//鼠标抽象类    public abstract class Mouse    {        public abstract void Print();    }

//戴尔鼠标    public class DellMouse : Mouse    {        public override void Print()        {            Console.WriteLine("生产了一个Dell鼠标");        }    }

//惠普鼠标    public class HPMouse : Mouse    {        public override void Print()        {            Console.WriteLine("生产了一个惠普鼠标");        }    }

//联想鼠标    public class LenovoMouse : Mouse    {        public override void Print()        {            Console.WriteLine("生产了一个联想鼠标");        }    }

/// 
    ///  鼠标工厂抽象类    /// 
    public abstract  class MouseFactory    {        public abstract  Mouse CreateMouse();    }

//戴尔鼠标工厂    public class DellMouseFactroy : MouseFactory    {        public override Mouse CreateMouse()        {            return new DellMouse();//在具体的工厂中实例化产品        }    }

//惠普鼠标工厂    public class HpMouseFactory : MouseFactory    {        public override Mouse CreateMouse()        {            return new HPMouse();//在具体的工厂中实例化产品        }    }

/// 
    /// 联想鼠标工厂    /// 
    public class LenovoMouseFactory : MouseFactory    {        public override Mouse CreateMouse()        {            return new LenovoMouse();//在具体的工厂中实例化产品        }    }

//生产一个戴尔鼠标                MouseFactory dellMouseFactory = new DellMouseFactroy();                _04工厂模式.Mouse dellMouse = dellMouseFactory.CreateMouse();                dellMouse.Print();                //生产一个惠普鼠标                MouseFactory hpMouseFactory = new HpMouseFactory();                _04工厂模式.Mouse hpMouse = hpMouseFactory.CreateMouse();                hpMouse.Print();                //生产一个联想鼠标                LenovoMouseFactory lenovoMouseFactory = new LenovoMouseFactory ();                _04工厂模式.Mouse lenovoMouse = lenovoMouseFactory.CreateMouse();                lenovoMouse.Print();