{"id":175798,"date":"2024-05-08T18:57:50","date_gmt":"2024-05-08T10:57:50","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/175798.html"},"modified":"2024-05-08T18:57:55","modified_gmt":"2024-05-08T10:57:55","slug":"python%e7%9a%84%e5%85%b3%e7%b3%bb%e8%bf%90%e7%ae%97%e7%ac%a6%e5%90%8c%e6%97%b6%e5%87%ba%e7%8e%b0%e5%9c%a8%e4%b8%80%e4%b8%aa%e7%ae%97%e5%bc%8f%ef%bc%8c%e5%a6%82%e4%bd%95%e6%af%94%e8%be%83","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/175798.html","title":{"rendered":"Python\u7684\u5173\u7cfb\u8fd0\u7b97\u7b26\u540c\u65f6\u51fa\u73b0\u5728\u4e00\u4e2a\u7b97\u5f0f\uff0c\u5982\u4f55\u6bd4\u8f83"},"content":{"rendered":"

\"Python\u7684\u5173\u7cfb\u8fd0\u7b97\u7b26\u540c\u65f6\u51fa\u73b0\u5728\u4e00\u4e2a\u7b97\u5f0f\uff0c\u5982\u4f55\u6bd4\u8f83\"<\/p>\n

Python\u7684\u5173\u7cfb\u8fd0\u7b97\u7b26\u540c\u65f6\u51fa\u73b0\u5728\u4e00\u4e2a\u7b97\u5f0f\u4e2d\u65f6\uff0c\u5b83\u4eec\u5c06\u6839\u636e\u4f18\u5148\u7ea7\u548c\u5173\u7cfb\u8fd0\u7b97\u7b26\u7684\u94fe\u5f0f\u6bd4\u8f83\u673a\u5236\u6765\u6bd4\u8f83\u5404\u4e2a\u5143\u7d20\u3002\u5728Python\u4e2d\uff0c\u5173\u7cfb\u8fd0\u7b97\u7b26\u5305\u62ec\u5927\u4e8e\uff08>\uff09\u3001\u5c0f\u4e8e\uff08<\uff09\u3001\u7b49\u4e8e\uff08==\uff09\u3001\u5927\u4e8e\u7b49\u4e8e\uff08>=\uff09\u3001\u5c0f\u4e8e\u7b49\u4e8e\uff08<=\uff09\u4ee5\u53ca\u4e0d\u7b49\u4e8e\uff08!=\uff09\u3002\u5f53\u5173\u7cfb\u8fd0\u7b97\u7b26\u540c\u65f6\u4f7f\u7528\u65f6\uff0c\u9996\u5148\uff0c\u5fc5\u987b\u7406\u89e3\u7b97\u5f0f\u4e2d\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7\uff0c\u5176\u6b21\uff0cPython\u7279\u6709\u7684\u94fe\u5f0f\u6bd4\u8f83\u673a\u5236\u4f7f\u5f97\u7b97\u5f0f\u53ef\u4ee5\u8fde\u7eed\u6bd4\u8f83\uff0c\u4f8b\u5982a < b < c<\/code>\u4f1a\u88ab\u89e3\u91ca\u4e3aa < b and b < c<\/code>\uff0c\u6bcf\u4e00\u4e2a\u5355\u72ec\u7684\u6bd4\u8f83\u4ea7\u751f\u5e03\u5c14\u503c\u7ed3\u679c\uff0c\u6574\u4e2a\u7b97\u5f0f\u6700\u7ec8\u6839\u636e\u5e03\u5c14\u8fd0\u7b97\u7684\u7ed3\u679c\u7ed9\u51faTrue\u6216False\u3002\u6211\u4eec\u5c06\u4f1a\u8be6\u7ec6\u63cf\u8ff0\u94fe\u5f0f\u6bd4\u8f83\u673a\u5236\u5e76\u4e3e\u4f8b\u8bf4\u660e\u5982\u4f55\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u5173\u7cfb\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7<\/h3>\n<\/p>\n

