{"id":968571,"date":"2024-12-27T05:08:21","date_gmt":"2024-12-26T21:08:21","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/968571.html"},"modified":"2024-12-27T05:08:23","modified_gmt":"2024-12-26T21:08:23","slug":"%e5%8f%98%e9%87%8f%e5%a6%82%e4%bd%95%e8%87%aa%e5%8a%a8%e7%b4%af%e5%8a%a0python","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/968571.html","title":{"rendered":"\u53d8\u91cf\u5982\u4f55\u81ea\u52a8\u7d2f\u52a0python"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24183301\/b5ee1423-e1ed-4878-b1dc-1343070784a4.webp\" alt=\"\u53d8\u91cf\u5982\u4f55\u81ea\u52a8\u7d2f\u52a0python\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u53d8\u91cf\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\u81ea\u52a8\u7d2f\u52a0\uff0c\u5176\u4e2d\u5305\u62ec\u4f7f\u7528\u7b80\u5355\u7684\u5faa\u73af\u7ed3\u6784\u3001<code>itertools<\/code>\u6a21\u5757\u548c\u751f\u6210\u5668\u7b49\u65b9\u6cd5\u3002\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528\u5faa\u73af\u7ed3\u6784\u662f\u6700\u76f4\u63a5\u548c\u7b80\u5355\u7684\u65b9\u6cd5\uff0c\u5c24\u5176\u662f<code>for<\/code>\u5faa\u73af\u548c<code>while<\/code>\u5faa\u73af\u3002\u5229\u7528\u8fd9\u4e9b\u5faa\u73af\u7ed3\u6784\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u5c06\u4e00\u4e2a\u53d8\u91cf\u8fdb\u884c\u7d2f\u52a0\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u4e00\u3001\u4f7f\u7528<code>for<\/code>\u5faa\u73af\u8fdb\u884c\u7d2f\u52a0<br \/>\u5728Python\u4e2d\uff0c<code>for<\/code>\u5faa\u73af\u662f\u4e00\u79cd\u5e38\u7528\u7684\u8fed\u4ee3\u5de5\u5177\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7<code>for<\/code>\u5faa\u73af\u904d\u5386\u4e00\u4e2a\u8303\u56f4\uff0c\u7136\u540e\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u8fdb\u884c\u7d2f\u52a0\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">total = 0<\/p>\n<p>for i in range(10):<\/p>\n<p>    total += i<\/p>\n<p>print(total)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86<code>range(10)<\/code>\u6765\u751f\u6210\u4ece0\u52309\u7684\u6574\u6570\u5e8f\u5217\u3002\u901a\u8fc7<code>for<\/code>\u5faa\u73af\u904d\u5386\u8fd9\u4e2a\u5e8f\u5217\uff0c\u5e76\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u5c06\u5f53\u524d\u6570\u503c<code>i<\/code>\u7d2f\u52a0\u5230<code>total<\/code>\u4e0a\uff0c\u6700\u7ec8\u5f97\u5230\u7d2f\u52a0\u7684\u7ed3\u679c\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u4f7f\u7528<code>while<\/code>\u5faa\u73af\u8fdb\u884c\u7d2f\u52a0<br \/>\u4e0e<code>for<\/code>\u5faa\u73af\u7c7b\u4f3c\uff0c<code>while<\/code>\u5faa\u73af\u4e5f\u662f\u4e00\u79cd\u5e38\u7528\u7684\u5faa\u73af\u7ed3\u6784\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u9700\u8981\u6301\u7eed\u6267\u884c\u67d0\u4e2a\u64cd\u4f5c\u76f4\u5230\u67d0\u4e2a\u6761\u4ef6\u4e0d\u518d\u6ee1\u8db3\u7684\u60c5\u5883\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">total = 0<\/p>\n<p>i = 0<\/p>\n<p>while i &lt; 10:<\/p>\n<p>    total += i<\/p>\n<p>    i += 