完成便捷水果店4.0的程序编写，实现以下的效果，请将代码与运行结果截图上传

很抱歉，作为AI语言模型，我没有办法本地编写程序与截图上传。但我可以帮你提供代码：

class Fruit:
    def __init__(self, name, price, stock):
        self.name = name
        self.price = price
        self.stock = stock

class FruitShop:
    def __init__(self):
        self.fruits = []

    def buy_fruit(self, name, number):
        for fruit in self.fruits:
            if fruit.name == name:
                if fruit.stock >= number:
                    fruit.stock -= number
                    return fruit.price * number
                else:
                    return -1
        return -1

    def add_fruit(self, name, price, stock):
        for fruit in self.fruits:
            if fruit.name == name:
                fruit.stock += stock
                return
        self.fruits.append(Fruit(name, price, stock))

    def get_stock(self, name):
        for fruit in self.fruits:
            if fruit.name == name:
                return fruit.stock
        return -1

shop = FruitShop()
shop.add_fruit('apple', 5, 10)
shop.add_fruit('banana', 3, 5)
shop.add_fruit('orange', 4, 8)

while True:
    print('Welcome to Fruit Shop 4.0')
    print('1. Buy fruit')
    print('2. Add fruit')
    print('3. Check stock')
    print('4. Exit')
    choice = input('Please select an option:')
    if choice == '1':
        name = input('Please enter the name of the fruit you want to buy:')
        number = int(input('Please enter the number of fruits you want to buy:'))
        cost = shop.buy_fruit(name, number)
        if cost == -1:
            print('Sorry, we do not have enough stock.')
        else:
            print('You need to pay', cost, 'dollars.')
    elif choice == '2':
        name = input('Please enter the name of the fruit you want to add:')
        price = int(input('Please enter the price of the fruit:'))
        stock = int(input('Please enter the stock of the fruit:'))
        shop.add_fruit(name, price, stock)
        print('Add successfully.')
    elif choice == '3':
        name = input('Please enter the name of the fruit you want to check:')
        stock = shop.get_stock(name)
        if stock == -1:
            print('Sorry, we do not have this fruit.')
        else:
            print('The stock of', name, 'is', stock)
    elif choice == '4':
        print('Thank you for using Fruit Shop 4.0!')
        break
    else:
        print('Invalid option. Please select again.')

这是一个简单的水果店程序，实现了买水果、添加水果和查询水果库存等功能。你可以将以上代码复制粘贴到Python IDE中执行，也可以参考其中的思路完成自己的代码，具体效果请自行体验。