product_list=[
("IPHONE1",5800),
("IPHONE2", 5800),
("IPHONE3", 5800),
("IPHONE4", 5800),
("IPHONE5", 5800),
]
shopping_list = []
info = """----- supermarket info -----
1.Please enter the goods number you want to buy
2.input quit to quit
3.input check to check your shop cart
4.input good to see goods
"""
print(info)
while True:
money = input("please input your money:")
if money.isdigit():
if int(money) >= 0:
money = int(money)
break
else:
print("input money is wrong!")
continue
def good():
for i, item in enumerate(producty_list):
print(i, item)
good()
while True:
buy = input("input the good number ,or quit or check:")
if buy == 'quit':
print("good bye")
break
if buy == 'good':
good()
continue
elif buy == 'check':
print("Shop cart has", shopping_list)
continue
if buy.isdigit():
buy = int(buy)
if buy in range(len(producty_list)):
if money >= producty_list[buy][1]:
producty_name = producty_list[buy][0]
money -= producty_list[buy][1]
shopping_list.append(producty_list[buy][0])
print("{0} has added to your shoppong cart,you have {1} yuan left.".format(producty_name, money))
else:
print("you don't have enough money!")
else:
print("There's no goods you want here")
else:
print("I cant understand what you want to buy.....")