sum=0gouwuche=""shuliang=0notebook={
   "本子":3,"小本子":2,"大本子":5}pen={
   "签字笔":5,"圆珠笔":3,"铅笔":2}id=""pwd=""name={}sex={}integral="0"vip=""a=input("请输入”1”创建账号:")if a=="1":    name=input("请输入姓名：")    sex=input("请输入性别：")    id=input("请输入账号：")    pwd=input("请输入密码：")    print("注册成功,请登入账号")    while True:        id=input("请输入账号：")        pwd=input("请输入密码：")        if id==id and pwd==pwd:            print("欢迎尊敬的"+name+"进入商店")            print("个人信息：")            print("普通会员")            print("姓名："+name)            print("性别："+sex)            while True:                a=input("输入商品类型：“本子”或“笔”,输入”BUY“结算：")                if a == "本子":                    print("1.  本子 3元")                    print("2.  小本子  2元")                    print("3.  大本子  5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+="本子"                            gouwuche+="*"                            gouwuche+=str(geshu)                            gouwuche+="  "                            sum+=int(notebook["本子"])*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+="小本子"                            gouwuche+="*"                            gouwuche+=str(geshu)                            gouwuche+="  "                            sum+=int(notebook["小本子"])*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+="大本子"                            gouwuche+="*"                            gouwuche+=str(geshu)                            gouwuche+="  "                            sum+=int(notebook["大本子"])*geshu                            print("加入购物车成功")                                                    else:                            break                                    if a == "笔":                    print("1.  签字笔  5元")                    print("2.  圆珠笔  4元")                    print("3.  铅笔  2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+="签字笔"                            gouwuche+="*"                            gouwuche+=str(geshu)                            gouwuche+="  "                            sum+=int(pen["签字笔"])*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+="圆珠笔"                            gouwuche+="*"                            gouwuche+=str(geshu)                            gouwuche+="  "                            sum+=int(pen["圆珠笔"])*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+="铅笔"                            gouwuche+="*"                            gouwuche+=str(geshu)                            gouwuche+="  "                            sum+=int(pen["铅笔"])*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"+integral+"积分")                    print(str(sum)+"元")                    if float(integral)>=0.0 and float(integral)<=100.0:                        vip="普通会员"                    if float(integral)>100.0 and float(integral)<=200.0:                        vip="高级会员"                    elif float(integral)>200.0 and float(integral)<=350.0:                        vip="银钻会员"                    elif float(integral)>500.0:                        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："+name)                        print("性别："+sex)                    else:                        print("输入错误")        else:            print("输入账号或密码有误，请重新输入")