模拟购物车程序

user="xiaojin"
password=123456
count=0
while count<3:
    name=input("user>>:")
    if name != user:
        count += 1
        continue
    passwd=int(input("password>>:"))
    if passwd!=password:
        count += 1
        continue
    print ("ok")
    break
else:
    exit()
    
msg_dic=[
    (‘Iphone‘, 5800),
    (‘Mac‘, 9800),
    (‘Bike‘, 800),
    (‘Iwatch‘, 3000),
    (‘Coffee‘, 31),
    (‘Pen‘, 100)
]

shop_list=[]
while True:
   money=input("请输入你的工资:")
   if not money.isdigit():
       continue
   else:
       money=int(money)
       break
while True:
    til="欢迎购买"
    print(til.center(32,"-"))
    for key,item in enumerate(msg_dic):
       print ("商品编号\033[31;m%s\033[0m,商品为\033[31;m%s\033[0m,价格为\033[31;m%s\033[0m"%(key,item[0].ljust(8),item[1]))
    goods=input("请输入你要买的商品编号:")
    if goods.isdigit():
        goods=int(goods)
        if goods>=0 and goods<len(msg_dic):
            every_shop=msg_dic[goods]
            print (every_shop)
            if money>=every_shop[1]:
                shop_list.append(msg_dic[goods])
                money=money-every_shop[1]
                print ("你的工资还有\033[31;m%s\033[0m,你购买的商品是\033[31;m%s\033[0m"%(money,every_shop[0]))
            else:
                print ("你的工资不购买商品%s,按q退出,你当前的工资为\033[31;m%s\033[0m"%(every_shop[0],money))
        else:
            print ("你选的购物编号不存在,请重新输入按q退出")
    elif goods=="q":
        for k in shop_list:
           print ("购买商品%s,商品价格%s"%(k[0],k[1]))
        print ("你当前的金额为\033[31;m%s\033[0m"%(money))
        exit()
    else:
        print ("请重新输入")