Qyou
2018-07-01 22:38:58浏览 2559
#! /usr/bin/env python# -*- coding:utf-8 -*-# -*- Author:Leon -*-"""功能要求：要求用户输入总资产，例如：2000显示商品列表，让用户根据序号选择商品，加入购物车购买，如果商品总额大于总资产，提示账户余额不足，否则，购买成功。附加：可充值、某商品移除购物车"""# 代码实现如下：goods = [ {"name": "电脑", "price": 1999}, {"name": "鼠标", "price": 10}, {"name": "游艇", "price": 20}, {"name": "美女", "price": 998},]cart = []while True: try: assets_input = input("请输入总资产金额：") assets = int(assets_input) print("总资产为：",assets) break except: print("输入错误... ...请重新输入 !")while True: for k,v in enumerate(goods,1): print(k,v['name'],v['price']) try: inp = input("请输入所需要购买商品的序号：") inp_num = int(inp) pass # 判断输入正确性 if inp_num< len(goods)+1: pass else: print("输入序号错误... ...请重新输入 !") continue inp_key = goods[inp_num-1] print("************************购物车信息*************************") print(inp_key['name'],inp_key['price'],"已加入购物车!") print("购物车的商品如下列表：") cart.append(inp_key) expense = 0 for inp_key,inp_value in enumerate(cart,1): print(inp_key,"[",inp_value['name'],inp_value['price'],"]") p = inp_value['price'] expense = int(expense + p) if assets > expense: shengyu = assets - expense print("还剩余：",shengyu) print("提交购买请输入：y\n继续购买请输入：g\n清空购物车输入：c\n退出购物请输入：b\n更新购物车输入：w") print("********************************************************") userchoose = input("请提交选择：") if userchoose == "y": count = len(cart) print("购买商品数量：",count) print("总金额：",shengyu) break elif userchoose == "g": continue elif userchoose == "c": del cart[:] print("已清空购物车,商品列表显示：",cart) elif userchoose == "w": print("********************************************************") print("购物车清单如下：") for inp_key,inp_value in enumerate(cart,1): print(inp_key,"[",inp_value['name'],inp_value['price'],"]") shopupdate= input("请选择要去掉的商品序号：") update_num = int(shopupdate) update_numkey =update_num -1 cart.remove(cart[update_numkey]) print("购物车更新清单如下：") for inp_key,inp_value in enumerate(cart,1): print(inp_key,"[",inp_value['name'],inp_value['price'],"]") count = len(cart) print("购买商品数量：",count) p = inp_value['price'] shengyu = assets - int(p) print("还剩余：",shengyu) print("********************************************************") elif userchoose==None or userchoose!='y' or userchoose!='c'or userchoose!='g' or userchoose!='w': print("输入非法数值，请重新输入... ...") continue else: userchoose == "b" break else: print("钱不够，请充值：") assets_chongzhi = input("请输入充值金额：") assets = assets + int(assets_chongzhi) print("充值成功，总资产为：",assets) print("********************************************************") except: print("输入序号错误... ...请重新输入 !")