\u5173\u7cfb\u8fd0\u7b97\u7b26\u5728Python\u4e2d\u7684\u8fd0\u7b97\u987a\u5e8f\u662f\u4ece\u5de6\u5230\u53f3\u3002\u5728\u9047\u5230\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u65f6\uff0c\u6240\u6709\u7684\u5173\u7cfb\u8fd0\u7b97\u7b26\u90fd\u62e5\u6709\u76f8\u540c\u7684\u4f18\u5148\u7ea7\u3002\u8fd9\u610f\u5473\u7740\u6ca1\u6709\u4e00\u4e2a\u8fd0\u7b97\u7b26\u4f1a\u6bd4\u5176\u4ed6\u8fd0\u7b97\u7b26\u66f4\u65e9\u5730\u8fdb\u884c\u8ba1\u7b97\u3002\u76f8\u53cd\uff0c\u5b83\u4eec\u4f1a\u6309\u7167\u4ece\u5de6\u81f3\u53f3\u7684\u987a\u5e8f\u8ba1\u7b97\u3002\u91cd\u8981\u7684\u662f\uff0c\u5173\u7cfb\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7\u4f4e\u4e8e\u7b97\u672f\u8fd0\u7b97\u7b26\u3002\u56e0\u6b64\uff0c\u5728\u8fdb\u884c\u5173\u7cfb\u6bd4\u8f83\u4e4b\u524d\uff0c\u7b97\u672f\u8fd0\u7b97\uff08\u5982\u52a0\u51cf\u4e58\u9664\uff09\u4f1a\u5148\u8fdb\u884c\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u94fe\u5f0f\u6bd4\u8f83\u673a\u5236<\/h3>\n<\/p>\n

Python\u652f\u6301\u94fe\u5f0f\u6bd4\u8f83\uff0c\u5141\u8bb8\u5728\u4e00\u4e2a\u8868\u8fbe\u5f0f\u4e2d\u8fde\u7eed\u4f7f\u7528\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u3002\u8fd9\u79cd\u6bd4\u8f83\u673a\u5236\u66f4\u52a0\u76f4\u89c2\u548c\u8bfb\u5199\u65b9\u4fbf\u3002\u4f8b\u5982\uff0c\u5728\u6bd4\u8f83\u4e09\u4e2a\u503ca<\/code>\u3001b<\/code>\u548cc<\/code>\u65f6\uff0c\u53ef\u4ee5\u5199\u6210a < b < c<\/code>\uff0c\u800cPython\u4f1a\u81ea\u52a8\u6309\u7167a < b and b < c<\/code>\u7684\u903b\u8f91\u8fd0\u7b97\u6765\u89e3\u91ca\u548c\u6267\u884c\u3002<\/p>\n<\/p>\n

\u4e3e\u4f8b\u8bf4\u660e<\/h4>\n<\/p>\n

\u5047\u8bbe\u6709\u4e00\u6bb5\u4ee3\u78011 < x < 3<\/code>\u6765\u8bc4\u4f30\u53d8\u91cfx<\/code>\u7684\u503c\u3002Python\u5b9e\u9645\u4e0a\u4f1a\u4ece\u5de6\u5230\u53f3\u5730\u89e3\u6790\u8fd9\u4e2a\u8868\u8fbe\u5f0f\uff0c\u5c06\u5176\u5206\u89e3\u62101 < x<\/code>\u548cx < 3<\/code>\u4e24\u90e8\u5206\uff0c\u5e76\u901a\u8fc7\u5e03\u5c14\u903b\u8f91\u8fd0\u7b97\u7b26and<\/code>\u6765\u8fde\u63a5\u3002\u5982\u679cx<\/code>\u7684\u503c\u4e3a2\uff0c\u90a3\u4e481 < 2<\/code>\u8ba1\u7b97\u7ed3\u679c\u4e3aTrue\uff0c2 < 3<\/code>\u4e5f\u4e3aTrue\uff0c\u6700\u7ec8\u6839\u636eand<\/code>\u8fd0\u7b97\u7b26\uff0c\u6574\u4e2a\u8868\u8fbe\u5f0f\u7684\u7ed3\u679c\u662fTrue\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u5e03\u5c14\u903b\u8f91\u7684\u5e94\u7528<\/h3>\n<\/p>\n

