实验要求：假设水果店所有的水果都是Fruit类，比如这些水果有苹果、桔子、香蕉。。。现在抽象出水果需要先购买后品尝。顾客类是Customer。

好的，那我们可以先定义一个Fruit类，它包含水果的名称和价格属性，并且可以被购买和品尝。代码如下：

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

    def buy(self):
        print(f"You have bought {self.name} for {self.price} dollars.")

    def taste(self):
        print(f"You are tasting {self.name}.")

然后我们定义一个Customer类，它可以购买水果和品尝水果。代码如下：

class Customer:
    def __init__(self, name):
        self.name = name

    def buy_fruit(self, fruit):
        fruit.buy()

    def taste_fruit(self, fruit):
        fruit.taste()

现在我们可以创建一些水果实例和顾客实例来测试我们的代码：

apple = Fruit("apple", 2)
orange = Fruit("orange", 1.5)
banana = Fruit("banana", 0.5)

alice = Customer("Alice")
bob = Customer("Bob")

alice.buy_fruit(apple)
bob.buy_fruit(orange)

alice.taste_fruit(apple)
bob.taste_fruit(orange)

输出结果如下：

You have bought apple for 2 dollars.
You have bought orange for 1.5 dollars.
You are tasting apple.
You are tasting orange.