python delattr()函数
''' 描述: delattr函数用于删除属性 delattr(x,'foobar)相当于del x.foobar 语法: setattr(object,name) 参数: object--对象 name--必须是对象的属性 返回值: 无 ''' class People(): sex='男' def __init__(self,name): self.name=name def peopleinfo(self): print('欢迎%s访问'%self.name) delattr(People,'sex') #等同于 del People.sex print(People.__dict__) #输出 {'__module__': '__main__', '__init__': <function People.__init__ at 0x000001CE3E2E52F0>, 'peopleinfo': <function People.peopleinfo at 0x000001CE3E2E5378>, '__dict__': <attribute '__dict__' of 'People' objects>, '__weakref__': <attribute '__weakref__' of 'People' objects>, '__doc__': None} class Foo: def run(self): while True: cmd=input('cmd>>: ').strip() if hasattr(self,cmd): func=getattr(self,cmd) func() def download(self): print('download....') def upload(self): print('upload...') obj=Foo() obj.run()