在python中使用属性的getter

这个 @property 函数上的decorator创建新的 property 对象并将修饰函数设置为getter。所以在 同一个班 , the @p.getter

class Foo(object):
    @property
    def p(self):
        return self._p

    @p.setter
    def p(self, value):
        self._p = value

class Bar(Foo):
    @Foo.p.getter
    def p(self):
        return self._p + 10

class NotASubclass(object):
    @Foo.p.getter
    def p(self):
        return self._p * 10

Bar() NotASubclass p Foo()

fset @Foo.p.getter

How does the @property decorator work? Python overriding getter without setter

@property.getter

class Parent:
    @property
    def p(self):
        return 'parent'

    @p.setter
    def p(self, value):
        print('setting p to', value)

    @p.deleter
    def p(self):
        print('deleting p')

class Child(Parent):
    @Parent.p.getter
    def p(self):
        return 'child'

print(Parent().p)  # output: parent
print(Child().p)   # output: child
Child().p = 3      # output: setting p to 3
del Child().p      # output: deleting p

@property
def p(self):
    return self._p