{"id":994632,"date":"2024-12-27T08:57:11","date_gmt":"2024-12-27T00:57:11","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/994632.html"},"modified":"2024-12-27T08:57:55","modified_gmt":"2024-12-27T00:57:55","slug":"python%e5%a6%82%e4%bd%95%e5%81%9c%e6%ad%a2%e6%9f%90%e4%b8%aa%e8%84%9a%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/994632.html","title":{"rendered":"Python\u5982\u4f55\u505c\u6b62\u67d0\u4e2a\u811a\u672c"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25071532\/bacccb6e-0999-4f9a-9779-a6fa10bcea07.webp\" alt=\"Python\u5982\u4f55\u505c\u6b62\u67d0\u4e2a\u811a\u672c\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u505c\u6b62\u67d0\u4e2a\u811a\u672c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528<code>sys.exit()<\/code>\u3001<code>os._exit()<\/code>\u3001<code>exit()<\/code>\u3001<code>quit()<\/code>\u4ee5\u53ca\u901a\u8fc7\u6355\u83b7\u5f02\u5e38\u6765\u7ec8\u6b62\u811a\u672c\u3002<\/strong> \u5176\u4e2d\uff0c<code>sys.exit()<\/code>\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u7ed3\u675f\u7a0b\u5e8f\uff0c\u8fd8\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a\u72b6\u6001\u7801\u7ed9\u64cd\u4f5c\u7cfb\u7edf\uff0c\u4fbf\u4e8e\u540e\u7eed\u5904\u7406\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5c24\u5176\u662f\u5728\u7f16\u5199\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u65f6\uff0c\u4f7f\u7528<code>os._exit()<\/code>\u53ef\u80fd\u66f4\u52a0\u9002\u5408\uff0c\u56e0\u4e3a\u5b83\u4f1a\u7acb\u5373\u7ec8\u6b62\u8fdb\u7a0b\u800c\u4e0d\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u4f7f\u7528 <code>sys.exit()<\/code><\/h3>\n<\/p>\n<p><p><code>sys.exit()<\/code> \u662f Python \u63d0\u4f9b\u7684\u6807\u51c6\u9000\u51fa\u65b9\u6cd5\u3002\u901a\u5e38\u7528\u4e8e\u6b63\u5e38\u7ed3\u675f\u7a0b\u5e8f\u6216\u8005\u5728\u7a0b\u5e8f\u4e2d\u53d1\u751f\u9519\u8bef\u65f6\u9000\u51fa\u3002\u5b83\u4e0d\u4ec5\u53ef\u4ee5\u63a5\u53d7\u4e00\u4e2a\u6574\u6570\u53c2\u6570\u4f5c\u4e3a\u9000\u51fa\u72b6\u6001\u7801\uff080\u8868\u793a\u6210\u529f\uff0c\u975e0\u8868\u793a\u9519\u8bef\uff09\uff0c\u4e5f\u53ef\u4ee5\u63a5\u6536\u5b57\u7b26\u4e32\u53c2\u6570\u7528\u4e8e\u8f93\u51fa\u9519\u8bef\u4fe1\u606f\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u57fa\u672c\u7528\u6cd5<\/strong><\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u5bfc\u5165 <code>sys<\/code> \u6a21\u5757\uff0c\u53ef\u4ee5\u5728\u9700\u8981\u9000\u51fa\u7684\u5730\u65b9\u8c03\u7528 <code>sys.exit()<\/code>\u3002\u8fd9\u662f\u6700\u5e38\u89c1\u7684\u9000\u51fa\u65b9\u5f0f\uff0c\u9002\u7528\u4e8e\u5927\u591a\u6570\u573a\u666f\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import sys<\/p>\n<p>def m<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>n():<\/p>\n<p>    # \u5047\u8bbe\u67d0\u4e2a\u6761\u4ef6\u9700\u8981\u9000\u51fa<\/p>\n<p>    if some_condition:<\/p>\n<p>        print(&quot;Exiting script.