{"id":1161473,"date":"2025-01-13T19:16:50","date_gmt":"2025-01-13T11:16:50","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1161473.html"},"modified":"2025-01-13T19:16:53","modified_gmt":"2025-01-13T11:16:53","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e7%a7%81%e6%9c%89%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1161473.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u5b9e\u73b0\u79c1\u6709\u51fd\u6570"},"content":{"rendered":"

\"python\u4e2d\u5982\u4f55\u5b9e\u73b0\u79c1\u6709\u51fd\u6570\"<\/p>\n

\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728\u51fd\u6570\u540d\u524d\u52a0\u4e0a\u53cc\u4e0b\u5212\u7ebf\uff08_\uff09\u6765\u5b9a\u4e49\u79c1\u6709\u51fd\u6570\u3001\u901a\u8fc7\u5355\u4e0b\u5212\u7ebf\uff08<\/em>\uff09\u6765\u5b9a\u4e49\u53d7\u4fdd\u62a4\u51fd\u6570\u3001\u4f7f\u7528\u7c7b\u548c\u547d\u540d\u7ea6\u5b9a\u6765\u589e\u5f3a\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u3001\u9075\u5faa\u547d\u540d\u7ea6\u5b9a\u6765\u51cf\u5c11\u5bf9\u79c1\u6709\u51fd\u6570\u7684\u8bbf\u95ee\u3002\u8fd9\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u4f7f\u51fd\u6570\u5728\u7c7b\u7684\u5916\u90e8\u4e0d\u53ef\u89c1\u6216\u8005\u4e0d\u5efa\u8bae\u88ab\u8bbf\u95ee\u3002\u4ee5\u4e0b\u662f\u5bf9\u5176\u4e2d\u4e00\u70b9\u7684\u8be6\u7ec6\u63cf\u8ff0\uff1a<\/p>\n<\/p>\n

\u4f7f\u7528\u7c7b\u548c\u547d\u540d\u7ea6\u5b9a\u6765\u589e\u5f3a\u4ee3\u7801\u7684\u5c01\u88c5\u6027<\/strong>\u3002\u5728Python\u4e2d\uff0c\u867d\u7136\u6ca1\u6709\u771f\u6b63\u7684\u79c1\u6709\u65b9\u6cd5\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u5728\u7c7b\u4e2d\u5b9a\u4e49\u65b9\u6cd5\u5e76\u4f7f\u7528\u53cc\u4e0b\u5212\u7ebf\u547d\u540d\u6765\u6a21\u62df\u79c1\u6709\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u53ef\u4ee5\u4f7f\u65b9\u6cd5\u5728\u7c7b\u7684\u5916\u90e8\u4e0d\u53ef\u89c1\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u547d\u540d\u7ea6\u5b9a\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u8be5\u88ab\u5916\u90e8\u8bbf\u95ee\u3002\u5373\u4f7f\u5728\u7ee7\u627f\u7c7b\u4e2d\u4e5f\u65e0\u6cd5\u76f4\u63a5\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u63a2\u8ba8Python\u4e2d\u5b9e\u73b0\u79c1\u6709\u51fd\u6570\u7684\u5404\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u901a\u8fc7\u53cc\u4e0b\u5212\u7ebf\u547d\u540d\u6765\u5b9a\u4e49\u79c1\u6709\u51fd\u6570<\/h2>\n<\/p>\n

1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n

\u5728Python\u4e2d\uff0c\u53cc\u4e0b\u5212\u7ebf\uff08__\uff09\u662f\u4e00\u79cd\u547d\u540d\u7ea6\u5b9a\uff0c\u7528\u4e8e\u5b9a\u4e49\u7c7b\u7684\u79c1\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u3002Python\u4f1a\u5bf9\u8fd9\u4e9b\u5c5e\u6027\u548c\u65b9\u6cd5\u8fdb\u884c\u540d\u79f0\u6539\u5199\uff0c\u4f7f\u5b83\u4eec\u5728\u7c7b\u7684\u5916\u90e8\u4e0d\u53ef\u89c1\uff0c\u4ece\u800c\u5b9e\u73b0\u5c01\u88c5\u3002<\/p>\n<\/p>\n

2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n

class MyClass:<\/p>\n
    def __init__(self):<\/p>\n
        self.__private_method()<\/p>\n
    def __private_method(self):<\/p>\n
        print("This is a private method")<\/p>\n
    def public_method(self):<\/p>\n
        self.__private_method()<\/p>\n
obj = MyClass()<\/p>\n
obj.public_method()  # \u8fd9\u5c06\u8c03\u7528\u79c1\u6709\u65b9\u6cd5<\/p>\n
