装饰器

作用:合并功能，拦截已有函数功能
缺点:在参数上实现统一有一定困难

def verify(func):
    def wrapper(*args):
        print("身份验证")
        func(*args)
    return wrapper
# enter_background=verify(enter_background)
@verify
def enter_background(user,name):
    print(user,name,"进入后台")
# enter_background=verify(remove)
@verify
def remove(name):
    print("删除用户",name)

enter_background("abc","123")
remove("abc")