C # example of method-to-asynchronous Conversion,

C # example of method-to-asynchronous Conversion,

Using System; using System. collections. generic; using System. linq; using System. text; using System. threading; using System. threading. tasks; namespace Asiainfo e-commerce {public class Program2 {public static void Main (string [] args) {Console. writeLine ("main thread 1"); AsyncTest. toAsync () => {Thread. sleep (1, 3000); Console. writeLine ("let me use a new thread for execution, Master thread for your work") ;}, () =>{ Console. writeLine ("Callback") ;}); AsyncTest. toAsync <string> (() ==>{ Thread. sleep (1000); return "female pig and male pig are married" ;}, p =>{ Console. writeLine ("Callback Result:" + p) ;}); Console. writeLine ("main thread 2"); Console. readLine ();}} /// <summary> /// convert a common method to an Asynchronous Method // </summary> public class AsyncTest {/// <summary> // parameter, convert a method with no return value to an Asynchronous Method /// </summary> /// <param name = "srcAction"> method to be converted </param> /// <param name = "callBack"> callBack method </param> public static async Task ToAsync (Action srcAction, Action callBack) {// defines an Asynchronous Method without return values. The following code may be a bit like Func <Task> task = () => {return Task. run () =>{ srcAction () ;}; await task (); if (callBack! = Null) {callBack ();}} /// <summary> /// convert a method without parameters and return values to an Asynchronous Method /// </summary> /// <typeparam name = "T"> generic template type </typeparam> /// <param name = "srcFunc"> source method to be transferred </param> /// <param name = "callBack"> callBack </ param> public static async Task ToAsync <T> (Func <T> srcFunc, action <T> callBack) {Func <Task <T> task = () => {return Task <T>. run () =>{ return srcFunc () ;}; var result = await task (); if (callBack! = Null) {callBack (result );}}}}