obj.__private_method()  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c__private_method<\/code>\u88ab\u5b9a\u4e49\u4e3a\u79c1\u6709\u65b9\u6cd5\uff0c\u53ea\u6709\u7c7b\u5185\u90e8\u53ef\u4ee5\u8bbf\u95ee\u5b83\u3002\u5916\u90e8\u4ee3\u7801\u5c1d\u8bd5\u8bbf\u95ee\u8be5\u65b9\u6cd5\u5c06\u5f15\u53d1AttributeError<\/code>\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u901a\u8fc7\u5355\u4e0b\u5212\u7ebf\u547d\u540d\u6765\u5b9a\u4e49\u53d7\u4fdd\u62a4\u51fd\u6570<\/h2>\n<\/p>\n
1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n
\u5355\u4e0b\u5212\u7ebf\uff08_\uff09\u662f\u4e00\u79cd\u547d\u540d\u7ea6\u5b9a\uff0c\u7528\u4e8e\u5b9a\u4e49\u53d7\u4fdd\u62a4\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u5b83\u4eec\u53ef\u4ee5\u5728\u7c7b\u7684\u5916\u90e8\u8bbf\u95ee\uff0c\u4f46\u6839\u636e\u7ea6\u5b9a\uff0c\u5f00\u53d1\u8005\u4e0d\u5e94\u5728\u7c7b\u7684\u5916\u90e8\u76f4\u63a5\u8bbf\u95ee\u5b83\u4eec\u3002<\/p>\n<\/p>\n
2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n
class MyClass:<\/p>\n
    def _protected_method(self):<\/p>\n
        print("This is a protected method")<\/p>\n
obj = MyClass()<\/p>\n
obj._protected_method()  # \u867d\u7136\u53ef\u4ee5\u8bbf\u95ee\uff0c\u4f46\u4e0d\u5efa\u8bae<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c_protected_method<\/code>\u88ab\u5b9a\u4e49\u4e3a\u53d7\u4fdd\u62a4\u65b9\u6cd5\u3002\u867d\u7136\u53ef\u4ee5\u5728\u7c7b\u7684\u5916\u90e8\u8bbf\u95ee\u5b83\uff0c\u4f46\u6839\u636e\u547d\u540d\u7ea6\u5b9a\uff0c\u4e0d\u5efa\u8bae\u8fd9\u6837\u505a\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528\u7c7b\u548c\u547d\u540d\u7ea6\u5b9a\u6765\u589e\u5f3a\u4ee3\u7801\u7684\u5c01\u88c5\u6027<\/h2>\n<\/p>\n
1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n
\u4f7f\u7528\u7c7b\u548c\u547d\u540d\u7ea6\u5b9a\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u5b89\u5168\u6027\u3002\u901a\u8fc7\u5b9a\u4e49\u7c7b\u7684\u79c1\u6709\u548c\u53d7\u4fdd\u62a4\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u5728\u7c7b\u7684\u5916\u90e8\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n
class MyClass:<\/p>\n
    def __init__(self):<\/p>\n
        self.__private_method()<\/p>\n
        self._protected_method()<\/p>\n
    def __private_method(self):<\/p>\n
        print("This is a private method")<\/p>\n
    def _protected_method(self):<\/p>\n
        print("This is a protected method")<\/p>\n
    def public_method(self):<\/p>\n
        self.__private_method()<\/p>\n
        self._protected_method()<\/p>\n
obj = MyClass()<\/p>\n
obj.public_method()<\/p>\n
obj.__private_method()  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
obj._protected_method()  # \u867d\u7136\u53ef\u4ee5\u8bbf\u95ee\uff0c\u4f46\u4e0d\u5efa\u8bae<\/strong><\/h2>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u5b9a\u4e49\u79c1\u6709\u548c\u53d7\u4fdd\u62a4\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u5b89\u5168\u6027\u3002\u5f00\u53d1\u8005\u53ef\u4ee5\u4f7f\u7528\u547d\u540d\u7ea6\u5b9a\u6765\u63d0\u9192\u81ea\u5df1\u548c\u5176\u4ed6\u4eba\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u5728\u7c7b\u7684\u5916\u90e8\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
\u56db\u3001\u4f7f\u7528\u5c5e\u6027\u88c5\u9970\u5668\u6765\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5<\/h2>\n<\/p>\n
1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n