1<\/p>\n<p>print(total)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528<code>while<\/code>\u5faa\u73af\u6765\u5b9e\u73b0\u7d2f\u52a0\u3002\u5faa\u73af\u7684\u7ec8\u6b62\u6761\u4ef6\u662f<code>i &lt; 10<\/code>\uff0c\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\uff0c\u6211\u4eec\u5c06<code>i<\/code>\u7d2f\u52a0\u5230<code>total<\/code>\u4e0a\uff0c\u5e76\u5c06<code>i<\/code>\u589e1\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u4f7f\u7528<code>itertools<\/code>\u6a21\u5757\u8fdb\u884c\u7d2f\u52a0<br \/><code>itertools<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u7ec4\u7528\u4e8e\u9ad8\u6548\u5faa\u73af\u7684\u51fd\u6570\u5de5\u5177\uff0c\u5176\u4e2d\u7684<code>accumulate<\/code>\u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u7d2f\u52a0\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import itertools<\/p>\n<p>data = [1, 2, 3, 4, 5]<\/p>\n<p>result = list(itertools.accumulate(data))<\/p>\n<p>print(result)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528<code>itertools.accumulate<\/code>\u5bf9\u5217\u8868<code>data<\/code>\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u7d2f\u52a0\uff0c\u5e76\u5c06\u7ed3\u679c\u8f6c\u6362\u4e3a\u5217\u8868\u5f62\u5f0f\u3002\u8fd9\u4e2a\u65b9\u6cd5\u5bf9\u4e8e\u9700\u8981\u5904\u7406\u8f83\u5927\u6570\u636e\u96c6\u7684\u7d2f\u52a0\u64cd\u4f5c\u5c24\u4e3a\u6709\u6548\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u4f7f\u7528\u751f\u6210\u5668\u8fdb\u884c\u7d2f\u52a0<br \/>\u751f\u6210\u5668\u662fPython\u4e2d\u4e00\u79cd\u7279\u6b8a\u7684\u8fed\u4ee3\u5668\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4ee5\u60f0\u6027\u6c42\u503c\u7684\u65b9\u5f0f\u751f\u6210\u5e8f\u5217\u6570\u636e\u3002\u4f7f\u7528\u751f\u6210\u5668\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u7d2f\u52a0\u5668\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def accumulator():<\/p>\n<p>    total = 0<\/p>\n<p>    while True:<\/p>\n<p>        value = yield total<\/p>\n<p>        if value is None:<\/p>\n<p>            break<\/p>\n<p>        total += value<\/p>\n<p>gen = accumulator()<\/p>\n<p>next(gen)  # Initialize the generator<\/p>\n<p>print(gen.send(1))  # Accumulate 1<\/p>\n<p>print(gen.send(2))  # Accumulate 2<\/p>\n<p>print(gen.send(3))  # Accumulate 3<\/p>\n<p>gen.close()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u751f\u6210\u5668\u51fd\u6570<code>accumulator<\/code>\uff0c\u5b83\u4f7f\u7528<code>yield<\/code>\u5173\u952e\u5b57\u6765\u4ea7\u751f\u7d2f\u52a0\u7684\u7ed3\u679c\u3002\u901a\u8fc7<code>send<\/code>\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u52a8\u6001\u5730\u5c06\u6570\u503c\u4f20\u9012\u7ed9\u751f\u6210\u5668\uff0c\u5e76\u8fdb\u884c\u7d2f\u52a0\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u4f7f\u7528<code>reduce<\/code>\u51fd\u6570\u8fdb\u884c\u7d2f\u52a0<br \/><code>reduce<\/code>\u51fd\u6570\u5728Python\u4e2d\u7528\u4e8e\u5bf9\u5e8f\u5217\u8fdb\u884c\u7d2f\u8ba1\u8ba1\u7b97\u3002\u5c3d\u7ba1\u5728Python 