高封装的property方法

最新推荐文章于 2023-06-07 09:15:52 发布

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最新推荐文章于 2023-06-07 09:15:52 发布

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原文链接：http://www.cnblogs.com/wf-skylark/p/9157156.html

本文介绍了一个使用Python实现的简单Person类，该类通过@property装饰器实现了对年龄属性的安全封装。具体而言，通过设置年龄的getter和setter方法，确保了年龄属性的有效性和数据安全性。

class Person():
    def __init__(self):
        self.__age = 0

    def set_age(self, age):
        if age < 0 or age > 200:
            self.__age = 0
        else:
            self.__age = age

    def get_age(self):
        return self.__age

    a = property(get_age, set_age)

    # def __init__(self, fget=None, fset=None, fdel=None, doc=None):  # known special case of property.__init__
    """

    property(fget=None, fset=None, fdel=None, doc=None) -> property attribute

    fget is a function to be used for getting an attribute value, and likewise
    fset is a function for setting, and fdel a function for del'ing, an
    attribute.  Typical use is to define a managed attribute x:

    """

p = Person()
p.a = 999
print(p.a)

转载于:https://www.cnblogs.com/wf-skylark/p/9157156.html