\u5c5e\u6027\u88c5\u9970\u5668\uff08property\uff09\u53ef\u4ee5\u7528\u4e8e\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\uff0c\u5e76\u5728\u7c7b\u7684\u5916\u90e8\u901a\u8fc7\u5c5e\u6027\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u5c01\u88c5\u6027\u3002<\/p>\n<\/p>\n
2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n
class MyClass:<\/p>\n
    def __init__(self):<\/p>\n
        self.__private_method = self.__hidden_method<\/p>\n
    @property<\/p>\n
    def __hidden_method(self):<\/p>\n
        print("This is a private method")<\/p>\n
obj = MyClass()<\/p>\n
obj.__hidden_method  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
obj._MyClass__hidden_method  # \u8fd9\u5c06\u8c03\u7528\u79c1\u6709\u65b9\u6cd5<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u4f7f\u7528\u5c5e\u6027\u88c5\u9970\u5668\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\uff0c\u5e76\u901a\u8fc7\u5c5e\u6027\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\u3002\u867d\u7136\u53ef\u4ee5\u5728\u7c7b\u7684\u5916\u90e8\u8bbf\u95ee\u79c1\u6709\u65b9\u6cd5\uff0c\u4f46\u901a\u8fc7\u547d\u540d\u7ea6\u5b9a\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u4f7f\u7528\u7c7b\u65b9\u6cd5\u548c\u9759\u6001\u65b9\u6cd5\u6765\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5<\/h2>\n<\/p>\n
1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n
\u7c7b\u65b9\u6cd5\uff08classmethod\uff09\u548c\u9759\u6001\u65b9\u6cd5\uff08staticmethod\uff09\u53ef\u4ee5\u7528\u4e8e\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\uff0c\u5e76\u5728\u7c7b\u7684\u5185\u90e8\u548c\u5916\u90e8\u901a\u8fc7\u7c7b\u540d\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n
class MyClass:<\/p>\n
    def __init__(self):<\/p>\n
        self.__private_method()<\/p>\n
    @classmethod<\/p>\n
    def __private_method(cls):<\/p>\n
        print("This is a private class method")<\/p>\n
    @staticmethod<\/p>\n
    def __private_static_method():<\/p>\n
        print("This is a private static method")<\/p>\n
obj = MyClass()<\/p>\n
MyClass.__private_method()  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
MyClass.__private_static_method()  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
MyClass._MyClass__private_method()  # \u8fd9\u5c06\u8c03\u7528\u79c1\u6709\u7c7b\u65b9\u6cd5<\/p>\n
MyClass._MyClass__private_static_method()  # \u8fd9\u5c06\u8c03\u7528\u79c1\u6709\u9759\u6001\u65b9\u6cd5<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u5b9a\u4e49\u79c1\u6709\u7c7b\u65b9\u6cd5\u548c\u79c1\u6709\u9759\u6001\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002\u867d\u7136\u53ef\u4ee5\u5728\u7c7b\u7684\u5916\u90e8\u901a\u8fc7\u7c7b\u540d\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f46\u901a\u8fc7\u547d\u540d\u7ea6\u5b9a\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
\u516d\u3001\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\u6765\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5<\/h2>\n<\/p>\n
1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n
\u547d\u540d\u7a7a\u95f4\u53ef\u4ee5\u7528\u4e8e\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\uff0c\u5e76\u901a\u8fc7\u547d\u540d\u7a7a\u95f4\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n
class MyClass:<\/p>\n
    class __PrivateMethods:<\/p>\n
        @staticmethod<\/p>\n
        def __private_static_method():<\/p>\n
            print("This is a private static method")<\/p>\n
