log_status = False

f = open("info", "r", encoding="utf8")

source = f.read()

source = eval(source)

username = ""

def info_match(f_para_info):

    username = input("type your ID：")

    password = int(input("type your password："))

    global source

    if username == source[f_para_info]["name"] and password == source[f_para_info]["password"]:

        print("login successful")

        global log_status

        log_status = True

    else:

        print("login failed")

def para_decorator(f_para_pd):

    def decorator(f_para_dec):

        def func():

            if log_status == True:

                global source

                sf = source[f_para_pd]["name"]

                print("welcome user {kk}".format(kk=sf))

                f_para_dec()

            if log_status == False:

                if f_para_pd == "jingdong":

                    info_match(f_para_pd)

                    f_para_dec()

                elif f_para_pd == "weixin":

                    info_match(f_para_pd)

                    f_para_dec()

                elif f_para_pd == "qq":

                    info_match(f_para_pd)

                    f_para_dec()

        return func

    return decorator

@para_decorator("jingdong")  # homepage=para_decorator("jingdong")(homepage)

def homepage():

    print("welcome to home...")

@para_decorator("weixin")

def finance_page():

    print("welcome to finance")

@para_decorator("qq")

def bookstore():

    print("enjoy to the sea of knowledge")

print("welcome to jd.com".center(60,"*"))

while True:

    print('''

    1.homepage （账号：ccc 密码：123）

    2.finance_page（账号：gaga 密码：456）

    3.bookstore（账号：xiaomu 密码：789）

    4.quit to jd

    '''

    )

    switch = int(input("switch to ..."))

    if switch == 1:

        homepage()

    elif switch == 2:

        finance_page()

    elif switch == 3:

        bookstore()

    elif switch == 4:

        break