1 money = input('请输入您的工资:')
2 shop = [("iphone",5800),("ipod",3000),("book",210),("Archer python",80)]
3 while not money.isdigit():
4 print("请正确输入整数",end=':')
5 money = input()
6 money = int(money)
7 while True:
8 print("商品详情".center(50,'-'))
9 for i in range(len(shop)):
10 print("%d. %s $%s".center(50,' ') % (i,shop[i][0],shop[i][1]))
11 print("请输入你要购买的商品序号,(退出请按'q'):",end='')
12 num = input()
13 while not( num == 'q' or num.isdigit() and int(num) < len(shop) and int(num) >= 0 ):
14 print("请正确输入商品序号:",end='')
15 num = input()
16 if num == 'q':
17 break
18 num = int(num)
19 if money >= int(shop[num][1]):
20 money -= int(shop[num][1])
21 print("您购买了%s 价格为%d --您还有余额为\033[31;1m$%d\033[1m" % (shop[num][0],shop[num][1],money))
22 elif money <= int(shop[num][1]):
23 print("您当前余额不足,剩余余额为:\033[31;1m$%d\033[1m"%(money))
