C# 关于泛型类，泛型方法，泛型接口＜实现算法重用＞

C# 关于泛型类，泛型方法，泛型接口 <实现算法重用>
1.main 调用处代码段

        static void Main(string[] args)
        {
            IFactory fct = new MyClass();
            var eat1 = fct.Eat();
            Console.WriteLine("eat1返回值：{0}",eat1);

            fct.Eat("我爱吃大熊猫");

            var sayhi1=fct.sayHi();
            Console.WriteLine(sayhi1);

            var sayhello1 = fct.sayHello("写轮眼");
            Console.WriteLine("sayhello1返回值：{0}", sayhello1);

            Console.ReadKey();
        }

2.泛型接口代码段

 /// 

    /// 泛型接口
    /// 
    /// 
    /// 
    /// 
    /// 
    /// 
    /// 
    public interface IFactory
    {
        T sayHi();//返回值泛型
        HL sayHello(U msg);//参数泛型
        V Eat();
        void Eat(HL str);
    }

3.泛型类&泛型方法 代码段

/// 

    /// 泛型类实现泛型接口
    /// 
    /// string
    /// string
    /// int
    /// string
    /// int
    /// double
    public class MyClass : IFactory
    {
        /// 

        /// 返回值泛型
        /// 
        /// 
        public V Eat()
        {
            object obj = 5;
            return (V)obj;
        }

        /// 

        /// 参数列表泛型
        /// 
        /// 
        public void Eat(HL str)
        {
            Console.WriteLine(str);
        }

        /// 

        /// 参数列表&返回值均泛型
        /// 
        /// 
        /// 
        public HL sayHello(U msg)
        {
            Console.WriteLine("这是sayHello泛型方法参数：{0}", msg);
            object rest = (object)msg;
            return (HL)rest;
        }

        public T sayHi()
        {
            object ret = "小鸟说早早早";
            return (T)ret;
        }
    }