{"id":204508,"date":"2025-05-29T11:05:10","date_gmt":"2025-05-29T03:05:10","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204508\/"},"modified":"2025-05-29T11:05:10","modified_gmt":"2025-05-29T03:05:10","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e8%bf%9b%e7%a8%8b%e6%b1%a0%e4%b8%ad%e8%ae%a9%e5%ad%90%e8%bf%9b%e7%a8%8b%e5%88%9b%e5%bb%ba%e6%96%b0%e7%9a%84%e5%ad%90%e8%bf%9b%e7%a8%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204508\/","title":{"rendered":"\u5982\u4f55\u5728\u8fdb\u7a0b\u6c60\u4e2d\u8ba9\u5b50\u8fdb\u7a0b\u521b\u5efa\u65b0\u7684\u5b50\u8fdb\u7a0b\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u5982\u4f55\u5728\u8fdb\u7a0b\u6c60\u4e2d\u8ba9\u5b50\u8fdb\u7a0b\u521b\u5efa\u65b0\u7684\u5b50\u8fdb\u7a0b\uff1f<\/h1>\n<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241109\/1731136911672f0d8f6140a.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u8fdb\u7a0b\u6c60\u4e2d\u521b\u5efa\u5b50\u8fdb\u7a0b\u7684\u96be\u9898<\/strong><\/p>\n<p>\u5f53\u6709\u591a\u4e2a\u4efb\u52a1\u9700\u8981\u5e76\u884c\u6267\u884c\u65f6\uff0c\u8fdb\u7a0b\u6c60\u65e0\u7591\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\u3002\u7136\u800c\uff0c\u6709\u65f6\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u5b50\u8fdb\u7a0b\u672c\u8eab\u521b\u5efa\u66f4\u591a\u7684\u5b50\u8fdb\u7a0b\u3002\u8fd9\u4e2a\u770b\u4f3c\u7b80\u5355\u7684\u8981\u6c42\u5728\u8fdb\u7a0b\u6c60\u4e2d\u5374\u5e26\u6765\u4e86\u6311\u6218\uff0c\u56e0\u4e3a\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8fdb\u7a0b\u6c60\u4e2d\u7684\u5b50\u8fdb\u7a0b\u65e0\u6cd5\u521b\u5efa\u65b0\u7684\u5b50\u8fdb\u7a0b\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6cd5\uff1a\u4f7f\u7528\u5b9a\u5236\u7684manager<\/strong><\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5b9a\u5236\u7684manager\u7c7b\uff0c\u8be5\u7c7b\u5c06\u5141\u8bb8\u5b50\u8fdb\u7a0b\u521b\u5efa\u5176\u4ed6\u5b50\u8fdb\u7a0b\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n<pre>import multiprocessing\nimport os\n\nclass CustomManager(multiprocessing.Manager):\n    def __init__(self):\n        super().__init__()\n        self.lock = self.Lock()\n        self.process_count = 0\n\n    def create_process(self, target, args=(), kwargs={}):\n        self.lock.acquire()\n        # \u8bb0\u5f55\u5f53\u524d\u5df2\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\u6570\n        self.process_count += 1\n        # \u521b\u5efa\u5b50\u8fdb\u7a0b\n        p = self.Process(target=target, args=args, kwargs=kwargs)\n        p.start()\n        # \u91ca\u653e\u9501\n        self.lock.release()\n\n        return p\n\nif __name__ == '__main__':\n    # \u521b\u5efa\u5b9a\u5236\u7684Manager\n    manager = CustomManager()\n\n    # \u5c06\u5b9a\u5236\u7684Manager\u4f20\u9012\u7ed9\u8fdb\u7a0b\u6c60\n    pool = multiprocessing.Pool(processes=10, manager=manager)\n\n    # \u5728\u5b50\u8fdb\u7a0b\u4e2d\u521b\u5efa\u65b0\u7684\u5b50\u8fdb\u7a0b\n    def create_new_process(msg):\n        # \u83b7\u53d6\u5b9a\u5236\u7684Manager\n        manager = multiprocessing.current_process().manager\n\n        # \u521b\u5efa\u65b0\u5b50\u8fdb\u7a0b\n        p = manager.create_process(os.system, args=(\"echo {}\".format(msg),))\n        # \u7b49\u5f85\u65b0\u5b50\u8fdb\u7a0b\u7ed3\u675f\n        p.join()\n\n    # \u5c06\u4efb\u52a1\u6dfb\u52a0\u5230\u8fdb\u7a0b\u6c60\n    for i in range(20):\n        pool.apply_async(func=create_new_process, args=(str(i),))\n\n    # \u5173\u95ed\u8fdb\u7a0b\u6c60\n    pool.close()\n    pool.join()\n\n    # \u8f93\u51fa\u521b\u5efa\u5b50\u8fdb\u7a0b\u7684\u603b\u6570\n    print('Total sub-processes created:', manager.process_count)<\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528\u5b9a\u5236\u7684manager\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u8fdb\u7a0b\u6c60\u4e2d\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0c\u5e76\u4f7f\u5b50\u8fdb\u7a0b\u80fd\u591f\u521b\u5efa\u81ea\u5df1\u7684\u5b50\u8fdb\u7a0b\u3002\u8fd9\u4e3a\u5904\u7406\u590d\u6742\u7684\u5de5\u4f5c\u8d1f\u8f7d\u63d0\u4f9b\u4e86\u66f4\u5927\u7684\u7075\u6d3b\u6027\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300a\u5982\u4f55\u5728\u8fdb\u7a0b\u6c60\u4e2d\u8ba9\u5b50\u8fdb\u7a0b\u521b\u5efa\u65b0\u7684\u5b50\u8fdb\u7a0b\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u5728\u8fdb\u7a0b\u6c60\u4e2d\u8ba9\u5b50\u8fdb\u7a0b\u521b\u5efa\u65b0\u7684\u5b50&#46;&#46;&#46;<\/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-204508","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204508","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=204508"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204508\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}