委托Func-Action

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
using System.IO.Compression;

namespace ConsoleApp
{
    class Program
    {
        static void WritePrint<T>(Action<T> action, T t)
        {
            Console.WriteLine("类型为：{0}，值为：{1}", t.GetType(), t);
            action(t);
        }

        static Tresult WritePrint<T, Tresult>(Func<T, Tresult> func, T t)
        {
            return func(t);
        }

        static void Main(string[] args)
        {

            int result = WritePrint(p => { Console.WriteLine("{0}是一个整数", p); return p; }, 10);
            //result = WritePrint(p => { Console.WriteLine("{0}是一个整数", p); return p * p; }, 10);
            //result = WritePrint(p => { return p; }, 10);
            //result = WritePrint(p => p, 10);
            //result = WritePrint(p => p = p, 10);

            int n = 0;

            Func<int, int> f = (p) => n = p;//Func为带有返回值
            int s = f(11);

            Action<int> a = (p) => n = p;//Action不能有返回值
            Console.Read();
            
            WritePrint<int>(p => { Console.WriteLine("{0}是一个整数", p); }, 10);
            Console.Read();
            
            string str = "所有童鞋：".plusString(p => p = p + " girl： lisi、lili\r\n").plusString(p => p + "boy: wangwu");
            Console.WriteLine(str);

            Console.Read();
        }
    }
    static class Extentions
    {
        public static string plusString<TParam>(this TParam source, Func<TParam, string> func)
        {
            Console.WriteLine("字符串相加前原值为：{0}。。。。。。", source);
            return func(source);
        }
    }

}