.]]\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\">\u4e3a\u4ec0\u4e48 <code>eye<\/code> \u4e0d\u5199\u6210 <code>eye((N, M))<\/code><\/h3>\n\n\n\n<p>\u56e0\u4e3a <code>eye<\/code> \u662f\u4e13\u95e8\u505a\u4e8c\u7ef4\u77e9\u9635\u7684\uff0c\u5b83\u5f3a\u8c03\u7684\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u884c\u6570 <code>N<\/code><\/li>\n\n\n\n<li>\u5217\u6570 <code>M<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u6240\u4ee5\u5b83\u7684\u63a5\u53e3\u8bbe\u8ba1\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(N, M=None, k=0)\n<\/code><\/pre>\n\n\n\n<p>\u800c\u4e0d\u662f\u7edf\u4e00\u5199\u6210 shape \u5143\u7ec4\u3002<\/p>\n\n\n\n<p>\u8fd9\u548c <code>zeros<\/code> \u4e0d\u540c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>zeros<\/code> \u662f\u9762\u5411\u4efb\u610f\u7ef4\u5ea6\uff0c\u6240\u4ee5\u7528 <code>shape<\/code><\/li>\n\n\n\n<li><code>eye<\/code> \u662f\u4e13\u95e8\u5904\u7406\u4e8c\u7ef4\u77e9\u9635\uff0c\u6240\u4ee5\u76f4\u63a5\u62c6\u6210 <code>N, M<\/code><\/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\"><code>eye<\/code> \u8fd8\u6709\u4e00\u4e2a\u975e\u5e38\u5bb9\u6613\u9519\u7684\u53c2\u6570\uff1a<code>k<\/code><\/h3>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 3, k=0)\n<\/code><\/pre>\n\n\n\n<p>\u8868\u793a\u4e3b\u5bf9\u89d2\u7ebf\u662f 1\u3002<\/p>\n\n\n\n<p>\u800c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 3, k=1)\n<\/code><\/pre>\n\n\n\n<p>\u8868\u793a\u4e3b\u5bf9\u89d2\u7ebf\u4e0a\u65b9\u90a3\u6761\u5bf9\u89d2\u7ebf\u662f 1\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 3, k=-1)\n<\/code><\/pre>\n\n\n\n<p>\u8868\u793a\u4e3b\u5bf9\u89d2\u7ebf\u4e0b\u65b9\u90a3\u6761\u5bf9\u89d2\u7ebf\u662f 1\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5 <code>eye<\/code> \u4e0d\u53ea\u662f\u201c\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u201d\uff0c\u5b83\u8fd8\u548c\u201c\u5bf9\u89d2\u7ebf\u4f4d\u7f6e\u201d\u7ed1\u5b9a\u5728\u4e00\u8d77\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u628a\u56db\u8005\u653e\u8fdb\u4e00\u4e2a\u7edf\u4e00\u601d\u7ef4\u6846\u67b6\u91cc<\/h2>\n\n\n\n<p>\u73b0\u5728\u4f60\u53ef\u4ee5\u7528\u4e00\u4e2a\u975e\u5e38\u5b9e\u7528\u7684\u601d\u8def\u53bb\u5224\u65ad\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e00\u6b65\uff1a\u6211\u662f\u5728\u201c\u770b\u6570\u7ec4\u201d\uff0c\u8fd8\u662f\u201c\u505a\u6570\u7ec4\u201d\uff1f<\/h3>\n\n\n\n<p>\u5982\u679c\u4f60\u662f\u5728\u770b\u6570\u7ec4\u672c\u6765\u957f\u4ec0\u4e48\u6837\uff0c\u90a3\u901a\u5e38\u60f3\u5230\u7684\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>arr.shape\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u662f\u8bfb\u53d6\u4fe1\u606f\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\u6b65\uff1a\u5982\u679c\u6211\u8981\u201c\u505a\u6570\u7ec4\u201d\uff0c\u6211\u662f\u201c\u65b0\u5efa\u201d\u8fd8\u662f\u201c\u91cd\u6392\u201d\uff1f<\/h3>\n\n\n\n<p>\u5982\u679c\u4f60\u662f\u4ece\u5934\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u90a3\u901a\u5e38\u4f1a\u60f3\u5230\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>numpy.zeros(...)<\/code><\/li>\n\n\n\n<li><code>numpy.eye(...)<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u4f60\u662f\u62ff\u5df2\u6709\u6570\u7ec4\u91cd\u65b0\u6392\u5f62\u72b6\uff0c\u90a3\u60f3\u5230\u7684\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>numpy.reshape(...)<\/code><\/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\">\u7b2c\u4e09\u6b65\uff1a\u5982\u679c\u662f\u201c\u65b0\u5efa\u201d\uff0c\u6211\u8981\u7684\u662f\u666e\u901a\u6570\u7ec4\u8fd8\u662f\u7279\u6b8a\u6570\u7ec4\uff1f<\/h3>\n\n\n\n<p>\u5982\u679c\u53ea\u662f\u8981\u4e00\u4e2a\u666e\u901a\u7684\u5168 0 \u6570\u7ec4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((N, M))\n<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u8981\u4e00\u4e2a\u5bf9\u89d2\u7ebf\u4e3a 1 \u7684\u7279\u6b8a\u4e8c\u7ef4\u6570\u7ec4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(N, M)\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\">\u516d\u3001\u56db\u8005\u6700\u5bb9\u6613\u6df7\u6dc6\u7684\u771f\u6b63\u539f\u56e0<\/h2>\n\n\n\n<p>\u4f60\u4e4b\u6240\u4ee5\u8001\u89c9\u5f97\u8fd9\u51e0\u4e2a\u4e1c\u897f\u7f20\u5728\u4e00\u8d77\uff0c\u6839\u672c\u539f\u56e0\u662f\uff1a<\/p>\n\n\n\n<p>\u5b83\u4eec\u90fd\u548c\u201c\u6570\u7ec4\u5f62\u72b6\u201d\u6709\u5173\uff0c\u4f46\u5173\u6ce8\u89d2\u5ea6\u4e0d\u4e00\u6837\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u540d\u79f0<\/th><th>\u5b83\u5173\u6ce8\u4ec0\u4e48<\/th><\/tr><\/thead><tbody><tr><td><code>shape<\/code><\/td><td>\u73b0\u5728\u7684\u5f62\u72b6<\/td><\/tr><tr><td><code>reshape<\/code><\/td><td>\u6539\u6210\u4ec0\u4e48\