摘要：#使用描述符，定义描述符， class Tyeed: def __init__(self,key,expected_type):#2 self.key=key self.expected_type=expected_type def __get__(self, instance, owner): p 阅读全文

摘要：# def deco(obj): # print(' ') # return obj # @deco # def test(): # print('运行') # test() def deco(obj): print(' ') obj.z=1 obj.x=5 obj.c=3 return obj @ 阅读全文