Python中属性

属性定义的两种方式：

1、num1=property(GetNum,SetNum)  

class Pro():
    def __init__(self):
        self._num=

    def GetNum(self):
        return self._num

    def SetNum(self,num):
        self._num=num

    num1=property(GetNum,SetNum)     

c=Pro()
print(c.GetNum())

c.SetNum()
print(c.GetNum())

print(c.num1)

2、通过装饰器的形式

class Pro():
    def __init__(self):
        self._num=

    @property
    def num(self):
        return self._num

    @num.setter
    def num(self,num):
        self._num=num

c=Pro()
print(c.num)

c.num=
print(c.num)