# Author:Zhu Jin Xin
product_list =[
    ("Airpos",1200),
    ("Beats",2500),
    ("Iphone7",4800),
    ("Iphone8",5800),
    ("IphoneX",9800),
    ("IphoneXS",10800)
]
shopping_list = []
salary = input("輸入你的工資：")
if salary.isdigit():
    salary = int(salary)
    while True:
        for index,item in enumerate(product_list):
            print(index,item)
        user_choice =input("輸入你想購買商品的編號，退出請按q：")
        if user_choice.isdigit():
            user_choice = int(user_choice)
            if user_choice<len(product_list) and user_choice>=0:
                p_item = product_list[user_choice]
                if p_item[1]<=salary:
                    salary -=p_item[1]
                    shopping_list.append(p_item)
                    print("購買%s成功,餘額為:\033[31;1m%s\033[0m"%(p_item,salary))
                else:
                    print("\033[31;1m你的餘額只剩%s啦\033[0m"%salary)
            else:
                print("\033[31;1m你輸入的%s號商品不存在，請重新選擇\033[0m"%user_choice)
        elif user_choice =="q":
            print("--------shopping list--------")
            for p in shopping_list:
                print(p)
                print("你的餘額為:",salary)
                exit()
        else:
            print("無效輸入，請重新輸入")
else:
    print("工資格式錯誤，必須為數字請重新輸入")
    import hhhe