Invoke BeginInvoke EndInvoked的使用 简单的线程同步

版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/bayinglong/article/details/72805816
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

namespace _11._3._1
{
    class Program
    {
        public delegate int FooDelegate(string s);
        static void Main(string[] args)
        {
            Console.WriteLine("主线程" + Thread.CurrentThread.ManagedThreadId);

            FooDelegate fooDelegate = Foo;
            IAsyncResult result = fooDelegate.BeginInvoke("Hello World.", null, null);
            Console.WriteLine("主线程继续执行...");
            Console.WriteLine("结果是" );

            //当使用BeginInvoke异步调用方法时,如果方法未执行完,EndInvoke方法就会一直阻塞,直到被调用的方法执行完毕,线程同步。
            int n = fooDelegate.EndInvoke(result);
            Console.WriteLine("回到主线程" + Thread.CurrentThread.ManagedThreadId);
            Console.WriteLine("结果是" );
            Console.ReadKey(true);
        }
        public static int Foo(string s)
        {
            Console.WriteLine("函数所在线程" + Thread.CurrentThread.ManagedThreadId);
            Console.WriteLine("异步线程开始执行:" + s);
            Thread.Sleep(1000);
            return s.Length;
        }
    }
}

1、声明委托
2、委托实例化
3、用委托异步线程 BeginInovke
4、阻塞主线程 EndInovke

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转载自blog.csdn.net/bayinglong/article/details/72805816