1.c#异步介绍
异步必须基于委托,有委托才有异步
新建一个window Form程序,添加一个按钮,(name)=btnAsync
using System;using System.Windows.Forms; using System.Threading; namespace MyAsync { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private delegate void DoSomethingHandler(string name);//定义一个委托函数 private void btnAsync_Click(object sender, EventArgs e) { DoSomethingHandler method = new DoSomethingHandler(DoSomething);for (int i = 1; i <= 5; i++) { string name = string.Format("Async_{0}", i); method.BeginInvoke(name, null, null);//新建一个子线程,异步调用 } }private void DoSomething(string name)//调用函数 { Console.WriteLine("{0}正在执行,线程ID={1}", name, Thread.CurrentThread.ManagedThreadId); Thread.Sleep(1000); Console.WriteLine("{0}结束执行,线程ID={1}", name, Thread.CurrentThread.ManagedThreadId); } } }