呵呵额呵呵

flag = True
print("欢迎光临阿瑞斯尚品店！")
money = input("请输入您的余额：")
while flag:
    shopingcar =[]
    if money.isdigit() and int(money) > 0 :
        print("请查看商品列表")
    else :
        print("没钱乱窜啥！")
        break
    li = [{"CPU":"1450"},
          {"SSD":"455"},
          {"GPU":"400"},
          {"鼠标":"45"},
          {"内存":"350"},
          {"键盘":"50"},
          {"显示器":"150"}]
    for j in li:
        for k,v in j.items():
            print("{s1}、 {k1}\t{v1}元".format(s1 =li.index(j)+1,k1 = k,v1 = v).expandtabs())
    s = input("请输入您所需物品的序号/输入q/Q退出程序")
    if s.isdigit():
        s = int(s)
        if s>0 and s<=len(li):
            shopingcar.append(li[s - 1])
            for l,l1 in shopingcar[len(shopingcar)-1].items():
                print("商品{shang} 价格{jia}".format(shang = l,jia = l1))
                if int(money)-int(l1)>0:
                    
                    print("您的余额为：{yu}")

        else:print("请输入有效的商品序号！")
    elif s.upper() == "Q":break
    else:print("请输入商品的序号！")