    def __init__(self):<\/p>\n
        self.__private_method = self.__PrivateMethods.__private_static_method<\/p>\n
obj = MyClass()<\/p>\n
obj.__private_method()  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
obj._MyClass__PrivateMethods__private_static_method()  # \u8fd9\u5c06\u8c03\u7528\u79c1\u6709\u9759\u6001\u65b9\u6cd5<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\u7684\u547d\u540d\u7a7a\u95f4\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002\u867d\u7136\u53ef\u4ee5\u5728\u7c7b\u7684\u5916\u90e8\u901a\u8fc7\u547d\u540d\u7a7a\u95f4\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f46\u901a\u8fc7\u547d\u540d\u7ea6\u5b9a\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u4f7f\u7528\u88c5\u9970\u5668\u6765\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5<\/h2>\n<\/p>\n
1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n
\u88c5\u9970\u5668\u53ef\u4ee5\u7528\u4e8e\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\uff0c\u5e76\u5728\u7c7b\u7684\u5185\u90e8\u901a\u8fc7\u88c5\u9970\u5668\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n
def private_method_decorator(func):<\/p>\n
    def wrapper(*args, kwargs):<\/p>\n
        print("This is a private method")<\/p>\n
        return func(*args, kwargs)<\/p>\n
    return wrapper<\/p>\n
class MyClass:<\/p>\n
    @private_method_decorator<\/p>\n
    def __private_method(self):<\/p>\n
        print("Calling private method")<\/p>\n
obj = MyClass()<\/p>\n
obj.__private_method()  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
obj._MyClass__private_method()  # \u8fd9\u5c06\u8c03\u7528\u79c1\u6709\u65b9\u6cd5<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\u7684\u88c5\u9970\u5668\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002\u867d\u7136\u53ef\u4ee5\u5728\u7c7b\u7684\u5916\u90e8\u901a\u8fc7\u88c5\u9970\u5668\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f46\u901a\u8fc7\u547d\u540d\u7ea6\u5b9a\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
\u516b\u3001\u4f7f\u7528\u5143\u7c7b\u6765\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5<\/h2>\n<\/p>\n
1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n
\u5143\u7c7b\u53ef\u4ee5\u7528\u4e8e\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\uff0c\u5e76\u5728\u7c7b\u7684\u5185\u90e8\u901a\u8fc7\u5143\u7c7b\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n
class PrivateMethodMeta(type):<\/p>\n
    def __new__(cls, name, bases, dct):<\/p>\n
        dct['__private_method'] = cls.__private_method<\/p>\n
        return super().__new__(cls, name, bases, dct)<\/p>\n
    @staticmethod<\/p>\n
    def __private_method():<\/p>\n
        print("This is a private method")<\/p>\n
class MyClass(metaclass=PrivateMethodMeta):<\/p>\n
    def __init__(self):<\/p>\n
        self.__private_method()<\/p>\n
obj = MyClass()<\/p>\n
obj.__private_method()  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
obj._MyClass__private_method()  # \u8fd9\u5c06\u8c03\u7528\u79c1\u6709\u65b9\u6cd5<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\u7684\u5143\u7c7b\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002\u867d\u7136\u53ef\u4ee5\u5728\u7c7b\u7684\u5916\u90e8\u901a\u8fc7\u5143\u7c7b\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f46\u901a\u8fc7\u547d\u540d\u7ea6\u5b9a\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
