shopping.py

'''
字符串的isdigit()方法
列表的enumerate方法
颜色高亮方法
'''
shopping_card=[]
goods=[('phone',5800),('bycle',1200),('book',65),('milk',53),('cup',50),('chair',200)]
salary = input('Please input your salary:')
if salary.isdigit():
    salary =  int(salary)
    while True:
        for i,j in enumerate(goods):
            print(i,j)
        choice = input('What do you want to buy:')
        if choice.isdigit():
            choice = int(choice)
            if choice >= 0 and choice < len(goods):
                if int(goods[choice][1]) <= int(salary):
                    p_item=goods[choice]
                    shopping_card.append(p_item)
                    salary = salary - int(p_item[1])
                    print('\033[31;1m 你买到的东西：%s,剩余金额：%s \033[0m' % (p_item,salary ))
                else:
                    print('你的资金不足，欢迎再次光临。')
                    exit()
        elif choice == 'q':
            for i in shopping_card:
                print(i)
            print('你的剩余资金是：\033[31;1m%s\033[0m' % salary)
            exit()
        else:
            print('你输入的参数错误，请输入商品编号')
else:
    print('请输入数字，谢谢')