{"id":2914,"date":"2024-12-01T22:06:15","date_gmt":"2024-12-01T14:06:15","guid":{"rendered":"http:\/\/viplao.com\/?p=2914"},"modified":"2024-12-01T22:06:24","modified_gmt":"2024-12-01T14:06:24","slug":"python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5","status":"publish","type":"post","link":"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/","title":{"rendered":"PYTHON\u57fa\u7840\u6280\u80fd \u2013\u00a0Python\u8fdb\u7a0b\u7ba1\u7406\u768415\u5927\u5b9e\u6218\u7b56\u7565"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u6587\u7ae0\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 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href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#2_%E4%BD%BF%E7%94%A8multiprocessing%E6%A8%A1%E5%9D%97%E5%88%9B%E5%BB%BA%E5%AD%90%E8%BF%9B%E7%A8%8B\" title=\"2. \u4f7f\u7528multiprocessing\u6a21\u5757\u521b\u5efa\u5b50\u8fdb\u7a0b\">2. \u4f7f\u7528multiprocessing\u6a21\u5757\u521b\u5efa\u5b50\u8fdb\u7a0b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#3_%E8%BF%9B%E7%A8%8B%E6%B1%A0%E7%AE%A1%E7%90%86\" title=\"3. \u8fdb\u7a0b\u6c60\u7ba1\u7406\">3. \u8fdb\u7a0b\u6c60\u7ba1\u7406<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#4_%E8%BF%9B%E7%A8%8B%E9%97%B4%E9%80%9A%E4%BF%A1%EF%BC%9A%E9%98%9F%E5%88%97\" title=\"4. \u8fdb\u7a0b\u95f4\u901a\u4fe1\uff1a\u961f\u5217\">4. \u8fdb\u7a0b\u95f4\u901a\u4fe1\uff1a\u961f\u5217<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#5_%E9%94%81%E4%B8%8E%E5%90%8C%E6%AD%A5\" title=\"5. \u9501\u4e0e\u540c\u6b65\">5. \u9501\u4e0e\u540c\u6b65<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#6_%E7%AE%A1%E9%81%93%E9%80%9A%E4%BF%A1\" title=\"6. \u7ba1\u9053\u901a\u4fe1\">6. \u7ba1\u9053\u901a\u4fe1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#7_%E4%BD%BF%E7%94%A8subprocess%E6%A8%A1%E5%9D%97\" title=\"7. \u4f7f\u7528subprocess\u6a21\u5757\">7. \u4f7f\u7528subprocess\u6a21\u5757<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#8_%E8%BF%9B%E7%A8%8B%E7%9B%91%E6%8E%A7%E4%B8%8E%E7%AE%A1%E7%90%86\" title=\"8. \u8fdb\u7a0b\u76d1\u63a7\u4e0e\u7ba1\u7406\">8. \u8fdb\u7a0b\u76d1\u63a7\u4e0e\u7ba1\u7406<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#9_%E8%BF%9B%E7%A8%8B%E4%BC%98%E5%85%88%E7%BA%A7%E8%B0%83%E6%95%B4\" title=\"9. \u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574\">9. \u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#10_%E5%BC%82%E5%B8%B8%E5%A4%84%E7%90%86%E4%B8%8E%E6%97%A5%E5%BF%97%E8%AE%B0%E5%BD%95\" title=\"10. \u5f02\u5e38\u5904\u7406\u4e0e\u65e5\u5fd7\u8bb0\u5f55\">10. \u5f02\u5e38\u5904\u7406\u4e0e\u65e5\u5fd7\u8bb0\u5f55<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#11_%E5%B9%B6%E5%8F%91%E6%A8%A1%E5%9E%8B%E7%9A%84%E9%80%89%E6%8B%A9%EF%BC%9A%E8%BF%9B%E7%A8%8B_vs_%E7%BA%BF%E7%A8%8B_vs_%E5%8D%8F%E7%A8%8B\" title=\"11. \u5e76\u53d1\u6a21\u578b\u7684\u9009\u62e9\uff1a\u8fdb\u7a0b vs. \u7ebf\u7a0b vs. \u534f\u7a0b\">11. \u5e76\u53d1\u6a21\u578b\u7684\u9009\u62e9\uff1a\u8fdb\u7a0b vs. \u7ebf\u7a0b