&quot;)<\/p>\n<p>        sys.exit(0)  # \u4f7f\u75280\u8868\u793a\u6b63\u5e38\u9000\u51fa<\/p>\n<p>if __name__ == &#39;__main__&#39;:<\/p>\n<p>    main()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u8fd4\u56de\u72b6\u6001\u7801<\/strong><\/p>\n<\/p>\n<p><p>\u5728\u547d\u4ee4\u884c\u6267\u884c Python \u811a\u672c\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>$?<\/code> \u6765\u67e5\u770b\u9000\u51fa\u72b6\u6001\u7801\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">python script.py<\/p>\n<p>echo $?<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u82e5\u7a0b\u5e8f\u6b63\u5e38\u9000\u51fa\u5219\u8fd4\u56de0\uff0c\u82e5\u51fa\u73b0\u9519\u8bef\u8fd4\u56de\u975e0\u503c\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e8c\u3001\u4f7f\u7528 <code>os._exit()<\/code><\/h3>\n<\/p>\n<p><p><code>os._exit()<\/code> \u662f\u4e00\u4e2a\u4f4e\u7ea7\u522b\u7684\u9000\u51fa\u65b9\u6cd5\uff0c\u76f4\u63a5\u8c03\u7528\u7cfb\u7edf\u63a5\u53e3\u6765\u7ec8\u6b62\u8fdb\u7a0b\u3002\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4f1a\u629b\u51fa\u5f02\u5e38\uff0c\u7279\u522b\u9002\u5408\u5728\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u9002\u7528\u573a\u666f<\/strong><\/p>\n<\/p>\n<p><p>\u5728\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\uff0c\u82e5\u67d0\u4e2a\u7ebf\u7a0b\u9700\u8981\u7acb\u5373\u7ec8\u6b62\u6574\u4e2a\u8fdb\u7a0b\uff0c<code>os._exit()<\/code> \u662f\u4e00\u4e2a\u53ef\u9760\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import os<\/p>\n<p>def worker_thread():<\/p>\n<p>    # \u67d0\u4e9b\u60c5\u51b5\u4e0b\u9700\u8981\u7acb\u5373\u7ec8\u6b62\u7a0b\u5e8f<\/p>\n<p>    os._exit(0)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<\/p>\n<p><p>\u4f7f\u7528 <code>os._exit()<\/code> \u65f6\u9700\u8981\u8c28\u614e\uff0c\u56e0\u4e3a\u5b83\u4f1a\u7acb\u5373\u7ec8\u6b62\u6574\u4e2a\u8fdb\u7a0b\uff0c\u4e0d\u4f1a\u6267\u884c <code>finally<\/code> \u8bed\u53e5\u5757\uff0c\u4e5f\u4e0d\u4f1a\u8c03\u7528\u5bf9\u8c61\u7684\u6790\u6784\u51fd\u6570\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e09\u3001\u4f7f\u7528 <code>exit()<\/code> \u548c <code>quit()<\/code><\/h3>\n<\/p>\n<p><p><code>exit()<\/code> \u548c <code>quit()<\/code> \u662f Python \u63d0\u4f9b\u7684\u9000\u51fa\u547d\u4ee4\uff0c\u9002\u5408\u5728\u4ea4\u4e92\u5f0f\u89e3\u91ca\u5668\u4e2d\u4f7f\u7528\u3002\u5bf9\u4e8e\u7f16\u5199\u811a\u672c\uff0c\u5efa\u8bae\u4f7f\u7528 <code>sys.exit()<\/code>\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u4ea4\u4e92\u5f0f\u4f7f\u7528<\/strong><\/p>\n<\/p>\n<p><p>\u5728 Python \u89e3\u91ca\u5668\u4e2d\u8f93\u5165 <code>exit()<\/code> \u6216 <code>quit()<\/code> \u53ef\u4ee5\u9000\u51fa\u89e3\u91ca\u5668\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">&gt;&gt;&gt; exit()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u811a\u672c\u4e2d\u4f7f\u7528<\/strong><\/p>\n<\/p>\n<p><p>\u5728\u811a\u672c\u4e2d\u4f7f\u7528 <code>exit()<\/code> \u6216 <code>quit()<\/code> \u4f1a\u629b\u51fa <code>SystemExit<\/code> \u5f02\u5e38\uff0c\u56e0\u6b64\u4e0d\u63a8\u8350\u5728\u811a\u672c\u4e2d\u4f7f\u7528\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u56db\u3001\u901a\u8fc7\u5f02\u5e38\u5904\u7406\u7ec8\u6b62\u7a0b\u5e8f<\/h3>\n<\/p>\n<p><p>\u5728 Python \u4e2d\uff0c\u629b\u51fa\u5f02\u5e38\u4e5f\u662f\u4e00\u79cd\u7ec8\u6b62\u7a0b\u5e8f\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u6355\u83b7\u5f02\u5e38\uff0c\u53ef\u4ee5\u4f18\u96c5\u5730\u5904\u7406\u9519\u8bef\u5e76\u7ec8\u6b62\u7a0b\u5e8f\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u81ea\u5b9a\u4e49\u5f02\u5e38<\/strong><\/p>\n<\/p>\n<p><p>\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5f02\u5e38\u7c7b\uff0c\u5e76\u5728\u9047\u5230\u9519\u8bef\u65f6\u629b\u51fa\u8be5\u5f02\u5e38\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">class CustomError(Exception):<\/p>\n<p>    pass<\/p>\n<p>def function_that_may_fail():<\/p>\n<p>    raise CustomError(&quot;An error occurred.&quot;)<\/p>\n<p>try:<\/p>\n<p>    function_that_may_fail()<\/p>\n<p>except CustomError as e:<\/p>\n<p>    print(e)<\/p>\n<p>    sys.exit(1)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u4f18\u96c5\u5904\u7406<\/strong><\/p>\n<\/p>\n<p><p>\u5f02\u5e38\u5904\u7406\u4f7f\u7a0b\u5e8f\u66f4\u52a0\u5065\u58ee\uff0c\u53ef\u4ee5\u5728\u9000\u51fa\u524d\u6267\u884c\u4e00\u4e9b\u6e05\u7406\u64cd\u4f5c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">try:<\/p>\n<p>    # \u6267\u884c\u53ef\u80fd\u5931\u8d25\u7684\u64cd\u4f5c<\/p>\n<p>    risky_operation()<\/p>\n<p>except Exception as e:<\/p>\n<p>    print(f&quot;An error occurred: {e}&quot;)<\/p>\n<p>finally:<\/p>\n<p>    # \u6267\u884c\u6e05\u7406\u64cd\u4f5c<\/p>\n<p>    cleanup_resources()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e94\u3001\u4f7f\u7528 <code>break<\/code> \u548c <code>return<\/code> \u63a7\u5236\u6d41<\/h3>\n<\/p>\n<p><p>\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528 <code>break<\/code> \u8bed\u53e5\u9000\u51fa\u5faa\u73af\uff0c\u6216\u4f7f\u7528 <code>return<\/code> \u8bed\u53e5\u9000\u51fa\u51fd\u6570\uff0c\u4e5f\u662f\u4e00\u79cd\u505c\u6b62\u811a\u672c\u7684\u65b9\u5f0f\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u4f7f\u7528 <code>break<\/code><\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">for i in range(10):<\/p>\n<p>    if i == 5:<\/p>\n<p>        break  # \u9000\u51fa\u5faa\u73af<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u4f7f\u7528 <code>return<\/code><\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def some_function():<\/p>\n<p>    if some_condition:<\/p>\n<p>        return  # \u9000\u51fa\u51fd\u6570<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u516d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u5728\u7f16\u5199 Python \u811a\u672c\u65f6\uff0c\u9009\u62e9\u5408\u9002\u7684\u9000\u51fa\u65b9\u6cd5\u975e\u5e38\u91cd\u8981\u3002<code>sys.exit()<\/code> \u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u9002\u5408\u5927\u591a\u6570\u60c5\u51b5\u3002\u800c <code>os._exit()<\/code> \u5219\u9002\u5408\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\u4f7f\u7528\u3002\u901a\u8fc7\u5f02\u5e38\u5904\u7406\u53ef\u4ee5\u4f18\u96c5\u5730\u7ec8\u6b62\u7a0b\u5e8f\u5e76\u8fdb\u884c\u9519\u8bef\u5904\u7406\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u548c\u573a\u666f\uff0c\u9009\u62e9\u5408\u9002\u7684\u9000\u51fa\u65b9\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u4f18\u96c5\u5730\u505c\u6b62\u4e00\u4e2a\u6b63\u5728\u8fd0\u884c\u7684\u811a\u672c\uff1f<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528<code>try...except<\/code>\u5757\u6765\u6355\u83b7\u7528\u6237\u4e2d\u65ad\uff08\u5982Ctrl+C\uff09\u4fe1\u53f7\uff0c\u4ece\u800c\u4f18\u96c5\u5730\u505c\u6b62\u811a\u672c\u3002\u901a\u8fc7\u5728<code>except<\/code>\u5757\u4e2d\u5904\u7406\u6e05\u7406\u64cd\u4f5c\uff0c\u53ef\u4ee5\u786e\u4fdd\u5728\u811a\u672c\u7ec8\u6b62\u524d\u5b8c\u6210\u5fc5\u8981\u7684\u4efb\u52a1\u3002<\/p>\n<p><strong>\u4f7f\u7528\u54ea\u4e2a\u547d\u4ee4\u53ef\u4ee5\u5f3a\u5236\u505c\u6b62Python\u811a\u672c\u7684\u6267\u884c\uff1f<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528<code>sys.exit()<\/code>\u51fd\u6570\u5728\u811a\u672c\u4e2d\u4efb\u4f55\u4f4d\u7f6e\u7ec8\u6b62\u6267\u884c\u3002\u6b64\u547d\u4ee4\u4f1a\u5f15\u53d1\u4e00\u4e2a<code>SystemExit<\/code>\u5f02\u5e38\uff0c\u5bfc\u81f4\u811a\u672c\u7acb\u5373\u505c\u6b62\u3002\u6b64\u5916\uff0c\u5728\u547d\u4ee4\u884c\u4e2d\uff0c\u6309\u4e0bCtrl+C\u4e5f\u53ef\u4ee5\u5f3a\u5236\u4e2d\u65ad\u811a\u672c\u7684\u8fd0\u884c\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u8bbe\u7f6e\u6761\u4ef6\u4ee5\u81ea\u52a8\u505c\u6b62\u811a\u672c\uff1f<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u548c\u6761\u4ef6\u5224\u65ad\u6765\u8bbe\u7f6e\u81ea\u52a8\u505c\u6b62\u673a\u5236\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u68c0\u67e5\u7279\u5b9a\u53d8\u91cf\u7684\u503c\uff0c\u6216\u8005\u4f7f\u7528<code>time<\/code>\u6a21\u5757\u6765\u8bbe\u5b9a\u8fd0\u884c\u65f6\u95f4\uff0c\u4e00\u65e6\u6761\u4ef6\u6ee1\u8db3\u5c31\u8c03\u7528<code>break<\/code>\u8bed\u53e5\u9000\u51fa\u5faa\u73af\uff0c\u4ece\u800c\u505c\u6b62\u811a\u672c\u7684\u6267\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u505c\u6b62\u67d0\u4e2a\u811a\u672c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528sys.exit()\u3001os._exit()\u3001exit()\u3001quit [&hellip;]","protected":false},"author":3,"featured_media":994714,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/994632"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=994632"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/994632\/revisions"}],"predecessor-version":[{"id":994715,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/994632\/revisions\/994715"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/994714"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=994632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=994632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=994632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}