<\/p>\n
\u5728 Python \u7a0b\u5f0f\u8a2d\u8a08\u4e2d\uff0c`exit()` \u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u7528\u65bc\u7d50\u675f\u7a0b\u5f0f\u7684\u57f7\u884c\u3002\u9019\u500b\u51fd\u6578\u53ef\u4ee5\u63a5\u6536\u4e00\u500b\u53c3\u6578\uff0c\u4ee5\u6307\u5b9a\u7a0b\u5f0f\u7d50\u675f\u6642\u7684\u72c0\u614b\u78bc\uff0c\u9810\u8a2d\u503c\u70ba 0\uff0c\u8868\u793a\u7a0b\u5f0f\u6b63\u5e38\u7d50\u675f\u3002<\/p>\n
## `exit()` \u51fd\u6578\u7684\u57fa\u672c\u7528\u6cd5<\/p>\n
`exit()` \u51fd\u6578\u53ef\u4ee5\u5728\u7a0b\u5f0f\u7684\u4efb\u4f55\u90e8\u5206\u4f7f\u7528\uff0c\u7121\u8ad6\u662f\u5728\u51fd\u6578\u5167\u3001\u51fd\u6578\u5916\uff0c\u6216\u662f\u985e\u5225\u5167\u3001\u985e\u5225\u5916\uff0c\u53ea\u8981\u7a0b\u5f0f\u57f7\u884c\u5230 `exit()` \u51fd\u6578\uff0c\u7a0b\u5f0f\u4fbf\u6703\u7acb\u5373\u7d42\u6b62\u3002<\/p>\n
“`python
\ndef main():
\n print(“Hello World!”)
\n exit(0)<\/p>\n
if __name__ == “__main__”:
\n main()
\n“`<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b `main()` \u51fd\u6578\uff0c\u4e26\u5728\u5176\u4e2d\u4f7f\u7528 `exit()` \u51fd\u6578\u4f86\u7d50\u675f\u7a0b\u5f0f\u7684\u57f7\u884c\u3002\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u6307\u5b9a\u72c0\u614b\u78bc\u70ba 0\uff0c\u8868\u793a\u7a0b\u5f0f\u6b63\u5e38\u7d50\u675f\u3002<\/p>\n
## \u4f7f\u7528 `exit()` \u6aa2\u67e5\u7a0b\u5f0f\u72c0\u614b<\/p>\n
\u9664\u4e86\u7d50\u675f\u7a0b\u5f0f\u5916\uff0c`exit()` \u51fd\u6578\u9084\u53ef\u4ee5\u7528\u4f86\u6aa2\u67e5\u7a0b\u5f0f\u7684\u57f7\u884c\u72c0\u614b\u3002\u7576\u7a0b\u5f0f\u57f7\u884c\u5230\u7279\u5b9a\u4f4d\u7f6e\u6642\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 `exit()` \u51fd\u6578\u4f86\u5224\u65b7\u662f\u5426\u6b63\u5e38\u57f7\u884c\u3002\u5982\u679c\u7a0b\u5f0f\u904b\u884c\u6b63\u5e38\uff0c\u5247 `exit()` \u51fd\u6578\u6703\u8fd4\u56de 0\uff0c\u82e5\u51fa\u73fe\u554f\u984c\uff0c\u5247\u6703\u8fd4\u56de\u975e 0 \u7684\u503c\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u53e6\u4e00\u500b\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u5728\u7a0b\u5f0f\u4e2d\u4f7f\u7528 `exit()` \u4f86\u6aa2\u67e5\u57f7\u884c\u72c0\u614b\uff1a<\/p>\n
“`python
\ndef validate_input(user_input):
\n if user_input < 0:\n print(\"\u932f\u8aa4\uff1a\u8f38\u5165\u5fc5\u9808\u70ba\u975e\u8ca0\u6578\u3002\")\n exit(1) # \u4ee5\u975e 0 \u72c0\u614b\u78bc\u7d50\u675f\u7a0b\u5f0f\n print(\"\u8f38\u5165\u6709\u6548\uff1a\", user_input)\n\nif __name__ == \"__main__\":\n user_input = int(input(\"\u8acb\u8f38\u5165\u4e00\u500b\u975e\u8ca0\u6578\uff1a\"))\n validate_input(user_input)\n```\n\n\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u82e5\u4f7f\u7528\u8005\u8f38\u5165\u4e00\u500b\u8ca0\u6578\uff0c\u7a0b\u5f0f\u5c07\u986f\u793a\u932f\u8aa4\u8a0a\u606f\u4e26\u4ee5\u72c0\u614b\u78bc 1 \u7d50\u675f\u3002\n\n## \u5e38\u898b\u554f\u984c\u89e3\u7b54\uff08Q&A\uff09\n\n### Q1\uff1a`exit()` \u51fd\u6578\u8207 `sys.exit()` \u6709\u4f55\u4e0d\u540c\uff1f\n**A1**\uff1a`exit()` \u51fd\u6578\u662f\u5167\u5efa\u7684\uff0c\u7528\u65bc\u7d42\u6b62\u7a0b\u5f0f\uff0c\u9069\u5408\u7c21\u55ae\u7528\u6cd5\u3002`sys.exit()` \u4f86\u81ea `sys` \u6a21\u7d44\uff0c\u63d0\u4f9b\u66f4\u9748\u6d3b\u7684\u932f\u8aa4\u8655\u7406\u548c\u9000\u51fa\u72c0\u614b\u7684\u9078\u64c7\u3002\n\n### Q2\uff1a\u5982\u4f55\u5728\u5927\u578b\u7a0b\u5f0f\u4e2d\u512a\u96c5\u5730\u8655\u7406\u932f\u8aa4\u4e26\u4f7f\u7528 `exit()`\uff1f\n**A2**\uff1a\u5728\u5927\u578b\u7a0b\u5f0f\u4e2d\uff0c\u5efa\u8b70\u4f7f\u7528 try-except \u584a\u4f86\u6355\u6349\u7570\u5e38\uff0c\u7136\u5f8c\u6c7a\u5b9a\u662f\u5426\u4f7f\u7528 `exit()` \u51fd\u6578\u7d50\u675f\u7a0b\u5f0f\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u4f9b\u66f4\u6e05\u6670\u7684\u932f\u8aa4\u8a0a\u606f\u548c\u72c0\u614b\u78bc\u3002\n\n### Q3\uff1a`exit()` \u51fd\u6578\u53ef\u4ee5\u7528\u65bc\u591a\u57f7\u884c\u7dd2\u7a0b\u5f0f\u55ce\uff1f\n**A3**\uff1a\u53ef\u4ee5\uff0c\u4f46\u9700\u5c0f\u5fc3\u4f7f\u7528\u3002\u5728\u591a\u57f7\u884c\u7dd2\u74b0\u5883\u4e2d\uff0c\u4f7f\u7528 `exit()` \u51fd\u6578\u5c07\u7d42\u6b62\u6240\u6709\u57f7\u884c\u7dd2\uff0c\u5efa\u8b70\u4f7f\u7528 `threading` \u6a21\u7d44\u4e2d\u7684\u65b9\u6cd5\u4f86\u66f4\u7cbe\u7d30\u5730\u63a7\u5236\u57f7\u884c\u7dd2\u3002\n\n\u5728 Python \u7684\u7a0b\u5f0f\u8a2d\u8a08\u4e2d\uff0c\u5408\u7406\u4f7f\u7528 `exit()` \u51fd\u6578\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u5730\u7ba1\u7406\u7a0b\u5f0f\u7684\u57f7\u884c\u6d41\u7a0b\uff0c\u66f4\u597d\u5730\u63a7\u5236\u932f\u8aa4\u7684\u8655\u7406\u3002\u82e5\u60f3\u9032\u4e00\u6b65\u4e86\u89e3 Python \u7684\u5176\u4ed6\u529f\u80fd\uff0c\u6b61\u8fce\u53c3\u8003 [\u9019\u88e1](https:\/\/vocus.cc\/article\/63e4f3c5fd897800019f1c19) \u7684\u6559\u5b78\u3002\n\n---\n<\/p>\n","protected":false},"excerpt":{"rendered":"
exit()\u51fd\u6578\u662fPython\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u7528\u65bc\u7d42\u6b62\u7a0b\u5e8f\u7684\u57f7\u884c\uff0c\u4e26\u8fd4\u56de\u4e00\u500b\u7d66\u5b9a\u7684\u8fd4\u56de\u503c\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39Python\u4e2d\u7684exit()\u51fd\u6578\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u793a\u4f8b\u4f86\u8aaa\u660e\u5b83\u7684\u7528\u6cd5\u3002<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[15],"class_list":["post-3080","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2022\/12\/DALL\u00b7E-2022-12-28-14.25.55-\u62f7\u8c9d2.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-NG","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3080","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3080"}],"version-history":[{"count":2,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3080\/revisions"}],"predecessor-version":[{"id":12938,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3080\/revisions\/12938"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3080"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3080"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}