vs. \u534f\u7a0b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#12_%E5%88%A9%E7%94%A8concurrentfutures%E7%AE%80%E5%8C%96%E5%A4%9A%E8%BF%9B%E7%A8%8B%E7%BC%96%E7%A8%8B\" title=\"12. \u5229\u7528concurrent.futures\u7b80\u5316\u591a\u8fdb\u7a0b\u7f16\u7a0b\">12. \u5229\u7528concurrent.futures\u7b80\u5316\u591a\u8fdb\u7a0b\u7f16\u7a0b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#13_%E8%BF%9B%E7%A8%8B%E6%AD%BB%E9%94%81%E7%9A%84%E9%A2%84%E9%98%B2%E4%B8%8E%E8%A7%A3%E5%86%B3\" title=\"13. \u8fdb\u7a0b\u6b7b\u9501\u7684\u9884\u9632\u4e0e\u89e3\u51b3\">13. \u8fdb\u7a0b\u6b7b\u9501\u7684\u9884\u9632\u4e0e\u89e3\u51b3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#14_%E8%B5%84%E6%BA%90%E7%AE%A1%E7%90%86%E4%B8%8E%E4%B8%8A%E4%B8%8B%E6%96%87%E7%AE%A1%E7%90%86%E5%99%A8\" title=\"14. \u8d44\u6e90\u7ba1\u7406\u4e0e\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\">14. \u8d44\u6e90\u7ba1\u7406\u4e0e\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/#15_%E8%BF%9B%E7%A8%8B%E5%AE%89%E5%85%A8%E7%9A%84%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84\" title=\"15. \u8fdb\u7a0b\u5b89\u5168\u7684\u6570\u636e\u7ed3\u6784\">15. \u8fdb\u7a0b\u5b89\u5168\u7684\u6570\u636e\u7ed3\u6784<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_%E7%90%86%E8%A7%A3%E8%BF%9B%E7%A8%8B%E4%B8%8E%E5%A4%9A%E8%BF%9B%E7%A8%8B\"><\/span><strong>1. \u7406\u89e3\u8fdb\u7a0b\u4e0e\u591a\u8fdb\u7a0b<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u8d44\u6e90\u5206\u914d\u7684\u57fa\u672c\u5355\u4f4d\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u6709\u72ec\u7acb\u7684\u5185\u5b58\u7a7a\u95f4\u3002<\/li>\n\n\n\n<li>\u591a\u8fdb\u7a0b\u5141\u8bb8\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u8fdb\u7a0b\uff0c\u63d0\u9ad8CPU\u5229\u7528\u7387\u548c\u7a0b\u5e8f\u54cd\u5e94\u901f\u5ea6\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import&nbsp;os<br>print(\"\u5f53\u524d\u8fdb\u7a0bID:\",&nbsp;os.getpid())<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_%E4%BD%BF%E7%94%A8multiprocessing%E6%A8%A1%E5%9D%97%E5%88%9B%E5%BB%BA%E5%AD%90%E8%BF%9B%E7%A8%8B\"><\/span><strong>2. \u4f7f\u7528<code>multiprocessing<\/code>\u6a21\u5757\u521b\u5efa\u5b50\u8fdb\u7a0b<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li><code>multiprocessing<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u521b\u5efa\u548c\u7ba1\u7406\u5b50\u8fdb\u7a0b\u7684\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from&nbsp;multiprocessing&nbsp;import&nbsp;Process<br>import&nbsp;time<br><br>def&nbsp;worker():<br>&nbsp;&nbsp;&nbsp;&nbsp;print(\"Worker&nbsp;\u8fdb\u7a0bID:\",&nbsp;os.getpid())<br>&nbsp;&nbsp;&nbsp;&nbsp;time.sleep(1)<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;p&nbsp;=&nbsp;Process(target=worker)<br>&nbsp;&nbsp;&nbsp;&nbsp;p.start()<br>&nbsp;&nbsp;&nbsp;&nbsp;p.join()&nbsp;&nbsp;<em>#&nbsp;\u7b49\u5f85\u5b50\u8fdb\u7a0b\u7ed3\u675f<\/em><\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_%E8%BF%9B%E7%A8%8B%E6%B1%A0%E7%AE%A1%E7%90%86\"><\/span><strong>3. \u8fdb\u7a0b\u6c60\u7ba1\u7406<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u8fdb\u7a0b\u6c60\u53ef\u4ee5\u63a7\u5236\u5e76\u53d1\u6267\u884c\u7684\u8fdb\u7a0b\u6570\u91cf\uff0c\u63d0\u9ad8\u6548\u7387\u548c\u8d44\u6e90\u5229\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from&nbsp;multiprocessing&nbsp;import&nbsp;Pool<br><br>def&nbsp;square(x):<br>&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;x&nbsp;*&nbsp;x<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;with&nbsp;Pool(4)&nbsp;as&nbsp;p:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;result&nbsp;=&nbsp;p.map(square,&nbsp;range(10))<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print(result)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_%E8%BF%9B%E7%A8%8B%E9%97%B4%E9%80%9A%E4%BF%A1%EF%BC%9A%E9%98%9F%E5%88%97\"><\/span><strong>4. \u8fdb\u7a0b\u95f4\u901a\u4fe1\uff1a\u961f\u5217<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u961f\u5217\u662f\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u5b89\u5168\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5b9e\u73b0\u6570\u636e\u7684\u65e0\u9501\u4ea4\u6362\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from&nbsp;multiprocessing&nbsp;import&nbsp;Queue,&nbsp;Process<br><br>def&nbsp;writer(q):<br>&nbsp;&nbsp;&nbsp;&nbsp;q.put('Hello')<br><br>def&nbsp;reader(q):<br>&nbsp;&nbsp;&nbsp;&nbsp;print(q.get())<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;q&nbsp;=&nbsp;Queue()<br>&nbsp;&nbsp;&nbsp;&nbsp;pw&nbsp;=&nbsp;Process(target=writer,&nbsp;args=(q,))<br>&nbsp;&nbsp;&nbsp;&nbsp;pr&nbsp;=&nbsp;Process(target=reader,&nbsp;args=(q,))<br>&nbsp;&nbsp;&nbsp;&nbsp;pw.start()<br>&nbsp;&nbsp;&nbsp;&nbsp;pr.start()<br>&nbsp;&nbsp;&nbsp;&nbsp;pw.join()<br>&nbsp;&nbsp;&nbsp;&nbsp;pr.join()<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_%E9%94%81%E4%B8%8E%E5%90%8C%E6%AD%A5\"><\/span><strong>5. \u9501\u4e0e\u540c\u6b65<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u5728\u591a\u8fdb\u7a0b\u4e2d\u5171\u4eab\u8d44\u6e90\u65f6\uff0c\u4f7f\u7528\u9501\u53ef\u4ee5\u907f\u514d\u7ade\u4e89\u6761\u4ef6\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from&nbsp;multiprocessing&nbsp;import&nbsp;Lock,&nbsp;Process<br><br>lock&nbsp;=&nbsp;Lock()<br><br>def&nbsp;increment(counter):<br>&nbsp;&nbsp;&nbsp;&nbsp;lock.acquire()<br>&nbsp;&nbsp;&nbsp;&nbsp;try:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;counter&nbsp;+=&nbsp;1<br>&nbsp;&nbsp;&nbsp;&nbsp;finally:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;lock.release()<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;counter&nbsp;=&nbsp;0<br>&nbsp;&nbsp;&nbsp;&nbsp;processes&nbsp;=&nbsp;&#91;Process(target=increment,&nbsp;args=(counter,))&nbsp;for&nbsp;_&nbsp;in&nbsp;range(10)]<br>&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;p&nbsp;in&nbsp;processes:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;p.start()<br>&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;p&nbsp;in&nbsp;processes:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;p.join()<br>&nbsp;&nbsp;&nbsp;&nbsp;print(\"Final&nbsp;counter:\",&nbsp;counter)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_%E7%AE%A1%E9%81%93%E9%80%9A%E4%BF%A1\"><\/span><strong>6. \u7ba1\u9053\u901a\u4fe1<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u7ba1\u9053\u63d0\u4f9b\u4e86\u4e00\u79cd\u53cc\u5411\u901a\u4fe1\u673a\u5236\uff0c\u9002\u5408\u7b80\u5355\u7684\u6570\u636e\u4f20\u9012\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from&nbsp;multiprocessing&nbsp;import&nbsp;Pipe,&nbsp;Process<br><br>def&nbsp;send(pipe):<br>&nbsp;&nbsp;&nbsp;&nbsp;pipe.send('Hello')<br>&nbsp;&nbsp;&nbsp;&nbsp;pipe.close()<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;parent_conn,&nbsp;child_conn&nbsp;=&nbsp;Pipe()<br>&nbsp;&nbsp;&nbsp;&nbsp;p&nbsp;=&nbsp;Process(target=send,&nbsp;args=(child_conn,))<br>&nbsp;&nbsp;&nbsp;&nbsp;p.start()<br>&nbsp;&nbsp;&nbsp;&nbsp;print(parent_conn.recv())&nbsp;&nbsp;&nbsp;<em>#&nbsp;prints&nbsp;\"Hello\"<\/em><br>&nbsp;&nbsp;&nbsp;&nbsp;p.join()<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_%E4%BD%BF%E7%94%A8subprocess%E6%A8%A1%E5%9D%97\"><\/span><strong>7. \u4f7f\u7528<code>subprocess<\/code>\u6a21\u5757<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li><code>subprocess<\/code>\u6a21\u5757\u7528\u4e8e\u521b\u5efa\u65b0\u8fdb\u7a0b\uff0c\u6267\u884c\u7cfb\u7edf\u547d\u4ee4\u6216\u7a0b\u5e8f\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import&nbsp;subprocess<br><br>proc&nbsp;=&nbsp;subprocess.Popen(&#91;'echo',&nbsp;'Hello&nbsp;from&nbsp;the&nbsp;child!'],&nbsp;stdout=subprocess.PIPE)<br>out,&nbsp;err&nbsp;=&nbsp;proc.communicate()<br>print(out.decode('utf-8'))<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_%E8%BF%9B%E7%A8%8B%E7%9B%91%E6%8E%A7%E4%B8%8E%E7%AE%A1%E7%90%86\"><\/span><strong>8. \u8fdb\u7a0b\u76d1\u63a7\u4e0e\u7ba1\u7406<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u5229\u7528<code>psutil<\/code>\u5e93\u53ef\u4ee5\u83b7\u53d6\u548c\u7ba1\u7406\u8fdb\u7a0b\u4fe1\u606f\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import&nbsp;psutil<br><br><em>#&nbsp;\u6253\u5370\u6240\u6709\u8fd0\u884c\u4e2d\u7684\u8fdb\u7a0b<\/em><br>for&nbsp;proc&nbsp;in&nbsp;psutil.process_iter(&#91;'pid',&nbsp;'name']):<br>&nbsp;&nbsp;&nbsp;&nbsp;print(proc.info)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_%E8%BF%9B%E7%A8%8B%E4%BC%98%E5%85%88%E7%BA%A7%E8%B0%83%E6%95%B4\"><\/span><strong>9. \u8fdb\u7a0b\u4f18\u5148\u7ea7\u8c03\u6574<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u53ef\u4ee5\u8c03\u6574\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\uff0c\u5f71\u54cd\u5176CPU\u4f7f\u7528\u7387\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import&nbsp;os<br><br>os.nice(10)&nbsp;&nbsp;<em>#&nbsp;\u8bbe\u7f6e\u8fdb\u7a0b\u4f18\u5148\u7ea7\u4e3a10\uff08\u8f83\u4f4e\uff09<\/em><\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_%E5%BC%82%E5%B8%B8%E5%A4%84%E7%90%86%E4%B8%8E%E6%97%A5%E5%BF%97%E8%AE%B0%E5%BD%95\"><\/span><strong>10. \u5f02\u5e38\u5904\u7406\u4e0e\u65e5\u5fd7\u8bb0\u5f55<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u5728\u591a\u8fdb\u7a0b\u73af\u5883\u4e2d\uff0c\u5f02\u5e38\u5904\u7406\u548c\u65e5\u5fd7\u8bb0\u5f55\u5bf9\u4e8e\u8c03\u8bd5\u548c\u7ef4\u62a4\u81f3\u5173\u91cd\u8981\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import&nbsp;logging<br>from&nbsp;multiprocessing&nbsp;import&nbsp;Process<br><br>logging.basicConfig(level=logging.INFO)<br><br>def&nbsp;worker():<br>&nbsp;&nbsp;&nbsp;&nbsp;try:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;raise&nbsp;Exception('Something&nbsp;went&nbsp;wrong!')