{"id":14539,"date":"2024-05-04T11:50:57","date_gmt":"2024-05-04T03:50:57","guid":{"rendered":"https:\/\/92it.top\/?p=14539"},"modified":"2024-05-04T11:50:57","modified_gmt":"2024-05-04T03:50:57","slug":"python%e4%b8%ad%e7%9a%84if-__name__-__main__%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f%e4%b8%ba%e4%bb%80%e4%b9%88%e8%bf%99%e6%a0%b7%e5%86%99%ef%bc%9f%e6%9c%89%e4%bb%80%e4%b9%88%e4%bd%9c%e7%94%a8","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=14539","title":{"rendered":"Python\u4e2d\u7684if __name__ == &#8220;__main__&#8221;\u662f\u4ec0\u4e48\uff1f\u4e3a\u4ec0\u4e48\u8fd9\u6837\u5199\uff1f\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f"},"content":{"rendered":"\n<p><strong>\u5f15\u8a00<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5f53\u521d\u5b66\u4e60Python\u7f16\u7a0b\u8bed\u8a00\u65f6\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u6bb5\u4ee3\u7801\uff1a<strong><code>if __name__ == \"__main__\"<\/code><\/strong>\u3002\u521d\u5b66\u8005\u53ef\u80fd\u4f1a\u7591\u60d1\u8fd9\u6bb5\u4ee3\u7801\u7684\u4f5c\u7528\u548c\u610f\u4e49\u662f\u4ec0\u4e48\uff0c\u4e3a\u4ec0\u4e48\u8981\u8fd9\u6837\u5199\u3002\u672c\u6587\u5c06\u5bf9\u8fd9\u6bb5\u4ee3\u7801\u8fdb\u884c\u8be6\u7ec6\u5730\u89e3\u6790\uff0c\u5e76\u63d0\u4f9b\u4ee3\u7801\u793a\u4f8b\uff0c\u5e2e\u52a9\u521d\u5b66\u8005\u66f4\u597d\u5730\u7406\u89e3\u8fd9\u4e00\u6982\u5ff5\u3002<\/p>\n\n\n\n<p><strong><code>if __name__ == \"__main__\"<\/code>\u7684\u57fa\u672c\u6982\u5ff5<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5728Python\u4e2d\uff0c<code>if __name__ == \"__main__\"<\/code>\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u4ee3\u7801\u7ed3\u6784\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u5224\u65ad\u6a21\u5757\u662f\u88ab\u76f4\u63a5\u8fd0\u884c\u8fd8\u662f\u88ab\u4f5c\u4e3a\u4e00\u4e2a\u6a21\u5757\u5bfc\u5165\u5230\u5176\u4ed6\u6a21\u5757\u4e2d\u3002<\/p>\n\n\n\n<p>\u5f53\u6a21\u5757\u88ab\u76f4\u63a5\u8fd0\u884c\u65f6\uff0cPython\u89e3\u91ca\u5668\u4f1a\u5c06<code>__name__<\/code>\u53d8\u91cf\u7684\u503c\u8bbe\u7f6e\u4e3a<code>\"__main__\"<\/code>\uff0c\u800c\u5f53\u6a21\u5757\u88ab\u5bfc\u5165\u65f6\uff0c<code>__name__<\/code>\u7684\u503c\u5c06\u662f\u6a21\u5757\u7684\u540d\u5b57\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0c\u901a\u8fc7\u5224\u65ad<code>__name__<\/code>\u7684\u503c\u662f\u5426\u7b49\u4e8e<code>\"__main__\"<\/code>\uff0c\u6211\u4eec\u53ef\u4ee5\u786e\u5b9a\u6a21\u5757\u662f\u88ab\u76f4\u63a5\u8fd0\u884c\u8fd8\u662f\u88ab\u5bfc\u5165\uff0c\u5e76\u53ef\u4ee5\u76f8\u5e94\u5730\u6267\u884c\u4e0d\u540c\u7684\u4ee3\u7801\u903b\u8f91\u3002<\/p>\n\n\n\n<p><strong>\u4ee3\u7801\u793a\u4f8b<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3<code>if __name__ == \"__main__\"<\/code>\u7684\u4f5c\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u6765\u6f14\u793a\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a&#8221;example.py&#8221;\u7684\u6a21\u5757\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u542b\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># example.py\n\ndef hello_world():\n    print(\"Hello, World!