摘要: class MyTest(object): #继承object instance = None def __new__(cls, *args, **kwargs): #重写new方法 if not cls.instance: cls.intance = object.__new__(cls) ret 阅读全文
posted @ 2021-04-19 17:58 一个好人撒 阅读(30) 评论(0) 推荐(0)