<br>&nbsp;&nbsp;&nbsp;&nbsp;except&nbsp;Exception&nbsp;as&nbsp;e:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;logging.error(f\"Error&nbsp;in&nbsp;worker:&nbsp;{e}\")<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;p&nbsp;=&nbsp;Process(target=worker)<br>&nbsp;&nbsp;&nbsp;&nbsp;p.start()<br>&nbsp;&nbsp;&nbsp;&nbsp;p.join()<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0a\u7b56\u7565\u6db5\u76d6\u4e86\u4ece\u57fa\u7840\u7684\u8fdb\u7a0b\u521b\u5efa\u5230\u9ad8\u7ea7\u7684\u8fdb\u7a0b\u7ba1\u7406\u548c\u5f02\u5e38\u5904\u7406\uff0c\u53ef\u4ee5\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u548c\u638c\u63e1Python\u4e2d\u7684\u8fdb\u7a0b\u7ba1\u7406\u6280\u672f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_%E5%B9%B6%E5%8F%91%E6%A8%A1%E5%9E%8B%E7%9A%84%E9%80%89%E6%8B%A9%EF%BC%9A%E8%BF%9B%E7%A8%8B_vs_%E7%BA%BF%E7%A8%8B_vs_%E5%8D%8F%E7%A8%8B\"><\/span><strong>11. \u5e76\u53d1\u6a21\u578b\u7684\u9009\u62e9\uff1a\u8fdb\u7a0b vs. \u7ebf\u7a0b vs. \u534f\u7a0b<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li><strong>\u8fdb\u7a0b<\/strong>\uff1a\u9002\u7528\u4e8eCPU\u5bc6\u96c6\u578b\u4efb\u52a1\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u4ee5\u5728\u4e0d\u540c\u7684CPU\u6838\u5fc3\u4e0a\u5e76\u884c\u8fd0\u884c\u3002<\/li>\n\n\n\n<li><strong>\u7ebf\u7a0b<\/strong>\uff1a\u9002\u7528\u4e8eI\/O\u5bc6\u96c6\u578b\u4efb\u52a1\uff0c\u5728\u5355\u4e2a\u8fdb\u7a0b\u5185\u5171\u4eab\u8d44\u6e90\uff0c\u4f46\u53d7GIL\u9650\u5236\u3002<\/li>\n\n\n\n<li><strong>\u534f\u7a0b<\/strong>\uff1a\u8f7b\u91cf\u7ea7\u7684\u5e76\u53d1\u6a21\u578b\uff0c\u9002\u7528\u4e8e\u9ad8\u5ea6I\/O\u5bc6\u96c6\u578b\u548c\u9ad8\u5e76\u53d1\u573a\u666f\uff0c\u5982\u7f51\u7edc\u8bf7\u6c42\u5904\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import&nbsp;asyncio<br><br>async&nbsp;def&nbsp;my_coroutine():<br>&nbsp;&nbsp;&nbsp;&nbsp;print(\"Starting&nbsp;coroutine\")<br>&nbsp;&nbsp;&nbsp;&nbsp;await&nbsp;asyncio.sleep(1)<br>&nbsp;&nbsp;&nbsp;&nbsp;print(\"Coroutine&nbsp;finished\")<br><br>async&nbsp;def&nbsp;main():<br>&nbsp;&nbsp;&nbsp;&nbsp;await&nbsp;asyncio.gather(my_coroutine(),&nbsp;my_coroutine())<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;asyncio.run(main())<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_%E5%88%A9%E7%94%A8concurrentfutures%E7%AE%80%E5%8C%96%E5%A4%9A%E8%BF%9B%E7%A8%8B%E7%BC%96%E7%A8%8B\"><\/span><strong>12. \u5229\u7528<code>concurrent.futures<\/code>\u7b80\u5316\u591a\u8fdb\u7a0b\u7f16\u7a0b<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li><code>concurrent.futures<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9ad8\u7ea7\u63a5\u53e3\uff0c\u7b80\u5316\u4e86\u5f02\u6b65\u6267\u884c\u51fd\u6570\u7684\u8c03\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from&nbsp;concurrent.futures&nbsp;import&nbsp;ProcessPoolExecutor<br><br>def&nbsp;square(x):<br>&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;x&nbsp;*&nbsp;x<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;with&nbsp;ProcessPoolExecutor(max_workers=4)&nbsp;as&nbsp;executor:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;results&nbsp;=&nbsp;list(executor.map(square,&nbsp;range(10)))<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print(results)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"13_%E8%BF%9B%E7%A8%8B%E6%AD%BB%E9%94%81%E7%9A%84%E9%A2%84%E9%98%B2%E4%B8%8E%E8%A7%A3%E5%86%B3\"><\/span><strong>13. \u8fdb\u7a0b\u6b7b\u9501\u7684\u9884\u9632\u4e0e\u89e3\u51b3<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u6b7b\u9501\u53d1\u751f\u5728\u4e24\u4e2a\u6216\u66f4\u591a\u8fdb\u7a0b\u4e92\u76f8\u7b49\u5f85\u5bf9\u65b9\u91ca\u653e\u8d44\u6e90\u800c\