python小程序之购物系统

python小程序之购物系统

# -*- coding: utf-8 -*-
import time
goods = [
    {"name":"computer","price":1999},
    {"name":"mouse","price":19},
    {"name":"Yacht","price":199},
    {"name":"human","price":999},
]
shop = []
money = 0
while True:
    print "1充值，2添加商品，3移除商品，4查看购物车，5查看余额，6结账
"
    inp = input('请选择您需要的操作：')
    num = int(inp)
    if num == 1:
        inp = input("请输入充值钱数：")
        money = money + int(inp)
        print "当前余额：",money
        time.sleep(1)
    elif num == 2:
        for key, item in enumerate(goods,1):
            print key,item
        inp = input("请输入购买商品序号：")
        num = int(inp)
        shop.append(goods[num - 1])
        print "您添加的商品为：",goods[num - 1]
        time.sleep(1)
    elif num  == 3:
        for key, item in enumerate(shop,1):
            print key,item
        inp = input("请输入你要移除的商品序号：")
        num = int(inp)
        shop.remove(shop[num -1])
    elif num == 4:
        print shop
    elif num == 5:
        print money
    else:
        inp = 0
        sum = 0
        while inp < len(shop):
            sum = sum + shop[inp]['price']
            inp += 1
        if money < sum:
            print "余额不足请充值！"
        else:
            print"结账成功！"
            break