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GUK0

#1 Created at ... [Delete] [Delete and Lock User] 
    @property
    def birth(self):
        return self._birth

    @birth.setter
    def birth(self, value):
        self._birth = value

用property定义的属性一定要是私有的吗？ 似乎必须要以 或者 _ 开头

西子note

#2 Created at ... [Delete] [Delete and Lock User]

我没用下划线试了下，会报错“RecursionError: maximum recursion depth exceeded”。

10KK

#3 Created at ... [Delete] [Delete and Lock User]

不用啊，这里用_开头是为了和定义的birth方法区分开，完全可以把_birth用其他名字代替，只要不和birth冲突就行了

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