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\u7684\u60c5\u51b5\u3002<\/li>\n\n\n\n<li>\u9884\u9632\u63aa\u65bd\u5305\u62ec\u4f7f\u7528\u9501\u7684\u8d85\u65f6\u3001\u8d44\u6e90\u5206\u7ea7\u548c\u6b7b\u9501\u68c0\u6d4b\u7b97\u6cd5\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from&nbsp;multiprocessing&nbsp;import&nbsp;Lock<br><br>lock1&nbsp;=&nbsp;Lock()<br>lock2&nbsp;=&nbsp;Lock()<br><br>def&nbsp;process1():<br>&nbsp;&nbsp;&nbsp;&nbsp;while&nbsp;True:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;lock1.acquire(timeout=1):<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;try:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;lock2.acquire(timeout=1):<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;try:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print(\"Process&nbsp;1&nbsp;executing\")<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;finally:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;lock2.release()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;finally:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;lock1.release()<br><br>def&nbsp;process2():<br>&nbsp;&nbsp;&nbsp;&nbsp;while&nbsp;True:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;lock2.acquire(timeout=1):<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;try:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;lock1.acquire(timeout=1):<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;try:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print(\"Process&nbsp;2&nbsp;executing\")<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;finally:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;lock1.release()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;finally:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;lock2.release()<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;p1&nbsp;=&nbsp;Process(target=process1)<br>&nbsp;&nbsp;&nbsp;&nbsp;p2&nbsp;=&nbsp;Process(target=process2)<br>&nbsp;&nbsp;&nbsp;&nbsp;p1.start()<br>&nbsp;&nbsp;&nbsp;&nbsp;p2.start()<br>&nbsp;&nbsp;&nbsp;&nbsp;p1.join()<br>&nbsp;&nbsp;&nbsp;&nbsp;p2.join()<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"14_%E8%B5%84%E6%BA%90%E7%AE%A1%E7%90%86%E4%B8%8E%E4%B8%8A%E4%B8%8B%E6%96%87%E7%AE%A1%E7%90%86%E5%99%A8\"><\/span><strong>14. \u8d44\u6e90\u7ba1\u7406\u4e0e\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\uff08\u5982<code>with<\/code>\u8bed\u53e5\uff09\u53ef\u4ee5\u81ea\u52a8\u7ba1\u7406\u8d44\u6e90\u7684\u751f\u547d\u5468\u671f\uff0c\u907f\u514d\u8d44\u6e90\u6cc4\u9732\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from&nbsp;multiprocessing&nbsp;import&nbsp;Pool<br><br>def&nbsp;worker(num):<br>&nbsp;&nbsp;&nbsp;&nbsp;print(f\"Worker&nbsp;{num}&nbsp;started\")<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;with&nbsp;Pool(processes=4)&nbsp;as&nbsp;pool:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pool.map(worker,&nbsp;range(4))<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"15_%E8%BF%9B%E7%A8%8B%E5%AE%89%E5%85%A8%E7%9A%84%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84\"><\/span><strong>15. \u8fdb\u7a0b\u5b89\u5168\u7684\u6570\u636e\u7ed3\u6784<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>\u7406\u8bba\u8bb2\u89e3<\/strong>\uff1a<\/p>\n\n\n\n<ul>\n<li>