摘要: class MyTest(): my_obj = None def __new__(cls,*args,**kwargs): if not cls.my_obj: cls.my_obj =object.__new__(cls,*args,**kwargs) return cls.my_obj 阅读全文
posted @ 2021-04-19 15:43 末年926 阅读(28) 评论(0) 推荐(0) 编辑