设计一组类，分别表示计算机，台式机，笔记本，服务器

好的，为您设计一组类：

class Computer:
    def __init__(self, brand, model):
        self.brand = brand
        self.model = model
        
    def turn_on(self):
        print("Computer is turning on...")
        
    def turn_off(self):
        print("Computer is turning off...")

class Desktop(Computer):
    def __init__(self, brand, model, monitor):
        super().__init__(brand, model)
        self.monitor = monitor
        
    def play_game(self):
        print("Playing game on desktop...")

class Laptop(Computer):
    def __init__(self, brand, model, weight):
        super().__init__(brand, model)
        self.weight = weight
        
    def carry_around(self):
        print("Carrying laptop around...")

class Server(Computer):
    def __init__(self, brand, model, rack_mounted):
        super().__init__(brand, model)
        self.rack_mounted = rack_mounted
        
    def process_requests(self):
        print("Processing requests on server...")

以上是一个简单的类设计，其中 `Computer` 是基类，其他三个类都继承自它。`Desktop`、`Laptop`、`Server` 分别表示台式机、笔记本和服务器，它们都有一些特殊的属性和方法。您可以在此基础上进一步扩展和优化。