{"id":261948,"date":"2023-02-23T09:48:18","date_gmt":"2023-02-23T01:48:18","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=261948"},"modified":"2023-01-19T11:50:04","modified_gmt":"2023-01-19T03:50:04","slug":"improving-python-operation","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/improving-python-operation.html","title":{"rendered":"\u63d0\u9ad8Python\u8fd0\u884c\u6548\u7387\u76845\u4e2a\u6280\u5de7"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>\u4e0e\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u76f8\u6bd4\uff0cPython\u6700\u5927\u7684\u7279\u70b9\u5c31\u662f\u80fd\u591f\u8ba9\u4f60\u5728\u77ed\u65f6\u95f4\u5185\u7528\u6781\u5c11\u7684\u4ee3\u7801\uff0c\u5b9e\u73b0\u5927\u91cf\u7684\u64cd\u4f5c\uff0c\u6bd4\u5982\uff1aJava\u7f16\u5199\u4e00\u4e2a\u7a0b\u5e8f\u9700\u8981\u767e\u884c\u4ee3\u7801\uff0c\u800cPython\u53ea\u9700\u8981\u5341\u51e0\u884c\u5c31\u80fd\u641e\u5b9a\u3002\u672c\u7bc7\u6587\u7ae0\u4e3a\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0b\u63d0\u9ad8Python\u8fd0\u884c\u6548\u7387\u76845\u4e2a\u6280\u5de7\uff0c\u4e00\u8d77\u6765\u5b66\u4e60\u4e00\u4e0b\u5427\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u591a\u8fdb\u7a0b\u5e76\u884c\u7f16\u7a0b<\/strong><\/div>\n<p>\u5bf9\u4e8eCPU\u5bc6\u96c6\u578b\u7684\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528multiProcessing\u7684Process\uff0cPool\u7b49\u5c01\u88c5\u597d\u7684\u7c7b\uff0c\u901a\u8fc7\u591a\u8fdb\u7a0b\u7684\u65b9\u5f0f\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\u3002\u4f46\u662f\u56e0\u4e3a\u8fdb\u7a0b\u4e2d\u7684\u901a\u4fe1\u6210\u672c\u6bd4\u8f83\u5927\uff0c\u5bf9\u4e8e\u8fdb\u7a0b\u4e4b\u95f4\u9700\u8981\u5927\u91cf\u6570\u636e\u4ea4\u4e92\u7684\u7a0b\u5e8f\u6548\u7387\u672a\u5fc5\u6709\u5927\u7684\u63d0\u9ad8\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u591a\u7ebf\u7a0b\u5e76\u884c\u7f16\u7a0b<\/strong><\/div>\n<p>\u5bf9\u4e8eIO\u5bc6\u96c6\u578b\u7684\u7a0b\u5e8f\uff0cmultiprocessing.dummy\u6a21\u5757\u4f7f\u7528multiprocessing\u7684\u63a5\u53e3\u5c01\u88c5threading\uff0c\u4f7f\u5f97\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e5f\u53d8\u5f97\u975e\u5e38\u8f7b\u677e\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u4f18\u5316\u7b97\u6cd5\u65f6\u95f4<\/strong><\/div>\n<p>\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u5bf9\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u5f71\u54cd\u6700\u5927\uff0c\u5728Python\u4e2d\u53ef\u4ee5\u901a\u8fc7\u9009\u62e9\u5408\u9002\u7684\u6570\u636e\u7ed3\u6784\u6765\u4f18\u5316\u65f6\u95f4\u590d\u6742\u5ea6\uff0c\u5982list\u548cset\u67e5\u627e\u67d0\u4e00\u4e2a\u5143\u7d20\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u5206\u522b\u662fO(n)\u548cO(1)\u3002\u4e0d\u540c\u7684\u573a\u666f\u6709\u4e0d\u540c\u7684\u4f18\u5316\u65b9\u5f0f\uff0c\u603b\u5f97\u6765\u8bf4\uff0c\u4e00\u822c\u6709\u5206\u6cbb\uff0c\u5206\u652f\u754c\u9650\uff0c\u8d2a\u5fc3\uff0c\u52a8\u6001\u89c4\u5212\u7b49\u601d\u60f3\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u9488\u5bf9\u5faa\u73af\u7684\u4f18\u5316<\/strong><\/div>\n<p>\u6bcf\u79cd\u7f16\u7a0b\u8bed\u8a00\u90fd\u4f1a\u5f3a\u8c03\u9700\u8981\u4f18\u5316\u5faa\u73af\u3002\u5f53\u4f7f\u7528Python\u7684\u65f6\u5019\uff0c\u4f60\u53ef\u4ee5\u4f9d\u9760\u5927\u91cf\u7684\u6280\u5de7\u4f7f\u5f97\u5faa\u73af\u8fd0\u884c\u5f97\u66f4\u5feb\u3002\u7136\u800c\uff0c\u5f00\u53d1\u8005\u7ecf\u5e38\u6f0f\u6389\u7684\u4e00\u4e2a\u65b9\u6cd5\u662f\uff1a\u907f\u514d\u5728\u4e00\u4e2a\u5faa\u73af\u4e2d\u4f7f\u7528\u70b9\u64cd\u4f5c\u3002\u4f18\u5316\u5faa\u73af\u7684\u5173\u952e\uff0c\u662f\u8981\u51cf\u5c11Python\u5728\u5faa\u73af\u5185\u90e8\u6267\u884c\u7684\u5de5\u4f5c\u91cf\uff0c\u56e0\u4e3aPython\u539f\u751f\u7684\u89e3\u91ca\u5668\u5728\u90a3\u79cd\u60c5\u51b5\u4e0b\uff0c\u771f\u7684\u4f1a\u51cf\u7f13\u6267\u884c\u7684\u901f\u5ea6\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>\u51fd\u6570\u9009\u62e9<\/strong><\/div>\n<p>\u5728\u5faa\u73af\u7684\u65f6\u5019\u4f7f\u7528xrange\u800c\u4e0d\u662frange;\u4f7f\u7528xrange\u53ef\u4ee5\u8282\u7701\u5927\u91cf\u7684\u7cfb\u7edf\u5185\u5b58\uff0c\u56e0\u4e3axrange()\u5728\u5e8f\u5217\u4e2d\u6bcf\u6b21\u8c03\u7528\u53ea\u4ea7\u751f\u4e00\u4e2a\u6574\u6570\u5143\u7d20\u3002\u800crange()\u5c06\u76f4\u63a5\u8fd4\u56de\u5b8c\u6574\u7684\u5143\u7d20\u5217\u8868\uff0c\u7528\u4e8e\u5faa\u73af\u65f6\u4f1a\u6709\u4e0d\u5fc5\u8981\u7684\u5f00\u9500\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5bf9\u4e8eCPU\u5bc6\u96c6\u578b\u7684\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u4f7f\u7528multiProcessing\u7684Process\uff0cPool\u7b49\u5c01\u88c5\u597d\u7684\u7c7b\uff0c\u901a\u8fc7\u591a\u8fdb [&hellip;]<\/p>\n","protected":false},"author":1903,"featured_media":262249,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-261948","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/261948","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/1903"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=261948"}],"version-history":[{"count":2,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/261948\/revisions"}],"predecessor-version":[{"id":261953,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/261948\/revisions\/261953"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/262249"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=261948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=261948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=261948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}