简单的电商购物程序1

def logon(tename, tepassword, credit):
    if tename == logname and tepassword == logpassword:
        print("------------------------")
        print("欢迎您  " + name + " 使用翰海购买系统")
        print("您的积分为：" + str(credit) + " 等级为：" + Membertype(credit))
    else:
        print("账号密码错误请重新输入 或 注册账号")


menbertypr = "倔强青铜"


def Membertype(credit):
    if credit < 100:
        menbertypr = "倔强青铜"
    elif 100 <= credit < 200:
        menbertypr = "秩序白银"
    elif 200 <= credit < 300:
        menbertypr = "荣耀黄金"
    elif 300 <= credit < 400:
        menbertypr = "尊贵铂金"
    else:
        menbertypr = "永恒钻石"

    return menbertypr


cre = 0


def like():
    i = 2  # 为了通过修改i 退出多重循环
    allChoice = []
    while (i):
        for num in range(len(shop)):  # 打印商品列表
            print(str(shop[num][0]).ljust(5), shop[num][1].ljust(20), str(shop[num][2]).ljust(10),
                  str(shop[num][3]).ljust(10))
        choice = input("请输入要加入购物车的商品编号：")
        choice = [int(it) for it in choice.split(‘ ‘)]
        allChoice += choice  # choice是单次选择的商品列表，allchoice是所有选择的商品列表
        while (1):
            total = 0
            total1 = 0
            global cre
            credit = cre
            choiceSet = set(allChoice)  # 转换成集合，便于不重复计数
            for it in choiceSet:
                print(shop[it - 1][0], shop[it - 1][1], shop[it - 1][2], ‘*‘, allChoice.count(it))
                total += shop[it - 1][2] * allChoice.count(it)

            print("总计：", total, )
            print("---------------------------------\n"
                  "1：继续选购 2:整理购物车 Buy：结算\n")
            option = input("请选择：")
            if option == ‘1‘:
                break
            elif option == ‘2‘:
                item_num = int(input("请输入要删除的商品："))
                allChoice.remove(item_num)  # 每次只会删除一个元素
                continue
            if option == ‘Buy‘:
                for it in choiceSet:
                    print("*************结算**************")
                    print(shop[it - 1][0], shop[it - 1][1], shop[it - 1][2], ‘*‘, allChoice.count(it))
                    total1 += shop[it - 1][2] * allChoice.count(it)
                    credit += shop[it - 1][3] * allChoice.count(it)
                print("总计：", total1, "积分为：", credit, "会员等级：", Membertype(credit))
                print("-----信息更新成功！！！------")
                print("尊敬的", name, "性别", sex)
                print("您的积分：" + str(credit) + " 等级为：" + Membertype(credit))
                print("-----感谢您的使用，再见！------")
                cre = credit
                i = 0
                break
            else:
                print("输入错误请重新输入！")


shop = {}
a = 1
shop = [[‘1‘, ‘吉利‘, 100000, 100], [‘2‘, ‘比亚迪‘, 80000, 100], [‘3‘, ‘奇瑞‘, 68000, 100],
        [‘4‘, ‘长城‘, 120000, 100],[‘5‘, ‘哈弗‘, 100000, 50], [‘6‘, ‘奥迪‘, 230000, 100],
        [‘7‘, ‘红旗‘, 100000, 100]]
while (a):

    a = input("请输入“登录”或“注册”：")
    if a == "注册":
        name = input("请输入姓名：")
        sex = input("请输入性别：")
        logname = input("请输入账号：")
        logpassword = input("请输入密码：")
        credit = cre = 0
    elif a == "登录":
        tename = input("请输入账号：")
        tepassword = input("请输入密码：")
        try:
            credit = cre
            logon(tename, tepassword, credit)
            like()
        except:
            print("请先注册帐号！")