{"id":502,"date":"2023-12-09T10:07:45","date_gmt":"2023-11-07T20:56:49","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%9c%a8python%e4%b8%ad%e4%bd%bf%e7%94%a8numpy-sum\/"},"modified":"2025-08-02T14:27:35","modified_gmt":"2025-08-02T06:27:35","slug":"%e5%9c%a8python%e4%b8%ad%e4%bd%bf%e7%94%a8numpy-sum","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8python%e4%b8%ad%e4%bd%bf%e7%94%a8numpy-sum\/","title":{"rendered":"Python NumPy sum()\u51fd\u6570\u5b8c\u5168\u6307\u5357\uff1a\u7528\u6cd5\u3001\u793a\u4f8b\u4e0e\u6280\u5de7"},"content":{"rendered":"<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5728Python\u4e2d\u4f7f\u7528numpy.sum()\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51711\u90e8\u5206\uff09\u3002<\/p>\n<p>\u5185\u5bb9\u7247\u6bb5: Python\u7684numpy.sum()\u51fd\u6570\u7528\u4e8e\u6cbf\u7ed9\u5b9a\u8f74\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u7684\u548c\u3002<\/p>\n<h2>Python\u7684numpy\u5e93\u4e2dsum()\u51fd\u6570\u7684\u8bed\u6cd5<\/h2>\n<p>Python NumPy sum()\u65b9\u6cd5\u7684\u8bed\u6cd5\u662f\uff1a<\/p>\n<pre class=\"post-pre\"><code>sum(array, axis, dtype, out, keepdims, initial)\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li>\u6570\u7ec4\u5143\u7d20\u7528\u4e8e\u8ba1\u7b97\u603b\u548c\u3002<\/li>\n<li>\u5982\u679c\u672a\u63d0\u4f9b\u8f74\u53c2\u6570\uff0c\u5219\u8fd4\u56de\u6240\u6709\u5143\u7d20\u7684\u603b\u548c\u3002\u5982\u679c\u8f74\u662f\u4e00\u4e2a\u6574\u6570\u5143\u7ec4\uff0c\u5219\u8fd4\u56de\u7ed9\u5b9a\u8f74\u4e0a\u6240\u6709\u5143\u7d20\u7684\u603b\u548c\u3002<\/li>\n<li>\u6211\u4eec\u53ef\u4ee5\u6307\u5b9adtype\u53c2\u6570\u6765\u6307\u5b9a\u8fd4\u56de\u7684\u8f93\u51fa\u6570\u636e\u7c7b\u578b\u3002<\/li>\n<li>out\u53d8\u91cf\u7528\u4e8e\u6307\u5b9a\u653e\u7f6e\u7ed3\u679c\u7684\u6570\u7ec4\u3002\u8fd9\u662f\u4e00\u4e2a\u53ef\u9009\u53c2\u6570\u3002<\/li>\n<li>keepdims\u662f\u4e00\u4e2a\u5e03\u5c14\u53c2\u6570\u3002\u5982\u679c\u8bbe\u7f6e\u4e3aTrue\uff0c\u5219\u88ab\u7f29\u51cf\u7684\u8f74\u5728\u7ed3\u679c\u4e2d\u4fdd\u7559\u4e3a\u957f\u5ea6\u4e3a\u4e00\u7684\u7ef4\u5ea6\u3002<\/li>\n<li>initial\u53c2\u6570\u6307\u5b9a\u6c42\u548c\u7684\u8d77\u59cb\u503c\u3002<\/li>\n<\/ul>\n<h2>Python numpy sum() \u793a\u4f8b<\/h2>\n<p>\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e9bnumpy.sum()\u51fd\u6570\u7684\u793a\u4f8b\u3002<\/p>\n<h3>\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\u7684\u603b\u548c<\/h3>\n<p>\u5982\u679c\u6211\u4eec\u53ea\u901a\u8fc7\u6570\u7ec4\u5c06\u5176\u4f20\u9012\u7ed9 sum() \u51fd\u6570\uff0c\u5b83\u5c06\u88ab\u6241\u5e73\u5316\uff0c\u5e76\u8fd4\u56de\u6240\u6709\u5143\u7d20\u7684\u603b\u548c\u3002<\/p>\n<pre class=\"post-pre\"><code>import numpy as np\r\n\r\narray1 = np.array(\r\n    [[1, 2],\r\n     [3, 4],\r\n     [5, 6]])\r\n\r\ntotal = np.sum(array1)\r\nprint(f'\u6240\u6709\u5143\u7d20\u7684\u603b\u548c\u4e3a {total}')\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a\u6240\u6709\u5143\u7d20\u7684\u548c\u4e3a21\u3002<\/p>\n<h3>2. \u6cbf\u8f74\u7684\u6570\u7ec4\u5143\u7d20\u4e4b\u548c<\/h3>\n<p>\u5982\u679c\u6211\u4eec\u6307\u5b9a\u4e86\u8f74\u503c\uff0c\u5c06\u8fd4\u56de\u6cbf\u8be5\u8f74\u7684\u5143\u7d20\u4e4b\u548c\u3002\u5982\u679c\u6570\u7ec4\u5f62\u72b6\u4e3a\uff08X\uff0cY\uff09\uff0c\u5219\u6cbf0\u8f74\u7684\u6c42\u548c\u7ed3\u679c\u5f62\u72b6\u5c06\u4e3a\uff081\uff0cY\uff09\u3002\u6cbf1\u8f74\u7684\u6c42\u548c\u7ed3\u679c\u5f62\u72b6\u5c06\u4e3a\uff081\uff0cX\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code>import numpy as np\r\n\r\narray1 = np.array(\r\n    [[1, 2],\r\n     [3, 4],\r\n     [5, 6]])\r\n\r\ntotal_0_axis = np.sum(array1, axis=0)\r\nprint(f'0\u8f74\u4e0a\u5143\u7d20\u7684\u603b\u548c\u4e3a {total_0_axis}')\r\n\r\ntotal_1_axis = np.sum(array1, axis=1)\r\nprint(f'1\u8f74\u4e0a\u5143\u7d20\u7684\u603b\u548c\u4e3a {total_1_axis}')\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre class=\"post-pre\"><code>0\u8f74\u4e0a\u5143\u7d20\u7684\u603b\u548c\u4e3a [ 9 12]\r\n1\u8f74\u4e0a\u5143\u7d20\u7684\u603b\u548c\u4e3a [ 3  7 11]\r\n<\/code><\/pre>\n<h3>3. \u6307\u5b9a\u6c42\u548c\u7684\u8f93\u51fa\u6570\u636e\u7c7b\u578b<\/h3>\n<pre class=\"post-pre\"><code>import numpy as np\r\n\r\narray1 = np.array(\r\n    [[1, 2],\r\n     [3, 4]])\r\n\r\ntotal_1_axis = np.sum(array1, axis=1, dtype=float)\r\nprint(f'1\u8f74\u4e0a\u5143\u7d20\u7684\u603b\u548c\u4e3a {total_1_axis}')\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a1\u8f74\u4e0a\u5143\u7d20\u7684\u603b\u548c\u4e3a[3. 7.]<\/p>\n<h3>4. \u603b\u548c\u7684\u521d\u59cb\u503c<\/h3>\n<pre class=\"post-pre\"><code>import numpy as np\r\n\r\narray1 = np.array(\r\n    [[1, 2],\r\n     [3, 4]])\r\n\r\ntotal_1_axis = np.sum(array1, axis=1, initial=10)\r\nprint(f'1\u8f74\u4e0a\u5143\u7d20\u7684\u603b\u548c\u4e3a {total_1_axis}')\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\uff1a1\u8f74\u4e0a\u5143\u7d20\u7684\u603b\u548c\u4e3a[13 17] \u53c2\u8003\uff1aAPI\u6587\u6863<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5728Python\u4e2d\u4f7f\u7528numpy.sum()\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51711\u90e8\u5206\uff09\u3002 \u5185\u5bb9\u7247\u6bb5: Python\u7684nu [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1508,1507,1477,1509,1510],"class_list":["post-502","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-numpy","tag-python-numpy","tag-python","tag-sum","tag-1510"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python NumPy sum()\u51fd\u6570\u5b8c\u5168\u6307\u5357\uff1a\u7528\u6cd5\u3001\u793a\u4f8b\u4e0e\u6280\u5de7 - Blog - Silicon Cloud<\/title>\n<meta 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sum()\u51fd\u6570\u5b8c\u5168\u6307\u5357\uff1a\u7528\u6cd5\u3001\u793a\u4f8b\u4e0e\u6280\u5de7\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecdPython\u4e2dNumPy\u5e93\u7684sum()\u51fd\u6570\u4f7f\u7528\u65b9\u6cd5\uff0c\u5305\u62ec\u57fa\u672c\u8bed\u6cd5\u3001\u53c2\u6570\u8bf4\u660e\u3001\u5b9e\u7528\u793a\u4f8b\u548c\u5e38\u89c1\u95ee\u9898\u89e3\u7b54\u3002\u638c\u63e1numpy.sum()\u51fd\u6570\uff0c\u8f7b\u677e\u5b9e\u73b0\u6570\u7ec4\u6c42\u548c\u64cd\u4f5c\uff0c\u63d0\u9ad8Python\u6570\u636e\u5206\u6790\u6548\u7387\u3002\u9002\u5408\u521d\u5b66\u8005\u548c\u8fdb\u9636\u7528\u6237\u53c2\u8003\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728python\u4e2d\u4f7f\u7528numpy-sum\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-07T20:56:49+00:00\" \/>\n<meta property=\"article:modified_time\" 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Cloud","description":"\u672c\u6587\u8be6\u7ec6\u4ecb\u7ecdPython\u4e2dNumPy\u5e93\u7684sum()\u51fd\u6570\u4f7f\u7528\u65b9\u6cd5\uff0c\u5305\u62ec\u57fa\u672c\u8bed\u6cd5\u3001\u53c2\u6570\u8bf4\u660e\u3001\u5b9e\u7528\u793a\u4f8b\u548c\u5e38\u89c1\u95ee\u9898\u89e3\u7b54\u3002\u638c\u63e1numpy.sum()\u51fd\u6570\uff0c\u8f7b\u677e\u5b9e\u73b0\u6570\u7ec4\u6c42\u548c\u64cd\u4f5c\uff0c\u63d0\u9ad8Python\u6570\u636e\u5206\u6790\u6548\u7387\u3002\u9002\u5408\u521d\u5b66\u8005\u548c\u8fdb\u9636\u7528\u6237\u53c2\u8003\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u5728python\u4e2d\u4f7f\u7528numpy-sum\/","og_locale":"zh_CN","og_type":"article","og_title":"Python NumPy 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