购物车基础代码

自己没有写博客的习惯,但是看到那么多大佬的作品,感触颇深,故:

程序:购物车程序

1、启动程序后,让用户输入工资,然后打印商品列表

2、允许用户根据商品编号购买商品

3、用户选择商品后,检测余额是否够,够就直接扣款,不够就提醒

4、可以随时退出,退出时,打印已购买商品和余额

#!/usr/bin/python
# -*- coding -*-
# Author:wangyl

product_list = [("Iphone",5800),
                ("Mac Pro",9800),
                ("Bick",800),
                ("Watch",10600),
                ("Coffee",31),
                ("Alex python",120)]
shopping_list = []
salary = input("Input you salary:")
if salary.isdigit():   #判断是否为数字
    salary = int(salary)
    while True:
        # for item in product_list:
            # print(product_list.index(item),item)
        for index,item in enumerate(product_list):
            print(index,item)
        user_choice = input("选择要买嘛?>>>>:")
        if user_choice.isdigit():
            user_choice = int(user_choice)
            if user_choice < len(product_list) and user_choice >= 0:
                p_item = product_list[user_choice]
                if p_item[1] <= salary:   #买得起
                    shopping_list.append(p_item)
                    salary -= p_item[1]
                    print("Added %s into shopping cart,you current balance is \033[31;1m%s\033[0m" %(p_item,salary))
                         #红色 31  绿色  32
                else:
                    print("\033[41;1m你的余额只剩[%s]啦,还买个毛线\033[0m"%salary)  #背景红色 41  背景绿色 42
            else:
                print("product code [%s] is not exist!"% user_choice)
        elif user_choice == "q":
            print("------shopping list-------")
            for p in shopping_list:
                print(p)
            print("Your current balence:",salary)
            exit()
        else:
            print("invalid option")

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转载自blog.csdn.net/wylxhwxn1314/article/details/87912140
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