简单的购物程序（续1）

else:
                            break
                    
                if a == "零食":
                    print("1.  泡面  2元")
                    print("2.  片片酥  4元")
                    print("3.  火腿肠  3元")
                    while True:
                        a=input("输入编号购买商品，输入“B”返回类型选择：")
                        if a=="1":
                            geshu=int(input("输入购买个数："))
                            gouwuche+="泡面"
                            gouwuche+="*"
                            gouwuche+=str(geshu)
                            gouwuche+="  "
                            sum+=int(yinliao["泡面"])*geshu
                            shuliang1=str(geshu)
                            print("加入购物车成功")
                            
                        elif a=="2":
                            geshu=int(input("输入购买个数："))
                            gouwuche+="片片酥"
                            gouwuche+="*"
                            gouwuche+=str(geshu)
                            gouwuche+="  "
                            sum+=int(yinliao["片片酥"])*geshu
                            shuliang2=str(geshu)
                            print("加入购物车成功")
                            
                        elif a=="3":
                            geshu=int(input("输入购买个数："))
                            gouwuche+="火腿肠"
                            gouwuche+="*"
                            gouwuche+=str(geshu)
                            gouwuche+="  "
                            sum+=int(yinliao["火腿肠"])*geshu
                            print("加入购物车成功")
                            
                        else:
                            break
                elif a=="BUY":
                    jifen=str(sum/2)
                    print("您购买的商品有：")
                    print(gouwuche)
                    print("您共有"+jifen+"积分")
                    print(str(sum)+"元")
                    if float(jifen)>=0.0 and float(jifen)<=50.0:
                        vip="普通会员"
                    if float(jifen)>50.0 and float(jifen)<=150.0:
                        vip="高级会员"
                    elif float(jifen)>150.0 and float(jifen)<=200.0:
                        vip="银钻会员"
                    elif float(jifen)>200.0:
                        vip="金钻会员"
                    aa=input("输入“2”查看个人信息：")
                    if aa=="2":
                        print("个人信息：")
                        print(vip)
                        print("姓名："+nameku)
                        print("性别："+sexku)
                    else:
                        print("输入错误")
        else:
            print("输入账号或密码有误，请重新输入")