u5f62\u72b6<\/td><\/tr><tr><td><code>zeros<\/code><\/td><td>\u6309\u4ec0\u4e48\u5f62\u72b6\u65b0\u5efa<\/td><\/tr><tr><td><code>eye<\/code><\/td><td>\u5efa\u4e00\u4e2a\u591a\u5c11\u884c\u591a\u5c11\u5217\u7684\u5bf9\u89d2\u7ebf\u77e9\u9635<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4f60\u4f1a\u53d1\u73b0\uff0c\u5b83\u4eec\u90fd\u5728\u56f4\u7ed5\u201c\u5f62\u72b6\u201d\u6253\u8f6c\uff0c\u4f46\u89d2\u8272\u5b8c\u5168\u4e0d\u540c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>shape<\/code> \u662f\u63cf\u8ff0<\/li>\n\n\n\n<li><code>reshape<\/code> \u662f\u8c03\u6574<\/li>\n\n\n\n<li><code>zeros<\/code> \u662f\u6309\u5f62\u72b6\u521b\u5efa<\/li>\n\n\n\n<li><code>eye<\/code> \u662f\u6309\u884c\u5217\u521b\u5efa\u7279\u6b8a\u77e9\u9635<\/li>\n<\/ul>\n\n\n\n<p>\u4e00\u65e6\u4f60\u4ece\u201c\u89d2\u8272\u201d\u89d2\u5ea6\u53bb\u533a\u5206\uff0c\u800c\u4e0d\u662f\u4ece\u201c\u5b83\u4eec\u90fd\u957f\u5f97\u50cf NumPy \u51fd\u6570\u201d\u53bb\u533a\u5206\uff0c\u8111\u5b50\u5c31\u4f1a\u6e05\u695a\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\">\u4e03\u3001\u4e00\u4e2a\u5bf9\u6bd4\u793a\u4f8b\uff0c\u653e\u5728\u4e00\u8d77\u770b\u6700\u6e05\u695a<\/h2>\n\n\n\n<p>\u770b\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\n\narr = numpy.array(&#91;1, 2, 3, 4, 5, 6])\n\nprint(arr.shape)\nprint(numpy.reshape(arr, (2, 3)))\nprint(numpy.zeros((2, 3)))\nprint(numpy.eye(2, 3))\n<\/code><\/pre>\n\n\n\n<p>\u9010\u884c\u7406\u89e3\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e00\u884c<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>print(arr.shape)\n<\/code><\/pre>\n\n\n\n<p>\u95ee\u7684\u662f\uff1a<br>\u8fd9\u4e2a\u6570\u7ec4\u73b0\u5728\u7684\u5f62\u72b6\u662f\u4ec0\u4e48\uff1f<\/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\u884c<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>print(numpy.reshape(arr, (2, 3)))\n<\/code><\/pre>\n\n\n\n<p>\u610f\u601d\u662f\uff1a<br>\u628a\u73b0\u6709\u6570\u636e\u91cd\u65b0\u6392\u6210 <code>2 x 3<\/code>\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\u4e09\u884c<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>print(numpy.zeros((2, 3)))\n<\/code><\/pre>\n\n\n\n<p>\u610f\u601d\u662f\uff1a<br>\u65b0\u5efa\u4e00\u4e2a <code>2 x 3<\/code> \u7684\u5168 0 \u6570\u7ec4\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\u56db\u884c<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>print(numpy.eye(2, 3))\n<\/code><\/pre>\n\n\n\n<p>\u610f\u601d\u662f\uff1a<br>\u65b0\u5efa\u4e00\u4e2a <code>2 x 3<\/code> \u7684\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5e76\u5728\u4e3b\u5bf9\u89d2\u7ebf\u4f4d\u7f6e\u653e <code>1<\/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\">\u516b\u3001\u6700\u5b9e\u7528\u7684\u8bb0\u5fc6\u6cd5<\/h2>\n\n\n\n<p>\u4f60\u4ee5\u540e\u53ef\u4ee5\u76f4\u63a5\u5957\u4e0b\u9762\u8fd9\u7ec4\u53e3\u8bc0\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u770b\u5230 <code>shape<\/code><\/h3>\n\n\n\n<p>\u5148\u60f3\uff1a<br>\u201c\u8fd9\u662f\u6570\u7ec4\u957f\u4ec0\u4e48\u6837\u3002\u201d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u770b\u5230 <code>reshape<\/code><\/h3>\n\n\n\n<p>\u5148\u60f3\uff1a<br>\u201c\u8fd9\u662f\u628a\u5df2\u6709\u6570\u7ec4\u91cd\u65b0\u6392\u5f62\u72b6\u3002\u201d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u770b\u5230 <code>zeros<\/code><\/h3>\n\n\n\n<p>\u5148\u60f3\uff1a<br>\u201c\u8fd9\u662f\u6309 shape \u65b0\u5efa\u4e00\u4e2a\u5168 0 \u6570\u7ec4\u3002\u201d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u770b\u5230 <code>eye<\/code><\/h3>\n\n\n\n<p>\u5148\u60f3\uff1a<br>\u201c\u8fd9\u662f\u6309\u884c\u5217\u65b0\u5efa\u4e00\u4e2a\u5bf9\u89d2\u7ebf\u77e9\u9635\u3002\u201d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e5d\u3001\u518d\u8865\u4e00\u4e2a\u6700\u5e38\u89c1\u7684\u9519\u6cd5\u8fa8\u6790<\/h2>\n\n\n\n<p>\u4e0b\u9762\u8fd9\u51e0\u53e5\u91cc\uff0c\u54ea\u4e9b\u5bf9\uff0c\u54ea\u4e9b\u9519\uff0c\u4f60\u6700\u597d\u80fd\u505a\u5230\u4e00\u773c\u5224\u65ad\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((3, 3))\nnumpy.eye(3, 3)\nnumpy.reshape(&#91;1, 2, 3, 4], (2, 2))\narr.shape\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u56db\u53e5\u90fd\u5bf9\u3002<\/p>\n\n\n\n<p>\u518d\u770b\u4e0b\u9762\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros(3, 3)\nnumpy.eye((3, 3))\nnumpy.shape(arr, (2, 2))\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e09\u53e5\u90fd\u4e0d\u5bf9\uff0c\u6216\u8005\u8bf4\u4e0d\u662f\u4f60\u73b0\u5728\u8be5\u8fd9\u4e48\u5199\u7684\u5f62\u5f0f\u3002<\/p>\n\n\n\n<p>\u539f\u56e0\u5206\u522b\u662f\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><code>numpy.zeros(3, 