# python-week05

**Repository Path**: wingyan/python-week05

## Basic Information

- **Project Name**: python-week05
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-10-21
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

```
product_list = [
    ('IPAD AIR',4799),
    ('Mac Pro',16000),
    ('Lancome foundation',430),
    ('head first python',128),
    ('milk tea',18)
]

shopping_car = []

alipay =int(input("请输入支付宝余额："))
while True:
        for item in product_list:
            print(product_list.index(item),item)
        choice = input("请输入商品编号：")

        if choice.isdigit():
            choice = int(choice)
            if choice >= 0 and choice < 5:
                if alipay >= product_list[choice][1]:
                    alipay = alipay - product_list[choice][1]
                    print("已添加 %s 进你的购物车，您的余额为%s"%(product_list[choice],alipay))
                    print("如需继续购物则输入商品编号，不需要购买其他物品请按")
                    shopping_car.append(product_list[choice])
                else:
                    print("你的余额不足，请选择其他商品或按'q'退出")
            else:
                    print("商城里没有这个东西，你可以按'q'退出")
        elif choice == 'q':
            print("-----购物清单-----")
            print(shopping_car)
            print("您的支付宝余额为：%s"%(alipay))
            break

        else:
            print("请输入编号或按'q'退出")
else:
     print("请输入正确的余额")
```
```
输出结果：
请输入支付宝余额：3000
0 ('IPAD AIR', 4799)
1 ('Mac Pro', 16000)
2 ('Lancome foundation', 430)
3 ('head first python', 128)
4 ('milk tea', 18)
请输入商品编号：2
已添加 ('Lancome foundation', 430) 进你的购物车，您的余额为2570
如需继续购物则输入商品编号，不需要购买其他物品请按
0 ('IPAD AIR', 4799)
1 ('Mac Pro', 16000)
2 ('Lancome foundation', 430)
3 ('head first python', 128)
4 ('milk tea', 18)
请输入商品编号：q
-----购物清单-----
[('Lancome foundation', 430)]
您的支付宝余额为：2570
```