\u5f53\u4f7f\u7528\u94fe\u5f0f\u6bd4\u8f83\u65f6\uff0c\u6700\u7ec8\u7684\u5e03\u5c14\u903b\u8f91\u51b3\u5b9a\u4e86\u8868\u8fbe\u5f0f\u7684\u771f\u5047\u3002\u5982\u524d\u6240\u8ff0\uff0c\u94fe\u5f0f\u6bd4\u8f83\u53ef\u4ee5\u5f52\u7ed3\u4e3a\u591a\u4e2a\u5e03\u5c14\u8868\u8fbe\u5f0f\u548c\u903b\u8f91\u8fd0\u7b97\u7b26\u7684\u7ec4\u5408\u3002\u53ea\u6709\u5f53\u6240\u6709\u5355\u72ec\u7684\u6bd4\u8f83\u90fd\u4e3aTrue\u65f6\uff0c\u6574\u4e2a\u8868\u8fbe\u5f0f\u624d\u4f1a\u662fTrue\u3002\u5982\u679c\u6709\u4efb\u4f55\u4e00\u4e2a\u6bd4\u8f83\u4e3aFalse\uff0c\u6574\u4e2a\u8868\u8fbe\u5f0f\u5c31\u4f1a\u662fFalse\u3002<\/p>\n<\/p>\n

Python\u5728\u5e03\u5c14\u903b\u8f91\u7684\u5904\u7406\u4e2d\u4f7f\u7528\u77ed\u8def\u6c42\u503c\uff08Short-circuit evaluation\uff09\uff0c\u5373\u4e00\u65e6\u786e\u5b9a\u6574\u4e2a\u903b\u8f91\u8868\u8fbe\u5f0f\u7684\u503c\uff0c\u5219\u4e0d\u4f1a\u8fdb\u4e00\u6b65\u8bc4\u4f30\u5269\u4f59\u7684\u90e8\u5206\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8868\u8fbe\u5f0f1 < x and x < 3<\/code>\u4e2d\uff0c\u7b2c\u4e00\u4e2a\u6bd4\u8f831 < x<\/code>\u7684\u7ed3\u679c\u662fFalse\uff0c\u5219Python\u77e5\u9053\u6574\u4e2a\u8868\u8fbe\u5f0f\u4e0d\u53ef\u80fd\u4e3aTrue\uff0c\u56e0\u6b64\u5b83\u5c06\u4e0d\u518d\u8ba1\u7b97x < 3<\/code>\u3002<\/p>\n<\/p>\n

\u56db\u3001\u590d\u6742\u8868\u8fbe\u5f0f\u7684\u89e3\u6790<\/h3>\n<\/p>\n

\u5728\u5904\u7406\u5305\u542b\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u7684\u590d\u6742\u8868\u8fbe\u5f0f\u65f6\uff0c\u5fc5\u987b\u5c0f\u5fc3\u8c28\u614e\u3002\u5efa\u8bae\u5c06\u590d\u6742\u8868\u8fbe\u5f0f\u5206\u89e3\u4e3a\u66f4\u5c0f\u7684\u90e8\u5206\uff0c\u5e76\u4f7f\u7528\u62ec\u53f7\u6765\u660e\u786e\u6bd4\u8f83\u7684\u987a\u5e8f\u3002\u8fd9\u4e0d\u4ec5\u6709\u52a9\u4e8e\u907f\u514d\u6f5c\u5728\u7684\u903b\u8f91\u9519\u8bef\uff0c\u8fd8\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n