\u4e5d\u3001\u4f7f\u7528\u95ed\u5305\u6765\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5<\/h2>\n<\/p>\n
1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n
\u95ed\u5305\u53ef\u4ee5\u7528\u4e8e\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\uff0c\u5e76\u5728\u7c7b\u7684\u5185\u90e8\u901a\u8fc7\u95ed\u5305\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n
class MyClass:<\/p>\n
    def __init__(self):<\/p>\n
        def __private_method():<\/p>\n
            print("This is a private method")<\/p>\n
        self.__private_method = __private_method<\/p>\n
        self.__private_method()<\/p>\n
obj = MyClass()<\/p>\n
obj.__private_method()  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
obj._MyClass__private_method()  # \u8fd9\u5c06\u8c03\u7528\u79c1\u6709\u65b9\u6cd5<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\u7684\u95ed\u5305\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002\u867d\u7136\u53ef\u4ee5\u5728\u7c7b\u7684\u5916\u90e8\u901a\u8fc7\u95ed\u5305\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f46\u901a\u8fc7\u547d\u540d\u7ea6\u5b9a\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
\u5341\u3001\u4f7f\u7528\u7c7b\u5c5e\u6027\u6765\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5<\/h2>\n<\/p>\n
1\u3001\u6982\u8ff0<\/h3>\n<\/p>\n
\u7c7b\u5c5e\u6027\u53ef\u4ee5\u7528\u4e8e\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\uff0c\u5e76\u5728\u7c7b\u7684\u5185\u90e8\u901a\u8fc7\u7c7b\u5c5e\u6027\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
2\u3001\u793a\u4f8b\u4ee3\u7801<\/h3>\n<\/p>\n
class MyClass:<\/p>\n
    __private_method = lambda: print("This is a private method")<\/p>\n
    def __init__(self):<\/p>\n
        self.__private_method()<\/p>\n
obj = MyClass()<\/p>\n
obj.__private_method()  # \u8fd9\u5c06\u5f15\u53d1AttributeError<\/strong><\/h2>\n
obj._MyClass__private_method()  # \u8fd9\u5c06\u8c03\u7528\u79c1\u6709\u65b9\u6cd5<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u89e3\u6790<\/h3>\n<\/p>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7\u5b9a\u4e49\u79c1\u6709\u65b9\u6cd5\u7684\u7c7b\u5c5e\u6027\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002\u867d\u7136\u53ef\u4ee5\u5728\u7c7b\u7684\u5916\u90e8\u901a\u8fc7\u7c7b\u5c5e\u6027\u8bbf\u95ee\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f46\u901a\u8fc7\u547d\u540d\u7ea6\u5b9a\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u5e94\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
\u603b\u7ed3<\/h2>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u901a\u8fc7\u53cc\u4e0b\u5212\u7ebf\u547d\u540d\u3001\u5355\u4e0b\u5212\u7ebf\u547d\u540d\u3001\u4f7f\u7528\u7c7b\u548c\u547d\u540d\u7ea6\u5b9a\u3001\u5c5e\u6027\u88c5\u9970\u5668\u3001\u7c7b\u65b9\u6cd5\u548c\u9759\u6001\u65b9\u6cd5\u3001\u547d\u540d\u7a7a\u95f4\u3001\u88c5\u9970\u5668\u3001\u5143\u7c7b\u3001\u95ed\u5305\u548c\u7c7b\u5c5e\u6027\u7b49\u591a\u79cd\u65b9\u6cd5\u6765\u5b9a\u4e49\u79c1\u6709\u51fd\u6570\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u4ee3\u7801\u7684\u5c01\u88c5\u6027\u548c\u53ef\u8bfb\u6027\u3002\u8fd9\u4e9b\u65b9\u6cd5\u4e0d\u4ec5\u53ef\u4ee5\u4f7f\u51fd\u6570\u5728\u7c7b\u7684\u5916\u90e8\u4e0d\u53ef\u89c1\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u547d\u540d\u7ea6\u5b9a\u63d0\u9192\u5f00\u53d1\u8005\u8fd9\u4e9b\u51fd\u6570\u4e0d\u5e94\u8be5\u88ab\u5