购物车小程序

product_list = [
    (‘Iphone‘,5800),
    (‘Mac Pro‘,9800),
    (‘Bike‘,800),
    (‘Watch‘,10600),
    (‘Coffee‘,31),
    (‘Alex Python‘,120)
]
shop_dist=[]
salary=input(" inpue your salary")
if salary.isdigit():
    salary=int(salary)
    while True:
         for index,item in enumerate(product_list):
            print(index,item)
         user_chose=input("you yao mai ma?")
         if user_chose.isdigit():
             user_chose=int(user_chose)
             if user_chose<len(product_list) and user_chose>0:
                 pie_list = product_list[user_chose]
                 if pie_list[1]<=salary:
                     print("买得起")
                     shop_dist.append(pie_list)
                     salary -= pie_list[1]
                     print(" add %s your pie_list and your salayy is \033[31;1m%s\033[0m" % (pie_list, salary) )
                 else:
                     print(‘就剩这点%s钱，买个毛线啊‘% salary)
             else:print("ni输入的%s商品不存在" % user_chose)
         elif user_chose ==‘q‘:
             print(‘----------------你的购物车--------------‘)
             for i in shop_dist:
                 print(i)
                 print("Your current balance:", salary)
                 exit()
             else:
                 print(‘invald option‘)