\u793a\u8303\u5206\u89e3<\/h4>\n<\/p>\n

\u8003\u8651\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u5173\u7cfb\u548c\u7b97\u672f\u8fd0\u7b97\u7b26\u7684\u8868\u8fbe\u5f0f\uff1aa + b > c - d<\/code>\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u9996\u5148\u6267\u884c\u7b97\u672f\u8fd0\u7b97a + b<\/code>\u548cc - d<\/code>\uff0c\u56e0\u4e3a\u7b97\u672f\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7\u9ad8\u4e8e\u5173\u7cfb\u8fd0\u7b97\u7b26\u3002\u7136\u540e\uff0c\u5c06\u8fd9\u4e24\u4e2a\u7b97\u672f\u7ed3\u679c\u8fdb\u884c\u5173\u7cfb\u6bd4\u8f83\u3002\u901a\u8fc7\u5206\u89e3\u7b97\u5f0f\uff0c\u6211\u4eec\u907f\u514d\u4e86\u9519\u8bef\u5730\u5bf9\u539f\u59cb\u503c\u8fdb\u884c\u5173\u7cfb\u6bd4\u8f83\uff0c\u786e\u4fdd\u4e86\u6b63\u786e\u6027\u3002<\/p>\n<\/p>\n

\u603b\u7ed3<\/h3>\n<\/p>\n

\u5f53Python\u4e2d\u7684\u5173\u7cfb\u8fd0\u7b97\u7b26\u540c\u65f6\u51fa\u73b0\u5728\u4e00\u4e2a\u7b97\u5f0f\u4e2d\u65f6\uff0c\u5b83\u4eec\u5c06\u6839\u636e\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7\u548c\u5e03\u5c14\u903b\u8f91\u8fdb\u884c\u8bc4\u4f30\u3002\u5173\u7cfb\u8fd0\u7b97\u7b26\u7684\u94fe\u5f0f\u6bd4\u8f83\u673a\u5236\u63d0\u4f9b\u4e86\u4e00\u79cd\u76f4\u89c2\u548c\u9ad8\u6548\u7684\u65b9\u6cd5\u6765\u8868\u8fbe\u590d\u6742\u7684\u903b\u8f91\u6761\u4ef6\u3002\u8fd9\u4e9b\u673a\u5236\u7ed3\u5408\uff0c\u5728\u786e\u4fdd\u6bcf\u4e00\u6b65\u6bd4\u8f83\u5747\u4ee5\u6b63\u786e\u7684\u903b\u8f91\u987a\u5e8f\u8fdb\u884c\u65f6\uff0c\u786e\u4fdd\u4e86\u6700\u7ec8\u7ed3\u679c\u7684\u51c6\u786e\u6027\u3002\u5728\u7f16\u5199\u5305\u542b\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u7684\u8868\u8fbe\u5f0f\u65f6\uff0c\u59cb\u7ec8\u8981\u8bb0\u4f4f\u7b97\u672f\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7\uff0c\u5e76\u4f7f\u7528\u5e03\u5c14\u903b\u8f91\u6765\u7406\u89e3\u6574\u4e2a\u8868\u8fbe\u5f0f\u7684\u771f\u5047\u3002\u901a\u8fc7\u8fd9\u6837\u7684\u5b9e\u8df5\uff0c\u53ef\u4ee5\u786e\u4fdd\u8fd9\u4e9b\u8868\u8fbe\u5f0f\u7684\u610f\u56fe\u6e05\u6670\u5e76\u4e14\u903b\u8f91\u4e0a\u6b63\u786e\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

1. \u5982\u4f55\u5728Python\u4e2d\u8fdb\u884c\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u7684\u6bd4\u8f83\uff1f<\/strong><\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u540c\u65f6\u51fa\u73b0\u5728\u4e00\u4e2a\u7b97\u5f0f\u4e2d\u8fdb\u884c\u6bd4\u8f83\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u5927\u4e8e\uff08>\uff09\u3001\u5c0f\u4e8e\uff08<\uff09\u3001\u5927\u4e8e\u7b49\u4e8e\uff08>=\uff09\u3001\u5c0f\u4e8e\u7b49\u4e8e\uff08<=\uff09\u3001\u7b49\u4e8e\uff08==\uff09\u548c\u4e0d\u7b49\u4e8e\uff08!=\uff09\u7b49\u5173\u7cfb\u8fd0\u7b97\u7b26\u3002\u53ef\u4ee5\u4f7f\u7528\u62ec\u53f7\u6765\u7ec4\u5408\u8fd9\u4e9b\u8fd0\u7b97\u7b26\uff0c\u4ee5\u6ee1\u8db3\u6240\u9700\u7684\u6bd4\u8f83\u6761\u4ef6\u3002\u4f8b\u5982\uff1a(a > b) and (c < d)<\/code>\uff0c\u8fd9\u4e2a\u8868\u8fbe\u5f0f\u5c06\u4f1a\u68c0\u67e5 a<\/code> \u662f\u5426\u5927\u4e8e b<\/code>\uff0c\u540c\u65f6 c<\/code> \u662f\u5426\u5c0f\u4e8e d<\/code>\u3002<\/p>\n

