C#中的简单工厂模式

// 抽象产品类
public abstract class Product
{
    public abstract void Operation();
}

// 具体产品类A
public class ConcreteProductA : Product
{
    public override void Operation()
    {
        Console.WriteLine("具体产品A的操作");
    }
}

// 具体产品类B
public class ConcreteProductB : Product
{
    public override void Operation()
    {
        Console.WriteLine("具体产品B的操作");
    }
}

// 简单工厂类
public class SimpleFactory
{
    public static Product CreateProduct(string type)
    {
        switch (type)
        {
            case "A":
                return new ConcreteProductA();
            case "B":
                return new ConcreteProductB();
            default:
                throw new ArgumentException("无效的产品类型");
        }
    }
}

// 客户端代码
public class Client
{
    public void Main()
    {
        Product productA = SimpleFactory.CreateProduct("A");
        productA.Operation();

        Product productB = SimpleFactory.CreateProduct("B");
        productB.Operation();
    }
}