装饰器的嵌套

user_info = {}


def check_login(func):
    def inner(*args, **kwargs):
        if user_info.get("in_login", None):
            ret = func(*args, **kwargs)
            return ret
        else:
            print("请登陆")


def check_admin(func):
    def inner(*args, **kwargs):
        if user_info.get("user_type", None) == 2: #获得用户类型
            ret = func(*args, **kwargs)
            return ret
        else:
            print("没有权限")

    return inner


@check_login
@check_admin
def index():
    print("index")


@check_login
def home():
    print("home")


def login():
    username = input("请输入用户名：")
    if username == "admin":
        user_info["is_login"] = True
        user_info["user_type"] = 2
    else:
        user_info["is_login"] = True
        user_info["user_type"] = 1


def main():
    while True:
        inp = input("1:请登陆；2：查看信息；3：超级管理员 \n ")
        if inp == "1":
            login()
        elif inp == "2":
            home()
        elif inp == "3":
            index()
main()