learn_1 购买商品练习

购买商品的小测试

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#购买商品练习

proudect_list = [
    ("iphone 11", 4999),
    ("huawei mate30", 3999),
    ("ipad mini5", 2500),
    ("k8s book", 198),
    ("coffer", 20),
    ("bike", 600),
]
shopping_list = []
user_money = input("请输入你的钱数：")

#isdigit 判断int为真，则进入下一步
if user_money.isdigit():
    user_money = int(user_money)
    while True:
        #enumerate 方法 可以给列表添加序号
        for index, item in enumerate(proudect_list):
            print(index+1, item)
        user_choice = input("请输入需要购买商品的编号，输入q退出 >>>:")
        if user_choice.isdigit():
            user_choice = int(user_choice)
            if user_choice > 0 and user_choice <= len(proudect_list):
                user_choice = user_choice-1
                p_item = proudect_list[user_choice]
                if int(user_money) >= int(p_item[1]):
                    shopping_list.append(p_item)
                    user_money -= p_item[1]
                    print("购买的商品 %s , 剩余钱数 %s" % (shopping_list, user_money))
                else:
                    print("33[41:1m你的钱不够，233333[0m")
            else:
                print("输入编号不对，商品不存在")

        elif user_choice == 'q':
            print("已经购买的商品 %s , 剩余钱数 %s" % (shopping_list, user_money))
            exit()
        else:
            print("invaild option!!")