装饰器

标签：api   username   choice   参数   inner   pre   *args   ice   append   

# athor : DevilsWhite
# -*- coding:UTF-8 -*-
account = {
    "is_authenticated":False,
    "username":"alex", 
    "password":"abc123" 
          }　　#假装这个是数据库

vip_record = []
wallet = []

def login(func):　　#父级函数名和要装饰参数函数
"""
账户登录认证
"""

     def inner(*args,**kwargs):　　#装饰器上
        if account["is_authenticated"] == False:　#查看是否需要认证　
            username_input = input("Username>>>")
            password_input = input("Password>>>")
            if username_input == account["username"] and password_input == account["password"]:
                account["is_authenticated"] = True
                print("You‘re welcome, %s"%username_input)
                func(*args,**kwargs)　　#认证完毕后，执行目标函数即要装饰参数函数
            else:print("username/password is worong".capitalize())
        else:
            print("You‘re welcome")
            func(*args, **kwargs)
     return inner　　#装饰器下

def pay_money(func):
"""
目的是检测是否是会员和是否愿意充值
"""
    def inner(*args,**kwargs):
        while True:
            if account["username"] in vip_record:
                print("Hi,Vip~~ ",account["username"])
                func(*args,**kwargs)
                break
            else:
                choice = input("Do u want to be our Vip with 30$?(Y/N)")
                if choice.upper() == "Y":
                    print("Your wallet is ",wallet[0])
                    if wallet[0] >= 30:
                        wallet[0]  = wallet[0] - 30
                        vip_record.append(account["username"])
                        pass
                    else:
                        choice1 = input("Do u want to recharge your wallet?(Y/N)")
                        if choice1.upper() == "Y":
                            recharge = int(input("The num of money:"))
                            wallet[0] = recharge
                        elif choice1.upper() == "N":
                            print("Byebye~~")
                            pass
                elif choice.upper() == "N":
                    print("Byebye~~")
                    pass
                else:print("Please input right a choice~")
    return inner



def home():
    print("home".center(30,"-"))

@login　　#语法糖，目的是偷懒
@pay_money
def America():
    print("欧美专区".center(30,"-"))


def Japn():
    print("日本专区".center(30,"-"))


def Korea(vip_level):
    if vip_level > 3:
        print("韩国专区".center(30, "-"))
    else:pass

home()
America()

装饰器

标签：api   username   choice   参数   inner   pre   *args   ice   append   

原文地址：https://www.cnblogs.com/DevilsWhite/p/11001186.html