3)<\/code> \u9519<\/h3>\n\n\n\n<p>\u56e0\u4e3a <code>zeros<\/code> \u8981\u7684\u662f\u4e00\u4e2a <code>shape<\/code> \u53c2\u6570\u3002\u4e8c\u7ef4\u65f6\u8981\u5199\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.zeros((3, 3))\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\"><code>numpy.eye((3, 3))<\/code> \u9519<\/h3>\n\n\n\n<p>\u56e0\u4e3a <code>eye<\/code> \u8981\u7684\u662f\u4e24\u4e2a\u72ec\u7acb\u53c2\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.eye(3, 3)\n<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u4f60\u5df2\u7ecf\u6709\u5143\u7ec4 <code>(3, 3)<\/code>\uff0c\u5c31\u8981\u62c6\u5305\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>shape = (3, 3)\nnumpy.eye(*shape)\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\"><code>numpy.shape(arr, (2, 2))<\/code> \u9519<\/h3>\n\n\n\n<p>\u56e0\u4e3a <code>shape<\/code> \u4e0d\u662f\u201c\u628a\u6570\u7ec4\u53d8\u5f62\u201d\u7684\u52a8\u4f5c\u3002<br>\u8981\u6539\u5f62\u72b6\u5e94\u8be5\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.reshape(arr, (2, 2))\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>\u8fd9\u56db\u4e2a NumPy \u540d\u8bcd\u4e4b\u6240\u4ee5\u603b\u8ba9\u521d\u5b66\u8005\u6df7\u4e71\uff0c\u662f\u56e0\u4e3a\u5b83\u4eec\u90fd\u5728\u5904\u7406\u201c\u6570\u7ec4\u957f\u4ec0\u4e48\u6837\u201d\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f46\u5206\u5de5\u5e76\u4e0d\u4e00\u6837\u3002<\/p>\n\n\n\n<p><code>shape<\/code> \u53ea\u662f\u63cf\u8ff0\u6570\u7ec4\u5f53\u524d\u7684\u5f62\u72b6\uff0c\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u7ed3\u679c\u4fe1\u606f\u3002<br><code>reshape<\/code> \u662f\u5bf9\u5df2\u6709\u6570\u7ec4\u505a\u91cd\u65b0\u6392\u5e03\uff0c\u5b83\u4e0d\u521b\u9020\u65b0\u6570\u636e\uff0c\u53ea\u6539\u53d8\u6392\u5217\u65b9\u5f0f\u3002<br><code>zeros<\/code> \u662f\u521b\u5efa\u51fd\u6570\uff0c\u6309\u7ed9\u5b9a <code>shape<\/code> \u751f\u6210\u4e00\u4e2a\u5168 0 \u6570\u7ec4\u3002<br><code>eye<\/code> \u4e5f\u662f\u521b\u5efa\u51fd\u6570\uff0c\u4f46\u5b83\u662f\u4e13\u95e8\u7528\u6765\u751f\u6210\u4e8c\u7ef4\u5bf9\u89d2\u7ebf\u77e9\u9635\u7684\uff0c\u6240\u4ee5\u53c2\u6570\u5199\u6210 <code>N, M<\/code>\uff0c\u800c\u4e0d\u662f shape \u5143\u7ec4\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4ee5\u540e\u4f60\u518d\u9047\u5230\u7c7b\u4f3c\u9898\u76ee\uff0c\u5148\u4e0d\u8981\u6025\u7740\u8bb0\u8bed\u6cd5\uff0c\u800c\u662f\u5148\u95ee\u81ea\u5df1\u4e09\u4e2a\u95ee\u9898\uff1a<\/p>\n\n\n\n<p>\u7b2c\u4e00\uff0c\u6211\u73b0\u5728\u662f\u5728\u201c\u67e5\u770b\u5f62\u72b6\u201d\uff0c\u8fd8\u662f\u201c\u6539\u53d8\u5f62\u72b6\u201d\uff0c\u8fd8\u662f\u201c\u65b0\u5efa\u6570\u7ec4\u201d\uff1f<br>\u7b2c\u4e8c\uff0c\u5982\u679c\u662f\u65b0\u5efa\u6570\u7ec4\uff0c\u6211\u8981\u7684\u662f\u666e\u901a\u6570\u7ec4\u8fd8\u662f\u7279\u6b8a\u7684\u5bf9\u89d2\u7ebf\u6570\u7ec4\uff1f<br>\u7b2c\u4e09\uff0c\u8fd9\u4e2a\u51fd\u6570\u8981\u7684\u662f <code>shape<\/code>\uff0c\u8fd8\u662f\u8981\u62c6\u5f00\u7684 <code>N, M<\/code>\uff1f<\/p>\n\n\n\n<p>\u4f60\u53ea\u8981\u80fd\u628a\u8fd9\u4e09\u6b65\u5728\u8111\u5b50\u91cc\u8fc7\u4e00\u904d\uff0c\u57fa\u672c\u5c31\u4e0d\u4f1a\u518d\u628a\u8fd9\u51e0\u4e2a\u6982\u5ff5\u6405\u5728\u4e00\u8d77\u4e86\u3002<\/p>\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>\u8bd5\u7740\u5224\u65ad\u4e0b\u9762\u6bcf\u4e00\u53e5\u4ee3\u7801\u5206\u522b\u662f\u5728\u505a\u4ec0\u4e48\uff0c\u4e0d\u8981\u6025\u7740\u8fd0\u884c\uff0c\u5148\u53e3\u5934\u8bf4\u51fa\u5b83\u7684\u4f5c\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a = numpy.array(&#91;1, 2, 3, 4])\nprint(a.shape)\nprint(numpy.reshape(a, (2, 2)))\nprint(numpy.zeros((2, 2)))\nprint(numpy.eye(2, 2))\n<\/code><\/pre>\n\n\n\n<p>\u63d0\u793a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u54ea\u4e00\u53e5\u662f\u5728\u201c\u8bfb\u4fe1\u606f\u201d<\/li>\n\n\n\n<li>\u54ea\u4e00\u53e5\u662f\u5728\u201c\u91cd\u6392\u65e7\u6570\u636e\u201d<\/li>\n\n\n\n<li>\u54ea\u4e24\u53e5\u662f\u5728\u201c\u65b0\u5efa\u6570\u7ec4\u201d<\/li>\n\n\n\n<li>\u54ea\u4e00\u53e5\u521b\u5efa\u7684\u662f\u7279\u6b8a\u77e9\u9635<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u8865\u5145\u8bf4\u660e\uff1a\u4e3a\u4ec0\u4e48 <code>reshape<\/code> \u8981\u6c42\u5143\u7d20\u603b\u6570\u5fc5\u987b\u4e00\u81f4\uff1f\u8fd9\u4e00\u70b9\u5230\u5e95\u8be5\u600e\u4e48\u5feb\u901f\u5224\u65ad<\/h2>\n\n\n\n<p>\u8fd9\u662f NumPy \u91cc\u4e00\u4e2a\u7279\u522b\u57fa\u7840\u3001\u4f46\u53c8\u7279\u522b\u5bb9\u6613\u8ba9\u521d\u5b66\u8005\u201c\u77e5\u9053\u7ed3\u8bba\u5374\u6ca1\u771f\u6b63\u7406\u89e3\u201d\u7684\u70b9\u3002<\/p>\n\n\n\n<p>\u5f88\u591a\u4eba\u8bb0\u4f4f\u4e86\uff1a<\/p>\n\n\n\n<p>\u201c<code>reshape<\/code> \u524d\u540e\u5143\u7d20\u603b\u6570\u5fc5\u987b\u4e00\u81f4\u3002\u201d<\/p>\n\n\n\n<p>\u4f46\u662f\u4e00\u5230\u505a\u9898\u65f6\uff0c\u8fd8\u662f\u4f1a\u4e0b\u610f\u8bc6\u5730\u89c9\u5f97\uff1a<\/p>\n\n\n\n<p>\u201c\u6211\u53ea\u662f\u60f3\u628a\u5b83\u6539\u4e2a\u5f62\u72b6\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u884c\uff1f\u201d<br>\u201c\u660e\u660e\u90fd\u662f\u6570\u7ec4\uff0c\u4e3a\u4ec0\u4e48 <code>6<\/code> \u4e2a\u5143\u7d20\u4e0d\u80fd\u76f4\u63a5\u53d8\u6210 <code>2 x 4<\/code>\uff1f\u201d<br>\u201c\u8fd9\u4e2a\u62a5\u9519\u5230\u5e95\u662f\u5728\u8bf4\u4ec0\u4e48\uff1f\u201d<\/p>\n\n\n\n<p>\u6240\u4ee5\u8fd9\u4e00\u8282\u6211\u4eec\u4e0d\u53ea\u662f\u8bb0\u89c4\u5219\uff0c\u800c\u662f\u628a\u80cc\u540e\u7684\u539f\u56e0\u3001\u5224\u65ad\u65b9\u6cd5\u3001\u5e38\u89c1\u8bef\u533a\u4e00\u6b21\u8bb2\u900f\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\u3001\u5148\u8bf4\u7ed3\u8bba<\/h2>\n\n\n\n<p><code>reshape<\/code> \u4e0d\u662f\u5728\u201c\u521b\u9020\u65b0\u6570\u636e\u201d\uff0c\u800c\u662f\u5728\u201c\u91cd\u65b0\u6392\u5217\u5df2\u6709\u6570\u636e\u201d\u3002<\/p>\n\n\n\n<p>\u65e2\u7136\u5b83\u53ea\u662f\u91cd\u65b0\u6392\u5e03\uff0c\u90a3\u4e48\u539f\u6765\u6709\u591a\u5c11\u4e2a\u5143\u7d20\uff0c\u6539\u5b8c\u4ee5\u540e\u5c31\u8fd8\u5fc5\u987b\u6709\u591a\u5c11\u4e2a\u5143\u7d20\uff0c\u4e0d\u80fd\u591a\uff0c\u4e5f\u4e0d\u80fd\u5c11\u3002<\/p>\n\n\n\n<p>\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48 <code>reshape<\/code> \u8981\u6c42\uff1a<\/p>\n\n\n\n<p>\u65b0\u5f62\u72b6\u7684\u5143\u7d20\u603b\u6570 = \u539f\u6570\u7ec4\u7684\u5143\u7d20\u603b\u6570<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u4e3a\u4ec0\u4e48\u5fc5\u987b\u4e00\u81f4\uff1a\u56e0\u4e3a <code>reshape<\/code> \u53ea\u662f\u201c\u91cd\u6392\u201d\uff0c\u4e0d\u662f\u201c\u589e\u5220\u201d<\/h2>\n\n\n\n<p>\u5148\u770b\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u4f8b\u5b50\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\n\narr = numpy.array(&#91;1, 2, 3, 4, 5, 6])\nprint(arr)\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u6570\u7ec4\u91cc\u6709 6 \u4e2a\u5143\u7d20\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.reshape(arr, (2, 3))\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u4e48 NumPy \u505a\u7684\u4e8b\u60c5\u5176\u5b9e\u53ea\u662f\u628a\u8fd9 6 \u4e2a\u5143\u7d20\u6309 <code>2 \u884c 3 \u5217<\/code> \u91cd\u65b0\u6392\u4e00\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1 2 3]\n &#91;4 5 6]]\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u6ca1\u6709\u4ea7\u751f\u65b0\u5143\u7d20\uff0c\u4e5f\u6ca1\u6709\u4e22\u6389\u5143\u7d20\uff0c\u53ea\u662f\u6362\u4e86\u6446\u653e\u65b9\u5f0f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u90a3\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u53d8\u6210 <code>(2, 4)<\/code>\uff1f<\/h3>\n\n\n\n<p>\u56e0\u4e3a <code>(2, 4)<\/code> \u9700\u8981\u7684\u4f4d\u7f6e\u6570\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>2 * 4 = 8\n<\/code><\/pre>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\uff0c\u8fd9\u4e2a\u65b0\u5f62\u72b6\u4e00\u5171\u9700\u8981 8 \u4e2a\u683c\u5b50\u3002<\/p>\n\n\n\n<p>\u53ef\u4f60\u539f\u6765\u53ea\u6709 6 \u4e2a\u5143\u7d20\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>1 2 3 4 5 6\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u8fd8\u5dee 2 \u4e2a\uff0cNumPy \u4e0d\u77e5\u9053\u8be5\u8865\u4ec0\u4e48\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u5b83\u81ea\u5df1\u968f\u4fbf\u8865 0\uff0c\u90a3\u5c31\u4e0d\u662f\u201c\u91cd\u6392\u201d\u4e86\uff0c\u800c\u662f\u201c\u6539\u5185\u5bb9\u201d\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\">\u90a3\u4e3a\u4ec0\u4e48\u4e5f\u4e0d\u80fd\u53d8\u6210 <code>(5,)<\/code>\uff1f<\/h3>\n\n\n\n<p>\u56e0\u4e3a <code>(5,)<\/code> \u53ea\u9700\u8981 5 \u4e2a\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<p>\u4f46\u4f60\u539f\u6765\u6709 6 \u4e2a\u5143\u7d20\u3002<\/p>\n\n\n\n<p>\u90a3\u5c31\u4f1a\u591a\u51fa\u6765 1 \u4e2a\u5143\u7d20\u6ca1\u5730\u65b9\u653e\u3002<\/p>\n\n\n\n<p>NumPy \u4e5f\u4e0d\u80fd\u81ea\u5df1\u5e2e\u4f60\u968f\u4fbf\u5220\u6389\u4e00\u4e2a\uff0c\u56e0\u4e3a\u8fd9\u540c\u6837\u4e0d\u518d\u662f\u201c\u91cd\u6392\u201d\uff0c\u800c\u662f\u201c\u6539\u5185\u5bb9\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\">\u4e09\u3001\u6700\u672c\u8d28\u7684\u4e00\u53e5\u8bdd\uff1a\u4f4d\u7f6e\u6570\u5fc5\u987b\u548c\u5143\u7d20\u6570\u4e00\u4e00\u5bf9\u5e94<\/h2>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u628a <code>reshape<\/code> \u60f3\u6210\uff1a<\/p>\n\n\n\n<p>\u628a\u4e00\u5806\u73b0\u6210\u7684\u4e1c\u897f\uff0c\u91cd\u65b0\u88c5\u8fdb\u4e00\u4e2a\u65b0\u76d2\u5b50\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u539f\u6765\u6709\u51e0\u4e2a\u4e1c\u897f<\/li>\n\n\n\n<li>\u65b0\u76d2\u5b50\u91cc\u6709\u51e0\u4e2a\u4f4d\u7f6e<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u4e24\u4e2a\u6570\u5fc5\u987b\u5b8c\u5168\u4e00\u6837\u3002<\/p>\n\n\n\n<p>\u53ea\u6709\u8fd9\u6837\u624d\u80fd\u505a\u5230\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6bcf\u4e2a\u5143\u7d20\u90fd\u6709\u4f4d\u7f6e\u653e<\/li>\n\n\n\n<li>\u6bcf\u4e2a\u4f4d\u7f6e\u90fd\u521a\u597d\u653e\u4e00\u4e2a\u5143\u7d20<\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u4f4d\u7f6e\u592a\u591a\uff0c\u5c31\u4f1a\u201c\u5143\u7d20\u4e0d\u591f\u201d\uff1b<br>\u5982\u679c\u4f4d\u7f6e\u592a\u5c11\uff0c\u5c31\u4f1a\u201c\u4f4d\u7f6e\u4e0d\u591f\u653e\u201d\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5 <code>reshape<\/code> \u7684\u6838\u5fc3\u4e0d\u662f\u201c\u6539\u5f62\u72b6\u201d\uff0c\u800c\u662f\uff1a<\/p>\n\n\n\n<p>\u201c\u7528\u4e00\u4e2a\u65b0\u5e03\u5c40\u53bb\u5bb9\u7eb3\u540c\u6837\u6570\u91cf\u7684\u65e7\u5143\u7d20\u3002\u201d<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u600e\u4e48\u5feb\u901f\u5224\u65ad\u80fd\u4e0d\u80fd <code>reshape<\/code><\/h2>\n\n\n\n<p>\u5224\u65ad\u65b9\u6cd5\u5176\u5b9e\u975e\u5e38\u7b80\u5355\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b2c\u4e00\u6b65\uff1a\u5148\u6570\u539f\u6570\u7ec4\u4e00\u5171\u6709\u591a\u5c11\u4e2a\u5143\u7d20<\/h3>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>arr = numpy.array(&#91;1, 2, 3, 4, 5, 6])\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u5143\u7d20\u603b\u6570\u662f 6\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\u6b65\uff1a\u7b97\u65b0\u5f62\u72b6\u4e00\u5171\u9700\u8981\u591a\u5c11\u4e2a\u4f4d\u7f6e<\/h3>\n\n\n\n<p>\u6bd4\u5982\u60f3\u6539\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(2, 3)\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u5c31\u7b97\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>2 * 3 = 6\n<\/code><\/pre>\n\n\n\n<p>\u8bf4\u660e\u65b0\u5f62\u72b6\u4e5f\u9700\u8981 6 \u4e2a\u4f4d\u7f6e\uff0c\u53ef\u4ee5\u6539\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u60f3\u6539\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(3, 3)\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u5c31\u7b97\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>3 * 3 = 9\n<\/code><\/pre>\n\n\n\n<p>\u8bf4\u660e\u65b0\u5f62\u72b6\u9700\u8981 9 \u4e2a\u4f4d\u7f6e\uff0c\u4e0d\u53ef\u4ee5\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\">\u4e94\u3001\u6700\u5b9e\u7528\u7684\u5feb\u901f\u5224\u65ad\u516c\u5f0f<\/h2>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u76f4\u63a5\u8bb0\u6210\u4e00\u53e5\u89c4\u5219\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e00\u7ef4\u6570\u7ec4<\/h3>\n\n\n\n<p>\u5982\u679c\u539f\u6570\u7ec4\u6709 <code>n<\/code> \u4e2a\u5143\u7d20\uff0c\u90a3\u4e48\u65b0\u5f62\u72b6\u5404\u7ef4\u5ea6\u76f8\u4e58\u4e5f\u5fc5\u987b\u7b49\u4e8e <code>n<\/code>\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e8c\u7ef4\u6570\u7ec4<\/h3>\n\n\n\n<p>\u6bd4\u5982\u8981\u6539\u6210 <code>(a, b)<\/code>\uff0c\u5c31\u770b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a * b\n<\/code><\/pre>\n\n\n\n<p>\u662f\u4e0d\u662f\u7b49\u4e8e\u539f\u5143\u7d20\u603b\u6570\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09\u7ef4\u6570\u7ec4<\/h3>\n\n\n\n<p>\u6bd4\u5982\u8981\u6539\u6210 <code>(a, b, c)<\/code>\uff0c\u5c31\u770b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>a * b * c\n<\/code><\/pre>\n\n\n\n<p>\u662f\u4e0d\u662f\u7b49\u4e8e\u539f\u5143\u7d20\u603b\u6570\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u66f4\u4e00\u822c\u7684\u8bf4\u6cd5<\/h3>\n\n\n\n<p>\u65b0\u5f62\u72b6\u91cc\u6240\u6709\u7ef4\u5ea6\u8fde\u4e58\u7684\u7ed3\u679c\uff0c\u5fc5\u987b\u7b49\u4e8e\u539f\u5143\u7d20\u603b\u6570\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u51e0\u4e2a\u4f8b\u5b50\uff0c\u5e2e\u4f60\u5f7b\u5e95\u5f62\u6210\u611f\u89c9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b 1\uff1a\u53ef\u4ee5\u6539<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>arr = numpy.array(&#91;1, 2, 3, 4, 5, 6])\nnumpy.reshape(arr, (2, 3))\n<\/code><\/pre>\n\n\n\n<p>\u5224\u65ad\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>2 * 3 = 6\n<\/code><\/pre>\n\n\n\n<p>\u539f\u6765\u4e5f\u662f 6 \u4e2a\u5143\u7d20\uff0c\u6240\u4ee5\u53ef\u4ee5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b 2\uff1a\u4e5f\u53ef\u4ee5\u6539<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.reshape(arr, (3, 2))\n<\/code><\/pre>\n\n\n\n<p>\u5224\u65ad\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>3 * 2 = 