2. \u5728Python\u4e2d\uff0c\u5982\u4f55\u6bd4\u8f83\u591a\u4e2a\u503c\u4f7f\u7528\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u65f6\u7684\u4f18\u5148\u7ea7\u95ee\u9898\uff1f<\/strong><\/p>\n

\u5728Python\u4e2d\uff0c\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u540c\u65f6\u51fa\u73b0\u65f6\uff0c\u4f1a\u4f9d\u7167\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7\u8fdb\u884c\u6bd4\u8f83\u3002\u5982\u679c\u591a\u4e2a\u8fd0\u7b97\u7b26\u5177\u6709\u76f8\u540c\u7684\u4f18\u5148\u7ea7\uff0c\u90a3\u4e48\u4f1a\u6309\u7167\u4ece\u5de6\u5230\u53f3\u7684\u987a\u5e8f\u8fdb\u884c\u6bd4\u8f83\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u8868\u8fbe\u5f0f a > b < c<\/code>\uff0c\u90a3\u4e48\u9996\u5148\u4f1a\u8fdb\u884c a > b<\/code> \u7684\u6bd4\u8f83\uff0c\u7136\u540e\u5c06\u6bd4\u8f83\u7ed3\u679c\u5e94\u7528\u4e8e b < c<\/code> \u7684\u6bd4\u8f83\u3002<\/p>\n

3. \u5728Python\u4e2d\uff0c\u5982\u4f55\u6bd4\u8f83\u591a\u4e2a\u503c\u4f7f\u7528\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u65f6\u7684\u7ed3\u679c\u662f\u5426\u4e3a\u771f\u7684\u95ee\u9898\uff1f<\/strong><\/p>\n

\u5728Python\u4e2d\uff0c\u591a\u4e2a\u5173\u7cfb\u8fd0\u7b97\u7b26\u540c\u65f6\u51fa\u73b0\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5e03\u5c14\u8fd0\u7b97\u7b26\uff08\u5982and<\/code>\u3001or<\/code>\uff09\u6765\u5224\u65ad\u6574\u4e2a\u8868\u8fbe\u5f0f\u7684\u7ed3\u679c\u662f\u5426\u4e3a\u771f\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u8868\u8fbe\u5f0f (a > b) and (c < d)<\/code>\uff0c\u5982\u679c a<\/code> \u5927\u4e8e b<\/code> \u4e14 c<\/code> \u5c0f\u4e8e d<\/code>\uff0c\u5219\u6574\u4e2a\u8868\u8fbe\u5f0f\u7684\u7ed3\u679c\u5c06\u4e3a\u771f\uff1b\u5426\u5219\uff0c\u7ed3\u679c\u5c06\u4e3a\u5047\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u7684\u5173\u7cfb\u8fd0\u7b97\u7b26\u540c\u65f6\u51fa\u73b0\u5728\u4e00\u4e2a\u7b97\u5f0f\u4e2d\u65f6\uff0c\u5b83\u4eec\u5c06\u6839\u636e\u4f18\u5148\u7ea7\u548c\u5173\u7cfb\u8fd0\u7b97\u7b26\u7684\u94fe\u5f0f\u6bd4\u8f83\u673a\u5236\u6765\u6bd4\u8f83\u5404\u4e2a\u5143\u7d20\u3002\u5728P […]","protected":false},"author":3,"featured_media":175806,"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\/175798"}],"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=175798"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/175798\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/175806"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=175798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=175798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=175798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}