python实现淘宝购物系统

#刚创建账户所拥有的钱money = 0#定义商品列表goods_list = [{'name':'iphone','price':4500,'count':40},{'name':'电脑','price':7000,'count':100},{'name':'平板','price':5000,'count':60},{'name':'羽绒服','price':500,'count':80},{'name':'西服','price':1000,'count':90},{'name':'运动鞋','price':200,'count':120},{'name':'vivo','price':2000,'count':200},{'name':'自行车','price':2100,'count':300}]#创建空的购物车shoppingCar = []#创建订单列表order = []#注册账户def register(): print('→'*8,'注册账号','←'*8) global account global password account = input('请输入账号') password = input('请输入密码') password1 = input('请确认密码') while True: if password == password1: print('→'*8,'注册成功','←'*8) log_in() break else: password = input('请重新输入密码') password1 = input('请确认密码')#登录def log_in(): print('~'*10,'登录账号','~'*10) while True: user_account = input('请输入您的账号') user_password = input('请输入您的密码') if user_account != account: print('账号有误') elif user_account == account and user_password != password: print('密码有误') else: print('~'*10,'登录成功','~'*10) show_menu() break#展示商品列表def show_name(): print('❤'*30) a = 0 for i in range(0,len(goods_list)): for key in goods_list[i].keys(): if key == 'name': a += 1 print(goods_list[i][key], end = '/t') if a % 4 ==0 : print('') print('❤'*30)#选择操作def show_menu(): while True: print('※'*20) print('请选择您要执行的操作：') print('1、查询商品') print('2、查看购物车') print('3、查看订单') print('4、其他功能') print('5、退出系统') print('※'*20) choice = int(input()) if choice == 1: show_name() search_shopping() elif choice == 2: show_shoppingCar() elif choice == 3: show_order() elif choice == 4: other() else: print('欢迎下次光临！') break#添加商品至购物车def add_shopping(name,price,count,total): dict = {} dict['name'] = name dict['price'] = price dict['count'] = count dict['total'] = total shoppingCar.append(dict)#展示购物车def show_shoppingCar(): global money NeedMoney = 0 for i in range(0,len(shoppingCar)): for key in shoppingCar[i].keys(): print('*'*30) if key == 'name': print('商品名称:'+shoppingCar[i][key]) elif key == 'price': print('商品单价:%d'%shoppingCar[i][key]) elif key == 'count': print('商品数量:%d'%shoppingCar[i][key]) elif key == 'total': print('商品总价:%d'%shoppingCar[i][key]) NeedMoney += shoppingCar[i][key] print('一共需花费%d元'%NeedMoney) if money >= NeedMoney: money -= NeedMoney pay_shopping() print('一共花费%d元'%NeedMoney) else: print('余额不足') charge_money()#清空购物车def pay_shopping(): print('是否支付 yes / no') user = input('') if user == 'yes': print('支付成功') order.extend(shoppingCar) shoppingCar.clear( )#设置充值密码def charge_pwd(): global charge_password global money print('❀'*30) charge_password2 = input('请输入密码') charge_password1 = input('请确认密码') while True: if charge_password1 == charge_password2: charge_password = charge_password1 print('❀'*10,'设置成功','❀'*10) show_menu() break#充值金额def charge_money(): global money print('是否充值 yes / no') user = input('') if user == 'yes': while True: user = input('请输入密码') if user == charge_password: while True:  chargeMoney = int(input('请输入充值金额'))  if chargeMoney % 100 != 0:  print('请输入充值金额')  else:  money += chargeMoney  print('充值成功')  break break else: print('密码有误')#添加至订单def add_order(name,price,count,total): dict = {} dict['name'] = name dict['price'] = price dict['count'] = count dict['total'] = total order.append(dict)#展示订单def show_order(): cost_money = 0 #总共花费的钱 for i in range(0,len(order)): for key in order[i].keys(): print('*'*50) if key == 'name': print('商品名称:'+order[i][key]) elif key == 'price': print('商品单价:%d'%order[i][key]) elif key == 'count': print('商品数量:%d'%order[i][key]) elif key == 'total': print('商品总价:%d'%order[i][key]) cost_money += order[i][key] print('总共花费%d元'%cost_money)#查找商品def search_shopping(): name = input('请输入您要查询的名称：') isExist = False for i in range(0,len(goods_list)): if isExist: isExist = False break dict = goods_list[i] if dict['name'] == name: print('商品名称：'+name) print('商品单价：%d'%dict['price']) print('商品库存：%d'%dict['count']) if dict['count'] != 0 :  print('请选择一下功能：/n1、购买/n2、添加至购物车/n3、返回上一项') choice = int(input()) if choice == 1:  buy_shopping(dict)  isExist = True elif choice == 3:  search_shopping() elif choice == 2:  num = int(input('请选择添加至购物车的数量：'))  while True:  if num > dict['count']:  print('超出总量限制，请重新输入！')  num = int(input('请选择添加至购物车的数量：'))  else:  add_shopping(dict['name'],dict['price'],num,dict['price']*num)  isExist = True  print('添加成功')  break else:  print('输入有误，再见！') else: if i == len(goods_list)-1: print('该商品不存在，请重新选择功能！')#购买商品def buy_shopping(dict): global money if dict['count'] == 0: print('该商品已售空，请选择其他商品') else: while True: num = int(input('请输入购买的数量：')) if num <= dict['count']: needMoney = num * dict['price'] if money < needMoney:  print('余额不足，请充值或修改购买数量！') else:  money -= needMoney  dict['count'] -= num  print('购买成功！')  add_order(dict['name'],dict['price'],num,dict['price']*num) break else: print('库存不足，请重新输入')#其他功能def other(): print('△'*30) print('请选择您要执行的操作：') print('1、充值') print('2、更改登录密码') print('3、更改充值密码') print('4、查看余额') choice = int(input()) if choice == 1: print('是否选择设置充值密码　yes/ no') a = input() if a == 'yes' : charge_pwd() else: charge_money() elif choice == 2: change_password() elif choice == 3: changeCPWD() elif choice == 4: print('余额为%d元'%money)#更改登录密码def change_password(): global password while True: print('☆'*30) a = input('输入新密码') b = input('确认密码') print('☆'*30) if a == b: password = a print('请重新登录') log_in() break else: print('重新输入')#更改支付密码def changeCPWD(): global charge_password while True: print('◇'*30) a = input('输入新密码') b = input('确认密码') print('◇'*30) if a == b: charge_password = a break else: print('重新输入')register()