916\u90e8\u8bbf\u95ee\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u5b89\u5168\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u5b9a\u4e49\u79c1\u6709\u51fd\u6570\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u79c1\u6709\u51fd\u6570\u901a\u5e38\u662f\u901a\u8fc7\u5728\u51fd\u6570\u540d\u524d\u6dfb\u52a0\u4e00\u4e2a\u4e0b\u5212\u7ebf\uff08_\uff09\u6216\u53cc\u4e0b\u5212\u7ebf\uff08__\uff09\u6765\u5b9e\u73b0\u7684\u3002\u5355\u4e0b\u5212\u7ebf\u8868\u793a\u8be5\u51fd\u6570\u662f\u6a21\u5757\u5185\u90e8\u4f7f\u7528\u7684\uff0c\u800c\u53cc\u4e0b\u5212\u7ebf\u4f1a\u8fdb\u884c\u540d\u79f0\u91cd\u6574\uff0c\u589e\u5f3a\u5176\u79c1\u5bc6\u6027\u3002\u8fd9\u79cd\u505a\u6cd5\u5e76\u4e0d\u662f\u771f\u6b63\u7684\u79c1\u6709\uff0c\u800c\u662f\u4e00\u79cd\u7ea6\u5b9a\uff0c\u63d0\u9192\u5176\u4ed6\u5f00\u53d1\u8005\u4e0d\u5e94\u5f53\u76f4\u63a5\u8c03\u7528\u8fd9\u4e9b\u51fd\u6570\u3002<\/p>\n
\u79c1\u6709\u51fd\u6570\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f<\/strong>
\u79c1\u6709\u51fd\u6570\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u5c01\u88c5\u548c\u9690\u85cf\u5b9e\u73b0\u7ec6\u8282\u3002\u901a\u8fc7\u5c06\u4e00\u4e9b\u8f85\u52a9\u529f\u80fd\u6807\u8bb0\u4e3a\u79c1\u6709\uff0c\u53ef\u4ee5\u9632\u6b62\u5916\u90e8\u4ee3\u7801\u76f4\u63a5\u4f9d\u8d56\u8fd9\u4e9b\u51fd\u6570\uff0c\u4ece\u800c\u63d0\u5347\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8bfb\u6027\u3002\u79c1\u6709\u51fd\u6570\u901a\u5e38\u7528\u4e8e\u7c7b\u5185\u90e8\uff0c\u5e2e\u52a9\u5b9e\u73b0\u590d\u6742\u7684\u903b\u8f91\uff0c\u800c\u4e0d\u66b4\u9732\u7ed9\u7c7b\u7684\u7528\u6237\u3002<\/p>\n
\u5982\u4f55\u8bbf\u95eePython\u4e2d\u7684\u79c1\u6709\u51fd\u6570\uff1f<\/strong>
\u5c3d\u7ba1\u79c1\u6709\u51fd\u6570\u7684\u8bbe\u8ba1\u76ee\u7684\u662f\u4e0d\u88ab\u5916\u90e8\u8bbf\u95ee\uff0c\u4f46\u5728Python\u4e2d\u5e76\u6ca1\u6709\u771f\u6b63\u7684\u79c1\u6709\u673a\u5236\u3002\u5982\u679c\u786e\u5b9e\u9700\u8981\u8bbf\u95ee\u79c1\u6709\u51fd\u6570\uff0c\u53ef\u4ee5\u901a\u8fc7\u7c7b\u7684\u5b9e\u4f8b\u6765\u8bbf\u95ee\uff0c\u4f8b\u5982\u4f7f\u7528_ClassName__functionName<\/code>\u7684\u65b9\u5f0f\u3002\u9700\u8981\u6ce8\u610f\uff0c\u8fd9\u79cd\u505a\u6cd5\u5e76\u4e0d\u63a8\u8350\uff0c\u56e0\u4e3a\u5b83\u8fdd\u53cd\u4e86\u5c01\u88c5\u7684\u539f\u5219\uff0c\u53ef\u80fd\u5bfc\u81f4\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u4e0b\u964d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5728\u51fd\u6570\u540d\u524d\u52a0\u4e0a\u53cc\u4e0b\u5212\u7ebf\uff08_\uff09\u6765\u5b9a\u4e49\u79c1\u6709\u51fd\u6570\u3001\u901a\u8fc7\u5355\u4e0b\u5212\u7ebf\uff08\uff09\u6765\u5b9a\u4e49\u53d7\u4fdd\u62a4\u51fd\u6570\u3001\u4f7f\u7528\u7c7b […]","protected":false},"author":3,"featured_media":1161476,"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\/1161473"}],"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=1161473"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1161473\/revisions"}],"predecessor-version":[{"id":1161477,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1161473\/revisions\/1161477"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1161476"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1161473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1161473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1161473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}