{"id":139884,"date":"2019-03-25T10:26:29","date_gmt":"2019-03-25T02:26:29","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=139884"},"modified":"2019-03-18T10:27:31","modified_gmt":"2019-03-18T02:27:31","slug":"class-static-method","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/class-static-method.html","title":{"rendered":"python\u4e2d\u7c7b\u65b9\u6cd5\u548c\u9759\u6001\u65b9\u6cd5\u533a\u522b"},"content":{"rendered":"

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\n\u800c\u5728Python\u4e2d\uff0c\u65b9\u6cd5\u5206\u4e3a\u4e09\u7c7b\u5b9e\u4f8b\u65b9\u6cd5\u3001\u7c7b\u65b9\u6cd5\u3001\u9759\u6001\u65b9\u6cd5\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

class Test(object):\r\ndef InstanceFun(self):\r\n    print(\"InstanceFun\");\r\n    print(self);\r\n\r\n\r\n@classmethod\r\ndef ClassFun(cls):\r\n    print(\"ClassFun\");\r\n    print(cls);\r\n\r\n\r\n@staticmethod\r\ndef StaticFun():\r\n    print(\"StaticFun\");\r\n    t = Test();\r\n    t.InstanceFun();\u3000\u3000\u3000\u3000\u3000\u3000\uff03 \u8f93\u51faInstanceFun\uff0c\u6253\u5370\u5bf9\u8c61\u5185\u5b58\u5730\u5740\u201c<__main__.Test object at 0x0293DCF0>\u201d\r\n    Test.ClassFun(); \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # \u8f93\u51faClassFun\uff0c\u6253\u5370\u7c7b\u4f4d\u7f6e\u00a0<class '__main__.Test'>\r\n    Test.StaticFun(); \u00a0 \u00a0 \u00a0 \u00a0 \u00a0# \u8f93\u51faStaticFun\r\n    t.StaticFun(); \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # \u8f93\u51faStaticFun\r\n    t.ClassFun(); \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0# \u8f93\u51faClassFun\uff0c\u6253\u5370\u7c7b\u4f4d\u7f6e\u00a0<class '__main__.Test'>\r\n    Test.InstanceFun(); \u00a0 \u00a0 \u00a0 \u00a0# \u9519\u8bef\uff0cTypeError: unbound method instanceFun() must be called with Test             instance as first argument\r\n    Test.InstanceFun(t); \u00a0 \u00a0 \u00a0 #\u00a0\u8f93\u51faInstanceFun\uff0c\u6253\u5370\u5bf9\u8c61\u5185\u5b58\u5730\u5740\u201c<__main__.Test object at 0x0293DCF0>\u201d\r\n    t.ClassFun(Test); \u00a0 \u00a0 \u00a0 \u00a0 \u00a0# \u9519\u8bef \u00a0 classFun() takes exactly 1 argument (2 given)\r\n<\/pre>\n

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\u6240\u4ee5\u903b\u8f91\u4e0a\u7c7b\u65b9\u6cd5\u5e94\u5f53\u53ea\u88ab\u7c7b\u8c03\u7528\uff0c\u5b9e\u4f8b\u65b9\u6cd5\u5b9e\u4f8b\u8c03\u7528\uff0c\u9759\u6001\u65b9\u6cd5\u4e24\u8005\u90fd\u80fd\u8c03\u7528\u3002\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u53c2\u6570\u4f20\u9012\u4e0a\u7684\u533a\u522b\uff0c\u5b9e\u4f8b\u65b9\u6cd5\u6084\u6084\u4f20\u9012\u7684\u662fself\u5f15\u7528\u4f5c\u4e3a\u53c2\u6570\uff0c\u800c\u7c7b\u65b9\u6cd5\u6084\u6084\u4f20\u9012\u7684\u662fcls\u5f15\u7528\u4f5c\u4e3a\u53c2\u6570\u3002
\nPython\u5b9e\u73b0\u4e86\u4e00\u5b9a\u7684\u7075\u6d3b\u6027\u4f7f\u5f97\u7c7b\u65b9\u6cd5\u548c\u9759\u6001\u65b9\u6cd5\uff0c\u90fd\u80fd\u591f\u88ab\u5b9e\u4f8b\u548c\u7c7b\u4e8c\u8005\u8c03\u7528<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

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