6\n<\/code><\/pre>\n\n\n\n<p>\u4e5f\u7b49\u4e8e 6\uff0c\u6240\u4ee5\u4e5f\u53ef\u4ee5\u3002<\/p>\n\n\n\n<p>\u8fd9\u8bf4\u660e\uff1a<\/p>\n\n\n\n<p>\u540c\u6837 6 \u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u6709\u5f88\u591a\u79cd\u4e0d\u540c\u6392\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\">\u4f8b 3\uff1a\u4e0d\u53ef\u4ee5\u6539<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.reshape(arr, (4, 2))\n<\/code><\/pre>\n\n\n\n<p>\u5224\u65ad\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>4 * 2 = 8\n<\/code><\/pre>\n\n\n\n<p>\u4f46\u539f\u6765\u53ea\u6709 6 \u4e2a\u5143\u7d20\uff0c\u6240\u4ee5\u4e0d\u53ef\u4ee5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b 4\uff1a\u4e00\u7ef4\u53d8\u4e8c\u7ef4<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>arr = numpy.array(&#91;10, 20, 30, 40])\nnumpy.reshape(arr, (2, 2))\n<\/code><\/pre>\n\n\n\n<p>\u5224\u65ad\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>2 * 2 = 4\n<\/code><\/pre>\n\n\n\n<p>\u539f\u6765\u4e5f\u662f 4 \u4e2a\u5143\u7d20\uff0c\u6240\u4ee5\u53ef\u4ee5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f8b 5\uff1a\u4e8c\u7ef4\u518d\u53d8\u4e00\u7ef4<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>arr = numpy.array(&#91;&#91;1, 2, 3],\n                   &#91;4, 5, 6]])\nnumpy.reshape(arr, (6,))\n<\/code><\/pre>\n\n\n\n<p>\u539f\u6765\u8fd9\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u867d\u7136\u770b\u8d77\u6765\u662f\u201c2 \u884c 3 \u5217\u201d\uff0c\u4f46\u5143\u7d20\u603b\u6570\u8fd8\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>2 * 3 = 6\n<\/code><\/pre>\n\n\n\n<p>\u6240\u4ee5\u6539\u6210 <code>(6,)<\/code> \u4e5f\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n\n\n\n<p>\u8fd9\u4e5f\u8bf4\u660e\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u70b9\uff1a<\/p>\n\n\n\n<p><code>reshape<\/code> \u5173\u5fc3\u7684\u662f\u5143\u7d20\u603b\u6570\uff0c\u4e0d\u5173\u5fc3\u4f60\u539f\u6765\u662f\u51e0\u7ef4\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e03\u3001\u4e3a\u4ec0\u4e48\u5f88\u591a\u521d\u5b66\u8005\u4f1a\u5728\u8fd9\u91cc\u72af\u9519<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9519\u8bef 1\uff1a\u53ea\u770b\u201c\u884c\u5217\u201d\uff0c\u4e0d\u770b\u201c\u603b\u6570\u201d<\/h3>\n\n\n\n<p>\u5f88\u591a\u4eba\u4e00\u770b\u5230\u8981\u6539\u6210\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5c31\u5f00\u59cb\u76ef\u7740\u201c\u51e0\u884c\u51e0\u5217\u201d\uff0c\u4f46\u5fd8\u4e86\u6700\u5173\u952e\u7684\u662f\uff1a<\/p>\n\n\n\n<p>\u884c * \u5217 = \u5143\u7d20\u603b\u6570<\/p>\n\n\n\n<p>\u6bd4\u5982\u539f\u6570\u7ec4\u6709 8 \u4e2a\u5143\u7d20\uff0c\u4f60\u60f3\u5f53\u7136\u5199\u6210 <code>(3, 3)<\/code>\uff0c\u89c9\u5f97\u201c3 \u884c 3 \u5217\u5f88\u6574\u9f50\u201d\uff0c\u4f46\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>3 * 3 = 9\n<\/code><\/pre>\n\n\n\n<p>\u6839\u672c\u5bf9\u4e0d\u4e0a\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u4e0d\u662f\u201c\u597d\u4e0d\u597d\u770b\u201d\uff0c\u800c\u662f\u201c\u4e58\u79ef\u5bf9\u4e0d\u5bf9\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\">\u9519\u8bef 2\uff1a\u8bef\u4ee5\u4e3a <code>reshape<\/code> \u4f1a\u81ea\u52a8\u8865 0<\/h3>\n\n\n\n<p>\u6709\u4e9b\u521d\u5b66\u8005\u4f1a\u60f3\uff1a<\/p>\n\n\n\n<p>\u201c\u5c11\u51e0\u4e2a\u4f4d\u7f6e\uff0cNumPy \u4e0d\u80fd\u81ea\u52a8\u8865\u5417\uff1f\u201d<\/p>\n\n\n\n<p>\u4e0d\u80fd\u3002<\/p>\n\n\n\n<p>\u56e0\u4e3a <code>reshape<\/code> \u7684\u804c\u8d23\u4e0d\u662f\u201c\u8865\u5168\u6570\u7ec4\u201d\uff0c\u800c\u662f\u201c\u91cd\u65b0\u6392\u5217\u5df2\u6709\u5143\u7d20\u201d\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u771f\u7684\u60f3\u8865 0\uff0c\u90a3\u5c31\u5e94\u8be5\u5148\u81ea\u5df1\u521b\u5efa\u6216\u62fc\u63a5\u6570\u636e\uff0c\u800c\u4e0d\u662f\u6307\u671b <code>reshape<\/code> \u5e2e\u4f60\u8865\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u9519\u8bef 3\uff1a\u8bef\u4ee5\u4e3a <code>reshape<\/code> \u4f1a\u81ea\u52a8\u622a\u65ad\u591a\u4f59\u5143\u7d20<\/h3>\n\n\n\n<p>\u540c\u7406\uff0c\u6709\u4eba\u4e5f\u4f1a\u60f3\uff1a<\/p>\n\n\n\n<p>\u201c\u591a\u51fa\u6765\u7684\u5143\u7d20\u4e0d\u80fd\u81ea\u52a8\u6254\u6389\u5417\uff1f\u201d<\/p>\n\n\n\n<p>\u4e5f\u4e0d\u80fd\u3002<\/p>\n\n\n\n<p>NumPy \u4e0d\u4f1a\u66ff\u4f60\u51b3\u5b9a\u54ea\u4e9b\u5143\u7d20\u8be5\u4fdd\u7559\u3001\u54ea\u4e9b\u8be5\u5220\u6389\u3002<\/p>\n\n\n\n<p>\u8fd9\u662f\u7a0b\u5e8f\u5458\u81ea\u5df1\u7684\u903b\u8f91\u51b3\u5b9a\uff0c\u4e0d\u662f <code>reshape<\/code> \u7684\u804c\u8d23\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516b\u3001\u505a\u9898\u65f6\u600e\u4e48\u4e00\u773c\u5224\u65ad<\/h2>\n\n\n\n<p>\u8fd9\u91cc\u7ed9\u4f60\u4e00\u4e2a\u7279\u522b\u5b9e\u7528\u7684\u505a\u9898\u6d41\u7a0b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b9\u6cd5\u4e00\uff1a\u76f4\u63a5\u4e58<\/h3>\n\n\n\n<p>\u6bd4\u5982\u539f\u6570\u7ec4\u6709 12 \u4e2a\u5143\u7d20\uff0c\u4f60\u770b\u5230\u51e0\u4e2a\u5907\u9009\u5f62\u72b6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>(3, 4)<\/code><\/li>\n\n\n\n<li><code>(2, 5)<\/code><\/li>\n\n\n\n<li><code>(2, 2, 3)<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u4f60\u76f4\u63a5\u53e3\u7b97\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>3 * 4 = 12   \u2705\n2 * 5 = 10   \u274c\n2 * 2 * 3 = 12   \u2705\n<\/code><\/pre>\n\n\n\n<p>\u53ea\u8981\u4e58\u79ef\u7b49\u4e8e 12\uff0c\u5c31\u53ef\u4ee5\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\u6cd5\u4e8c\uff1a\u5148\u5206\u89e3\u5143\u7d20\u603b\u6570<\/h3>\n\n\n\n<p>\u6bd4\u5982\u539f\u6570\u7ec4\u6709 12 \u4e2a\u5143\u7d20\u3002<\/p>\n\n\n\n<p>\u4f60\u53ef\u4ee5\u5148\u60f3\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>12 = 1*12 = 2*6 = 3*4 = 2*2*3\n<\/code><\/pre>\n\n\n\n<p>\u90a3\u80fd\u6539\u6210\u7684\u5e38\u89c1\u5f62\u72b6\u5c31\u4f1a\u5f88\u5feb\u60f3\u5230\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>(1, 12)<\/code><\/li>\n\n\n\n<li><code>(12, 1)<\/code><\/li>\n\n\n\n<li><code>(2, 6)<\/code><\/li>\n\n\n\n<li><code>(6, 2)<\/code><\/li>\n\n\n\n<li><code>(3, 4)<\/code><\/li>\n\n\n\n<li><code>(4, 3)<\/code><\/li>\n\n\n\n<li><code>(2, 2, 3)<\/code> \u7b49\u7b49<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u4e2a\u65b9\u6cd5\u5bf9\u9009\u62e9\u9898\u7279\u522b\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\">\u4e5d\u3001\u518d\u8865\u4e00\u4e2a\u975e\u5e38\u5b9e\u7528\u7684\u77e5\u8bc6\uff1a<code>-1<\/code> \u81ea\u52a8\u63a8\u5bfc<\/h2>\n\n\n\n<p>NumPy \u5141\u8bb8\u4f60\u5728 <code>reshape<\/code> \u91cc\u5199\u4e00\u4e2a <code>-1<\/code>\uff0c\u8868\u793a\uff1a<\/p>\n\n\n\n<p>\u201c\u8fd9\u4e00\u7ef4\u4f60\u5e2e\u6211\u81ea\u52a8\u7b97\u51fa\u6765\u3002\u201d<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>arr = numpy.array(&#91;1, 2, 3, 4, 5, 6])\nprint(numpy.reshape(arr, (2, -1)))\n<\/code><\/pre>\n\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;&#91;1 2 3]\n &#91;4 5 6]]\n<\/code><\/pre>\n\n\n\n<p>\u56e0\u4e3a\u539f\u6765\u603b\u5171\u6709 6 \u4e2a\u5143\u7d20\uff0c\u5df2\u7ecf\u77e5\u9053\u7b2c\u4e00\u7ef4\u662f 2\uff0c\u90a3\u4e48\u7b2c\u4e8c\u7ef4\u5c31\u5fc5\u987b\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>6 \/ 2 = 3\n<\/code><\/pre>\n\n\n\n<p>\u6240\u4ee5 <code>-1<\/code> \u4f1a\u81ea\u52a8\u53d8\u6210 3\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u8fd9\u4e5f\u8fd8\u662f\u9075\u5b88\u201c\u603b\u6570\u4e00\u81f4\u201d\uff1f<\/h3>\n\n\n\n<p>\u56e0\u4e3a <code>-1<\/code> \u4e0d\u662f\u4f8b\u5916\uff0c\u5b83\u53ea\u662f\u8ba9 NumPy \u5e2e\u4f60\u7b97\u7f3a\u7684\u90a3\u4e2a\u6570\u5b57\uff0c\u4f46\u672c\u8d28\u4e0a\u8fd8\u662f\u5728\u4fdd\u8bc1\uff1a<\/p>\n\n\n\n<p>\u603b\u5143\u7d20\u6570\u4e00\u81f4\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.reshape(arr, (3, -1))\n<\/code><\/pre>\n\n\n\n<p>\u539f\u6765\u6709 6 \u4e2a\u5143\u7d20\uff0c\u7b2c\u4e00\u7ef4\u662f 3\uff0c\u90a3\u7b2c\u4e8c\u7ef4\u5c31\u81ea\u52a8\u7b97\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>6 \/ 3 = 2\n<\/code><\/pre>\n\n\n\n<p>\u4e8e\u662f\u5c31\u662f <code>(3, 2)<\/code>\u3002<\/p>\n\n\n\n<p>\u4f46\u5982\u679c\u4f60\u5199\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>numpy.reshape(arr, (4, -1))\n<\/code><\/pre>\n\n\n\n<p>\u539f\u6765\u6709 6 \u4e2a\u5143\u7d20\uff0c\u7b2c\u4e00\u7ef4\u662f 4\uff0c\u90a3\u53e6\u4e00\u7ef4\u5c31\u5f97\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>6 \/ 4 = 1.5\n<\/code><\/pre>\n\n\n\n<p>\u4e0d\u662f\u6574\u6570\uff0c\u8bf4\u660e\u6839\u672c\u6ca1\u6cd5\u6574\u9f50\u6392\u5e03\uff0c\u6240\u4ee5\u5c31\u4f1a\u62a5\u9519\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5341\u3001\u4f60\u53ef\u4ee5\u628a <code>reshape<\/code> \u60f3\u6210\u201c\u6362\u76d2\u5b50\u88c5\u7403\u201d<\/h2>\n\n\n\n<p>\u8fd9\u662f\u6700\u9002\u5408\u521d\u5b66\u8005\u7684\u76f4\u89c9\u6a21\u578b\u3002<\/p>\n\n\n\n<p>\u5047\u8bbe\u4f60\u73b0\u5728\u6709 6 \u4e2a\u7403\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u25cf \u25cf \u25cf \u25cf \u25cf \u25cf\n<\/code><\/pre>\n\n\n\n<p>\u4f60\u60f3\u628a\u5b83\u4eec\u88c5\u8fdb\u4e00\u4e2a\u65b0\u76d2\u5b50\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u76d2\u5b50 1\uff1a2 \u884c 3 \u5217<\/h3>\n\n\n\n<p>\u4e00\u5171 6 \u4e2a\u683c\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u25a1 \u25a1 \u25a1\n\u25a1 \u25a1 \u25a1\n<\/code><\/pre>\n\n\n\n<p>\u521a\u597d\u653e\u4e0b\uff0c\u53ef\u4ee5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u76d2\u5b50 2\uff1a3 \u884c 3 \u5217<\/h3>\n\n\n\n<p>\u4e00\u5171 9 \u4e2a\u683c\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u25a1 \u25a1 \u25a1\n\u25a1 \u25a1 \u25a1\n\u25a1 \u25a1 \u25a1\n<\/code><\/pre>\n\n\n\n<p>\u4f60\u53ea\u6709 6 \u4e2a\u7403\uff0c\u8fd8\u5dee 3 \u4e2a\uff0c\u4e0d\u80fd\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u76d2\u5b50 3\uff1a1 \u884c 5 \u5217<\/h3>\n\n\n\n<p>\u4e00\u5171 5 \u4e2a\u683c\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u25a1 \u25a1 \u25a1 \u25a1 \u25a1\n<\/code><\/pre>\n\n\n\n<p>\u4f60\u6709 6 \u4e2a\u7403\uff0c\u591a\u51fa 1 \u4e2a\u6ca1\u5730\u65b9\u653e\uff0c\u4e5f\u4e0d\u80fd\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u6240\u4ee5\u672c\u8d28\u4e0a\uff0c<code>reshape<\/code> \u5c31\u662f\uff1a<\/p>\n\n\n\n<p>\u6362\u76d2\u5b50\uff0c\u4f46\u4e0d\u6539\u53d8\u7403\u7684\u6570\u91cf\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5341\u4e00\u3001\u672c\u8282\u5c0f\u7ed3<\/h2>\n\n\n\n<p><code>reshape<\/code> \u8981\u6c42\u5143\u7d20\u603b\u6570\u5fc5\u987b\u4e00\u81f4\uff0c\u6839\u672c\u539f\u56e0\u5728\u4e8e\uff1a\u5b83\u4e0d\u662f\u5728\u521b\u5efa\u65b0\u6570\u636e\uff0c\u4e5f\u4e0d\u662f\u5728\u5220\u9664\u65e7\u6570\u636e\uff0c\u800c\u53ea\u662f\u628a\u540c\u4e00\u6279\u5143\u7d20\u91cd\u65b0\u5b89\u6392\u4f4d\u7f6e\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0c\u65b0\u5f62\u72b6\u4e2d\u4e00\u5171\u6709\u591a\u5c11\u4e2a\u4f4d\u7f6e\uff0c\u5fc5\u987b\u548c\u539f\u6570\u7ec4\u4e2d\u4e00\u5171\u6709\u591a\u5c11\u4e2a\u5143\u7d20\u5b8c\u5168\u4e00\u81f4\u3002\u4f4d\u7f6e\u591a\u4e86\uff0c\u5143\u7d20\u4e0d\u591f\u653e\uff1b\u4f4d\u7f6e\u5c11\u4e86\uff0c\u5143\u7d20\u653e\u4e0d\u4e0b\u3002NumPy \u4e0d\u4f1a\u66ff\u4f60\u81ea\u52a8\u8865\u5143\u7d20\uff0c\u4e5f\u4e0d\u4f1a\u66ff\u4f60\u81ea\u52a8\u5220\u5143\u7d20\uff0c\u56e0\u4e3a\u90a3\u5df2\u7ecf\u4e0d\u662f\u201c\u91cd\u6392\u201d\u4e86\uff0c\u800c\u662f\u5728\u4fee\u6539\u6570\u636e\u672c\u8eab\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u4ee5\u540e\u4f60\u5224\u65ad\u4e00\u4e2a <code>reshape<\/code> \u80fd\u4e0d\u80fd\u505a\uff0c\u4e0d\u8981\u9760\u611f\u89c9\uff0c\u4e5f\u4e0d\u8981\u770b\u201c\u8fd9\u4e2a\u5f62\u72b6\u987a\u4e0d\u987a\u773c\u201d\uff0c\u53ea\u505a\u4e00\u4ef6\u4e8b\u5c31\u591f\u4e86\uff1a<\/p>\n\n\n\n<p>\u628a\u65b0\u5f62\u72b6\u7684\u5404\u7ef4\u5ea6\u4e58\u8d77\u6765\uff0c\u770b\u5b83\u662f\u5426\u7b49\u4e8e\u539f\u6570\u7ec4\u7684\u5143\u7d20\u603b\u6570\u3002<\/p>\n\n\n\n<p>\u53ea\u8981\u4e58\u79ef\u76f8\u7b49\uff0c\u5c31\u53ef\u4ee5\uff1b\u4e0d\u76f8\u7b49\uff0c\u5c31\u4e0d\u53ef\u4ee5\u3002<\/p>\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<p>\u8bd5\u7740\u5148\u4e0d\u8981\u8fd0\u884c\u4ee3\u7801\uff0c\u76f4\u63a5\u5224\u65ad\u4e0b\u9762\u54ea\u4e9b\u53ef\u4ee5\u6210\u529f\uff0c\u54ea\u4e9b\u4f1a\u62a5\u9519\uff0c\u5e76\u8bf4\u51fa\u7406\u7531\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import numpy\n\narr = numpy.array(&#91;1, 2, 3, 4, 5, 6, 7, 8])\n\nprint(numpy.reshape(arr, (2, 4)))\nprint(numpy.reshape(arr, (4, 2)))\nprint(numpy.reshape(arr, (3, 3)))\nprint(numpy.reshape(arr, (2, 2, 2)))\n<\/code><\/pre>\n\n\n\n<p>\u63d0\u793a\uff1a<\/p>\n\n\n\n<p>\u5148\u6570\u539f\u6570\u7ec4\u6709\u51e0\u4e2a\u5143\u7d20\uff0c\u518d\u5206\u522b\u7b97\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>2 * 4<\/code><\/li>\n\n\n\n<li><code>4 * 2<\/code><\/li>\n\n\n\n<li><code>3 * 3<\/code><\/li>\n\n\n\n<li><code>2 * 2 * 2<\/code><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u6bb5\u4ee3\u7801\u539f\u672c\u60f3\u505a\u4ec0\u4e48 \u76ee\u6807\u5176\u5b9e\u5f88\u660e\u786e\uff1a\u8bfb\u53d6\u4e00\u884c\u8f93\u5165\u91cc\u7684 N M\uff0c\u7136\u540e\u751f\u6210\u4e00\u4e2a N x M \u7684\u6570\u7ec4\uff0c\u4e3b\u5bf9\u89d2\u7ebf\u662f  [&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-2067","post","type-post","status-publish","format-standard","hentry","category-text"],"_links":{"self":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2067","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=2067"}],"version-history":[{"count":1,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2067\/revisions"}],"predecessor-version":[{"id":2069,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/posts\/2067\/revisions\/2069"}],"wp:attachment":[{"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=2067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=2067"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.preluna.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=2067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}