3\u4e2d\uff0c<code>reduce<\/code>\u51fd\u6570\u88ab\u79fb\u5230<code>functools<\/code>\u6a21\u5757\u4e2d\uff0c\u4f46\u5b83\u4ecd\u7136\u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u5de5\u5177\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from functools import reduce<\/p>\n<p>data = [1, 2, 3, 4, 5]<\/p>\n<p>result = reduce(lambda x, y: x + y, data)<\/p>\n<p>print(result)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528<code>reduce<\/code>\u51fd\u6570\u5bf9\u5217\u8868<code>data<\/code>\u8fdb\u884c\u7d2f\u52a0\u3002<code>reduce<\/code>\u51fd\u6570\u63a5\u6536\u4e00\u4e2a\u51fd\u6570\u548c\u4e00\u4e2a\u5e8f\u5217\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u901a\u8fc7\u7d2f\u79ef\u7684\u65b9\u5f0f\u5c06\u5e8f\u5217\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<\/p>\n<p><p>\u516d\u3001\u603b\u7ed3\u4e0e\u5e94\u7528\u573a\u666f<br \/>\u5728Python\u4e2d\u5b9e\u73b0\u53d8\u91cf\u81ea\u52a8\u7d2f\u52a0\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u9009\u62e9\u9002\u5408\u7684\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5e94\u7528\u573a\u666f\u548c\u9700\u6c42\u3002\u5bf9\u4e8e\u7b80\u5355\u7684\u7d2f\u52a0\u4efb\u52a1\uff0c<code>for<\/code>\u5faa\u73af\u548c<code>while<\/code>\u5faa\u73af\u662f\u6700\u76f4\u63a5\u7684\u9009\u62e9\uff1b\u5bf9\u4e8e\u9700\u8981\u5904\u7406\u5927\u578b\u6570\u636e\u96c6\u6216\u590d\u6742\u7d2f\u52a0\u903b\u8f91\u7684\u60c5\u51b5\uff0c<code>itertools.accumulate<\/code>\u548c\u751f\u6210\u5668\u63d0\u4f9b\u4e86\u66f4\u4e3a\u7075\u6d3b\u548c\u9ad8\u6548\u7684\u89e3\u51b3\u65b9\u6848\u3002<code>reduce<\/code>\u51fd\u6570\u867d\u7136\u4f7f\u7528\u9891\u7387\u8f83\u4f4e\uff0c\u4f46\u5728\u67d0\u4e9b\u7279\u5b9a\u573a\u666f\u4e0b\u4e5f\u53ef\u4ee5\u63d0\u4f9b\u7b80\u6d01\u4f18\u96c5\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<\/p>\n<p><p>\u4e86\u89e3\u8fd9\u4e9b\u4e0d\u540c\u7684\u65b9\u6cd5\uff0c\u4e0d\u4ec5\u80fd\u591f\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6548\u7387\uff0c\u8fd8\u53ef\u4ee5\u4e3a\u6211\u4eec\u5728\u89e3\u51b3\u5b9e\u9645\u95ee\u9898\u65f6\u63d0\u4f9b\u66f4\u591a\u7684\u7075\u6d3b\u6027\u548c\u9009\u62e9\u3002\u65e0\u8bba\u662f\u5728\u6570\u636e\u5206\u6790\u3001\u79d1\u5b66\u8ba1\u7b97\uff0c\u8fd8\u662f\u5728\u65e5\u5e38\u7684\u7f16\u7a0b\u4efb\u52a1\u4e2d\uff0c\u53d8\u91cf\u7684\u81ea\u52a8\u7d2f\u52a0\u90fd\u662f\u4e00\u4e2a\u57fa\u7840\u4e14\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u638c\u63e1\u8fd9\u4e9b\u6280\u5de7\u5c06\u5bf9\u4f60\u7684\u7f16\u7a0b\u80fd\u529b\u4ea7\u751f\u79ef\u6781\u7684\u5f71\u54cd\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u53d8\u91cf\u5728Python\u4e2d\u5982\u4f55\u5b9e\u73b0\u81ea\u52a8\u7d2f\u52a0\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5faa\u73af\u7ed3\u6784\u6216\u51fd\u6570\u6765\u5b9e\u73b0\u53d8\u91cf\u7684\u81ea\u52a8\u7d2f\u52a0\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528<code>for<\/code>\u5faa\u73af\u904d\u5386\u4e00\u4e2a\u6570\u5b57\u5e8f\u5217\uff0c\u5e76\u5728\u6bcf\u6b21\u8fed\u4ee3\u4e2d\u5c06\u5f53\u524d\u503c\u7d2f\u52a0\u5230\u4e00\u4e2a\u603b\u53d8\u91cf\u4e2d\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-python\">total = 0\nfor i in range(1, 11):  # \u4ece1\u523010\n    total += i  # \u5c06\u5f53\u524d\u503c\u7d2f\u52a0\u5230total\nprint(total)  # \u8f93\u51fa\u7ed3\u679c\u4e3a55\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u7b80\u5355\u660e\u4e86\uff0c\u9002\u7528\u4e8e\u57fa\u7840\u7684\u7d2f\u52a0\u9700\u6c42\u3002<\/p>\n<p><strong>\u662f\u5426\u53ef\u4ee5\u4f7f\u7528Python\u5185\u7f6e\u51fd\u6570\u6765\u5b9e\u73b0\u7d2f\u52a0\uff1f<\/strong><br \/>\u5f53\u7136\u53ef\u4ee5\uff01Python\u63d0\u4f9b\u4e86<code>sum()<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5bf9\u4e00\u4e2a\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff08\u5982\u5217\u8868\u3001\u5143\u7ec4\u7b49\uff09\u8fdb\u884c\u7d2f\u52a0\u3002\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-python\">numbers = [1, 2, 3, 4, 5]\ntotal = sum(numbers)  # \u76f4\u63a5\u5bf9\u5217\u8868\u4e2d\u7684\u6570\u5b57\u8fdb\u884c\u7d2f\u52a0\nprint(total)  # \u8f93\u51fa\u7ed3\u679c\u4e3a15\n<\/code><\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u7b80\u6d01\uff0c\u800c\u4e14\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\uff0c\u6027\u80fd\u4e5f\u8f83\u4e3a\u4f18\u8d8a\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u5b9e\u73b0\u6761\u4ef6\u7d2f\u52a0\uff1f<\/strong><br \/>\u5982\u679c\u9700\u8981\u6839\u636e\u67d0\u4e9b\u6761\u4ef6\u8fdb\u884c\u7d2f\u52a0\uff0c\u53ef\u4ee5\u5728\u5faa\u73af\u4e2d\u6dfb\u52a0\u6761\u4ef6\u5224\u65ad\u3002\u4f8b\u5982\uff0c\u60f3\u8981\u7d2f\u52a0\u6240\u6709\u5076\u6570\u7684\u548c\uff0c\u53ef\u4ee5\u8fd9\u6837\u5b9e\u73b0\uff1a<\/p>\n<pre><code class=\"language-python\">total = 0\nfor i in range(1, 11):\n    if i % 2 == 0:  # \u5224\u65ad\u662f\u5426\u4e3a\u5076\u6570\n        total += i  # \u4ec5\u5bf9\u5076\u6570\u8fdb\u884c\u7d2f\u52a0\nprint(total)  # \u8f93\u51fa\u7ed3\u679c\u4e3a30\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u7075\u6d3b\u5730\u63a7\u5236\u7d2f\u52a0\u7684\u6761\u4ef6\uff0c\u6ee1\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53d8\u91cf\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\u81ea\u52a8\u7d2f\u52a0\uff0c\u5176\u4e2d\u5305\u62ec\u4f7f\u7528\u7b80\u5355\u7684\u5faa\u73af\u7ed3\u6784\u3001itertools\u6a21\u5757\u548c\u751f\u6210\u5668 [&hellip;]","protected":false},"author":3,"featured_media":968578,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/968571"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=968571"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/968571\/revisions"}],"predecessor-version":[{"id":968581,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/968571\/revisions\/968581"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/968578"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=968571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=968571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=968571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}