{"id":204416,"date":"2025-05-29T10:34:13","date_gmt":"2025-05-29T02:34:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204416\/"},"modified":"2025-05-29T10:34:13","modified_gmt":"2025-05-29T02:34:13","slug":"%e5%a4%9a%e8%bf%9b%e7%a8%8b-for-%e5%be%aa%e7%8e%af%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bf%9d%e8%af%81%e6%89%80%e6%9c%89%e5%ad%90%e8%bf%9b%e7%a8%8b%e5%ae%8c%e6%88%90%e5%86%8d%e6%89%a7%e8%a1%8c%e4%b8%bb","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204416\/","title":{"rendered":"\u591a\u8fdb\u7a0b for \u5faa\u73af\u4e2d\u5982\u4f55\u4fdd\u8bc1\u6240\u6709\u5b50\u8fdb\u7a0b\u5b8c\u6210\u518d\u6267\u884c\u4e3b\u8fdb\u7a0b\u4ee3\u7801\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u591a\u8fdb\u7a0b for \u5faa\u73af\u4e2d\u5982\u4f55\u4fdd\u8bc1\u6240\u6709\u5b50\u8fdb\u7a0b\u5b8c\u6210\u518d\u6267\u884c\u4e3b\u8fdb\u7a0b\u4ee3\u7801\uff1f<\/h1>\n

\u6587\u7ae0\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300a\u591a\u8fdb\u7a0b for \u5faa\u73af\u4e2d\u5982\u4f55\u4fdd\u8bc1\u6240\u6709\u5b50\u8fdb\u7a0b\u5b8c\u6210\u518d\u6267\u884c\u4e3b\u8fdb\u7a0b\u4ee3\u7801\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

<\/p>\n

<\/p>\n

\u591a\u8fdb\u7a0b\u4e2d\u7684 for \u5faa\u73af join \u673a\u5236<\/strong><\/p>\n

python\u7684\u591a\u8fdb\u7a0b\u4e2d\u63d0\u4f9b\u4e86 join \u65b9\u6cd5\u6765\u7b49\u5f85\u5b50\u8fdb\u7a0b\u5b8c\u6210\u3002\u5728 for \u5faa\u73af\u4e2d join \u8fdb\u7a0b\u65f6\uff0c\u5b58\u5728\u4e00\u79cd\u60c5\u51b5\uff0c\u5373\u5f53\u5faa\u73af\u5230\u7b2c n \u4e2a\u8fdb\u7a0b\u65f6\uff0c\u5982\u679c\u7b2c n \u4e2a\u8fdb\u7a0b\u5df2\u7ecf\u6267\u884c\u5b8c\u6bd5\uff0c\u90a3\u4e48\u6b64\u65f6\u53ef\u80fd\u6253\u5370\u51fa\u4e3b\u8fdb\u7a0b\u7ed3\u675f\u7684\u8bed\u53e5\uff0c\u800c\u4e0d\u662f\u7ee7\u7eed\u7b49\u5f85\u5269\u4f59\u8fdb\u7a0b\u5b8c\u6210\u3002<\/p>\n

\u89e3\u51b3\u65b9\u6cd5<\/strong><\/p>\n

\u8fd9\u4e2a\u95ee\u9898\u4ea7\u751f\u4e8e for \u5faa\u73af\u7684\u975e\u963b\u585e\u7279\u6027\u3002\u5f53 start \u65b9\u6cd5\u8c03\u7528\u65f6\uff0c\u5b50\u8fdb\u7a0b\u5e76\u6ca1\u6709\u88ab\u8fd0\u884c\uff0c\u800c\u662f\u521b\u5efa\u4e86\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u5bf9\u8c61\u3002\u968f\u540e for \u5faa\u73af\u4f1a\u6301\u7eed\u6267\u884c\uff0c\u5faa\u73af\u5230\u7b2c n \u4e2a\u8fdb\u7a0b\u65f6\uff0c\u7b2c n \u4e2a\u8fdb\u7a0b\u53ef\u80fd\u5df2\u7ecf\u6267\u884c\u5b8c\u6bd5\uff0c\u4f46\u6b64\u65f6\u5c1a\u672a\u6267\u884c join\uff0c\u6240\u4ee5 join \u65b9\u6cd5\u5e76\u4e0d\u4f1a\u963b\u585e\u3002\u5982\u679c\u5728 for \u5faa\u73af\u5185\u6253\u5370\u4e3b\u8fdb\u7a0b\u7ed3\u675f\u7684\u8bed\u53e5\uff0c\u5219\u53ef\u80fd\u4f1a\u6267\u884c\u8be5\u8bed\u53e5\uff0c\u800c\u4e0d\u4f1a\u7b49\u5f85\u5269\u4f59\u8fdb\u7a0b\u5b8c\u6210\u3002<\/p>\n

\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u7684\u65b9\u6cd5\u662f\uff0c\u5728 for \u5faa\u73af\u5185\u7acb\u5373\u6267\u884c join \u65b9\u6cd5\uff0c\u786e\u4fdd\u5728\u5faa\u73af\u5230\u7b2c n \u4e2a\u8fdb\u7a0b\u65f6\uff0c\u8be5\u8fdb\u7a0b\u5df2\u7ecf\u5b8c\u6210\u6267\u884c\uff0c\u7136\u540e\u624d\u6267\u884c\u4e3b\u8fdb\u7a0b\u7684\u540e\u7eed\u4ee3\u7801\u3002\u4fee\u6539\u540e\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

import os\nfrom multiprocessing import Process\n\ndef func(num):\n    print('in func', num, os.getpid(), os.getppid())\n\nif __name__ == '__main__':\n    print('in main', os.getpid(), os.getppid())\n    p_l = []\n    for i in range(10):\n        p = Process(target=func, args=(i,))\n        p.start()\n        p_l.append(p)\n    for p in p_l:\n        p.join()\n    print('\u4e3b\u8fdb\u7a0b \u7684 \u4ee3\u7801\u6267\u884c\u7ed3\u675f\u4e86')<\/pre>\n
\u5728\u4fee\u6539\u540e\u7684\u4ee3\u7801\u4e2d\uff0cfor \u5faa\u73af\u5185\u7acb\u5373\u6267\u884c join\uff0c\u786e\u4fdd\u5728\u5faa\u73af\u5230\u7b2c n \u4e2a\u8fdb\u7a0b\u65f6\uff0c\u8be5\u8fdb\u7a0b\u5df2\u7ecf\u5b8c\u6210\u6267\u884c\uff0c\u518d\u6267\u884c\u4e3b\u8fdb\u7a0b\u7684\u540e\u7eed\u4ee3\u7801\u3002\u56e0\u6b64\uff0c\u5c06\u4e0d\u4f1a\u6253\u5370\u4e3b\u8fdb\u7a0b\u7ed3\u675f\u7684\u8bed\u53e5\uff0c\u800c\u662f\u7b49\u5f85\u6240\u6709\u8fdb\u7a0b\u6267\u884c\u5b8c\u6bd5\u540e\u518d\u6253\u5370\u3002<\/p>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300a\u591a\u8fdb\u7a0b for \u5faa\u73af\u4e2d\u5982\u4f55\u4fdd\u8bc1\u6240\u6709\u5b50\u8fdb\u7a0b\u5b8c\u6210\u518d\u6267\u884c\u4e3b\u8fdb\u7a0b\u4ee3\u7801\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u591a\u8fdb\u7a0b for \u5faa\u73af\u4e2d\u5982\u4f55\u4fdd\u8bc1\u6240...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204416","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204416","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204416"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204416\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}