\u5728\u591a\u8fdb\u7a0b\u73af\u5883\u4e2d\uff0c\u4f7f\u7528\u8fdb\u7a0b\u5b89\u5168\u7684\u6570\u636e\u7ed3\u6784\u53ef\u4ee5\u907f\u514d\u6570\u636e\u7ade\u4e89\u548c\u4e0d\u4e00\u81f4\u95ee\u9898\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from&nbsp;multiprocessing&nbsp;import&nbsp;Manager<br><br>def&nbsp;add_to_list(shared_list):<br>&nbsp;&nbsp;&nbsp;&nbsp;shared_list.append(1)<br><br>if&nbsp;__name__&nbsp;==&nbsp;\"__main__\":<br>&nbsp;&nbsp;&nbsp;&nbsp;manager&nbsp;=&nbsp;Manager()<br>&nbsp;&nbsp;&nbsp;&nbsp;shared_list&nbsp;=&nbsp;manager.list()<br>&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;processes&nbsp;=&nbsp;&#91;]<br>&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;_&nbsp;in&nbsp;range(10):<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;p&nbsp;=&nbsp;Process(target=add_to_list,&nbsp;args=(shared_list,))<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;p.start()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;processes.append(p)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;for&nbsp;p&nbsp;in&nbsp;processes:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;p.join()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;print(shared_list)<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0a\u7b56\u7565\u6df1\u5165\u63a2\u8ba8\u4e86Python\u8fdb\u7a0b\u7ba1\u7406\u7684\u5404\u4e2a\u65b9\u9762\uff0c\u4ece\u5e76\u53d1\u6a21\u578b\u7684\u9009\u62e9\u5230\u5177\u4f53\u7684\u5b9e\u73b0\u7ec6\u8282\uff0c\u5982\u6b7b\u9501\u9884\u9632\u3001\u8d44\u6e90\u7ba1\u7406\u548c\u8fdb\u7a0b\u5b89\u5168\u7684\u6570\u636e\u7ed3\u6784\u3002\u901a\u8fc7\u8fd9\u4e9b\u5b9e\u6218\u7b56\u7565\u7684\u5e94\u7528\uff0c\u4f60\u5c06\u80fd\u591f\u66f4\u52a0\u719f\u7ec3\u5730\u4f7f\u7528Python\u8fdb\u884c\u9ad8\u6548\u7684\u591a\u8fdb\u7a0b\u7f16\u7a0b\uff0c\u4ece\u800c\u63d0\u5347\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. \u7406\u89e3\u8fdb\u7a0b\u4e0e\u591a\u8fdb\u7a0b \u7406\u8bba\u8bb2\u89e3\uff1a \u793a\u4f8b\u4ee3\u7801\uff1a 2. \u4f7f\u7528multiprocessing\u6a21\u5757\u521b\u5efa\u5b50\u8fdb&hellip; <a href=\"http:\/\/viplao.com\/index.php\/2024\/12\/01\/python%e5%9f%ba%e7%a1%80%e6%8a%80%e8%83%bd-python%e8%bf%9b%e7%a8%8b%e7%ae%a1%e7%90%86%e7%9a%8415%e5%a4%a7%e5%ae%9e%e6%88%98%e7%ad%96%e7%95%a5\/\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">PYTHON\u57fa\u7840\u6280\u80fd \u2013\u00a0Python\u8fdb\u7a0b\u7ba1\u7406\u768415\u5927\u5b9e\u6218\u7b56\u7565<\/span><i class=\"fa fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[28],"views":1038,"_links":{"self":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/2914"}],"collection":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/comments?post=2914"}],"version-history":[{"count":1,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/2914\/revisions"}],"predecessor-version":[{"id":2915,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/posts\/2914\/revisions\/2915"}],"wp:attachment":[{"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/media?parent=2914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/categories?post=2914"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/viplao.com\/index.php\/wp-json\/wp\/v2\/tags?post=2914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}