python---购物车

实现购物车：#!/usr/bin/env python#coding:utf-8__author__ = "lvah"'''@author:wangjiazhuo@file:购物车.py@contact:[e-mail]@time:7/12/176:23 PM@desc:'''salary = raw_input('input your salary:')if salary.isdigit():    salary = int(salary)shop_car = []mall = [    ('Ipone',8000),    ('Book',200),    ('Bike',1000)]for item in enumerate(mall):    num = item[0]    name = item[1][0]    price = item[1][1]    print num, name, pricewhile True:    choice = raw_input('choose you want to buy:      q to exit')    if choice.isdigit():        choice = int(choice)        if choice <= len(mall)-1:            p_item = mall[choice]            if salary < p_item[1]:                print '余额不足，请购买其他商品或退出'            elif salary > 0:                shop_car.append(p_item)                salary -= p_item[1]                print '\n你买到的商品有:',                for item in shop_car:                    print item                print '你的余额为:%d'%salary            else:                pass        else:            print '请输入已有的商品编号'    elif choice == 'q':        print '\n你买到的商品有:'        for item in shop_car:            print item        print '你的余额为:%d'%salary        exit(0)    else:        print '请重新选择'

执行结果：