\")\n\nif __name__ == \"__main__\":\n    hello_world()<\/pre>\n\n\n\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3ahello_world\u7684\u51fd\u6570\uff0c\u7528\u4e8e\u6253\u5370&#8221;Hello, World!&#8221;\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n<p>\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528<code>if __name__ == \"__main__\"<\/code>\u7ed3\u6784\u6765\u5224\u65ad\u6a21\u5757\u662f\u5426\u88ab\u76f4\u63a5\u8fd0\u884c\uff0c\u5982\u679c\u662f\uff0c\u5219\u8c03\u7528hello_world\u51fd\u6570\u6253\u5370&#8221;Hello, World!&#8221;\u3002<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a&#8221;main.py&#8221;\u7684\u811a\u672c\u6587\u4ef6\uff0c\u7528\u4e8e\u5bfc\u5165\u5e76\u8c03\u7528example\u6a21\u5757\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># main.py\n\nimport example\n\nexample.hello_world()<\/pre>\n\n\n\n<p>\u5728main.py\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7import\u8bed\u53e5\u5bfc\u5165\u4e86example\u6a21\u5757\uff0c\u5e76\u8c03\u7528\u4e86\u5176\u4e2d\u7684hello_world\u51fd\u6570\u3002<\/p>\n\n\n\n<p>\u6b64\u65f6\uff0c\u7531\u4e8eexample\u6a21\u5757\u88ab\u5bfc\u5165\uff0c<code>__name__<\/code>\u7684\u503c\u5c06\u662f&#8221;example&#8221;\uff0c\u800c\u4e0d\u662f<code>\"__main__\"<\/code>\u3002\u56e0\u6b64\uff0cexample\u6a21\u5757\u4e2d\u7684<code>if __name__ == \"__main__\"<\/code>\u7ed3\u6784\u4e2d\u7684\u4ee3\u7801\u5c06\u4e0d\u4f1a\u88ab\u6267\u884c\u3002<\/p>\n\n\n\n<p><strong><code>if __name__ == \"__main__\"<\/code>\u7684\u4f7f\u7528\u573a\u666f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><code>if __name__ == \"__main__\"<\/code>\u7ed3\u6784\u901a\u5e38\u7528\u4e8e\u7f16\u5199\u6a21\u5757\u7684\u6d4b\u8bd5\u4ee3\u7801\u3002\u901a\u8fc7\u5c06\u6d4b\u8bd5\u4ee3\u7801\u653e\u5728if <code>__name__ == \"__main__\"<\/code>\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u76f4\u63a5\u8fd0\u884c\u6a21\u5757\u65f6\u6267\u884c\u6d4b\u8bd5\u4ee3\u7801\uff0c\u800c\u5728\u88ab\u5bfc\u5165\u65f6\u4e0d\u6267\u884c\u6d4b\u8bd5\u4ee3\u7801\u3002\u8fd9\u6837\u53ef\u4ee5\u4f7f\u6211\u4eec\u7684\u6a21\u5757\u65e2\u53ef\u4ee5\u4f5c\u4e3a\u72ec\u7acb\u7684\u7a0b\u5e8f\u8fd0\u884c\uff0c\u53c8\u53ef\u4ee5\u88ab\u5176\u4ed6\u6a21\u5757\u5bfc\u5165\u548c\u8c03\u7528\uff0c\u63d0\u9ad8\u4e86\u6a21\u5757\u7684\u7075\u6d3b\u6027\u548c\u590d\u7528\u6027\u3002<\/p>\n\n\n\n<p><strong>\u8fdb\u4e00\u6b65\u7406\u89e3<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u6709\u4e9b\u521d\u5b66\u8005\u53ef\u80fd\u4f1a\u5bf9<code>if __name__ == \"__main__\"<\/code>\u4e2d\u7684<code>\"__main__\"<\/code>\u7684\u542b\u4e49\u4ea7\u751f\u7591\u60d1\u3002<\/p>\n\n\n\n<p>\u8fd9\u91cc\u7684<code>\"__main__\"<\/code>\u5b9e\u9645\u4e0a\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u5b57\u7b26\u4e32\uff0c\u8868\u793aPython\u7a0b\u5e8f\u7684\u4e3b\u5165\u53e3\u70b9\u3002\u5f53\u6211\u4eec\u5728\u547d\u4ee4\u884c\u4e2d\u8fd0\u884c\u4e00\u4e2aPython\u7a0b\u5e8f\u65f6\uff0cPython\u89e3\u91ca\u5668\u4f1a\u9ed8\u8ba4\u5c06\u8be5\u7a0b\u5e8f\u5f53\u4f5c\u4e3b\u7a0b\u5e8f\u6765\u6267\u884c\uff0c\u6b64\u65f6<code>__name__<\/code>\u7684\u503c\u5c06\u88ab\u8bbe\u7f6e\u4e3a<code>\"__main__\"<\/code>\u3002<\/p>\n\n\n\n<p>\u800c\u5f53\u4e00\u4e2a\u6a21\u5757\u88ab\u5bfc\u5165\u65f6\uff0cPython\u89e3\u91ca\u5668\u4f1a\u5c06\u8be5\u6a21\u5757\u5f53\u4f5c\u4e00\u4e2a\u666e\u901a\u7684\u6a21\u5757\uff0c<code>__name__<\/code>\u7684\u503c\u5c06\u662f\u6a21\u5757\u7684\u540d\u5b57\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\uff0c\u5f53\u6211\u4eec\u4f7f\u7528<code>if __name__ == \"__main__\"<\/code>\u65f6\uff0c\u5b9e\u9645\u4e0a\u662f\u5728\u5224\u65ad\u6a21\u5757\u662f\u5426\u4f5c\u4e3a\u4e3b\u7a0b\u5e8f\u8fd0\u884c\uff0c\u4ece\u800c\u6267\u884c\u76f8\u5e94\u7684\u4ee3\u7801\u903b\u8f91\u3002\u8fd9\u5bf9\u4e8e\u6a21\u5757\u7684\u6d4b\u8bd5\u3001\u8c03\u8bd5\u548c\u72ec\u7acb\u8fd0\u884c\u975e\u5e38\u6709\u7528\u3002<\/p>\n\n\n\n<p><strong>\u7ed3\u8bed<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u8be6\u7ec6\u4ecb\u7ecd\u4e86Python\u4e2d\u7684<code>if __name__ == \"__main__\"<\/code>\u7ed3\u6784\u7684\u4f5c\u7528\u548c\u610f\u4e49\uff0c\u5e76\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u8fd9\u4e00\u6982\u5ff5\u3002<code>if __name__ == \"__main__\"<\/code>\u662fPython\u7f16\u7a0b\u4e2d\u5e38\u7528\u7684\u6280\u5de7\u4e4b\u4e00\uff0c\u5e0c\u671b\u8bfb\u8005\u80fd\u591f\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u66f4\u52a0\u719f\u7ec3\u5730\u8fd0\u7528\u8fd9\u4e00\u6280\u5de7\uff0c\u63d0\u9ad8\u81ea\u5df1\u7684\u7f16\u7a0b\u6c34\u5e73\u3002<\/p>\n\n\n\n<p>\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u76f8\u4fe1\u8bfb\u8005\u5df2\u7ecf\u5bf9<code>if __name__ == \"__main__\"<\/code>\u6709\u4e86\u66f4\u6e05\u6670\u7684\u8ba4\u8bc6\u548c\u7406\u89e3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u5f53\u521d\u5b66\u4e60Python\u7f16\u7a0b\u8bed\u8a00\u65f6\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u6bb5\u4ee3\u7801\uff1aif __name__ == &#8220;__main__&#8221;\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/14539"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14539"}],"version-history":[{"count":1,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/14539\/revisions"}],"predecessor-version":[{"id":14540,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/14539\/revisions\/14540"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14539"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14539"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}