C#随机设置900-1100毫秒延迟的方法

using System;
using System.Threading;
///<summary>
/// A time delay of 900..1100 milliseconds
///</summary>
namespace RobvanderWoude
{
 class WaitASecond
 {
  static void Main( string[] args )
  {
   // Choose a random delay between 900 
   //and 1100 milliseconds
   Random randomNums = new Random( );
   int delay = randomNums.Next( 900, 1100 );
   // Display the actual time delay 
   //if ANY command line parameter was passed
   if ( args.Length > 0 )
   {
    Console.WriteLine("waiting {0} milliseconds...",delay);
   }
   // Now wait...
   Thread.Sleep( delay );
  }
 }
}