ParameterizedThreadStart

 1 using System;  
 2 using System.Threading;  
 3 public class Work  
 4 {  
 5     public static void Main()  
 6     {  
 7       Thread newThread = new Thread(  
 8                          new ParameterizedThreadStart(doWork)  
 9                          );  
10       newThread.start("456");  
11 
12       public static void doWork(object ob)  
13       {  
14         Console.WriteLine("123" + ob.ToString());  
15       }  
16 
17     }  
18 }