C#如何提前结束Sleep?

 1     public sealed class MySleep
 2     {
 3         private volatile bool _isSleep = true;
 4 
 5         public void Over()
 6         {
 7             _isSleep = false;
 8         }
 9 
10         public void Sleep(int ms)
11         {
12             const int baseTime = 10;
13 
14             if (ms < baseTime)
15             {
16                 System.Threading.Thread.Sleep(ms);
17             }
18             else
19             {
20                 int loopCount = ms / baseTime;  // 除以 baseTime，代表是 baseTime 毫秒的多少倍
21                 int surplusMS = ms % baseTime;  // 剩余毫秒数
22 
23                 while (_isSleep && loopCount > 0)
24                 {
25                     System.Threading.Thread.Sleep(baseTime);
26                     --loopCount;
27                 }
28 
29                 if (_isSleep && surplusMS > 0)
30                 {
31                     System.Threading.Thread.Sleep(surplusMS);
32                 }
33             }
34         }
35     }

 1         static void Main(string[] args)
 2         {
 3             var mySleep = new MySleep();
 4             System.Threading.Tasks.Task.Factory.StartNew(() =>
 5             {
 6                 Console.WriteLine("{0} : Sleep begin.", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
 7                 Stopwatch sw = new Stopwatch();
 8                 sw.Start();
 9                 mySleep.Sleep(10000);
10                 sw.Stop();
11                 Console.WriteLine("{0} : Sleep end.", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
12                 Console.WriteLine("Total sleep {0} ms", sw.ElapsedMilliseconds);
13             });
14 
15             Console.WriteLine("Press any key to stop sleep now.");
16             Console.ReadKey();
17             mySleep.Over();
18 
19             Console.WriteLine("Press any key to close the application.");
20             Console.ReadKey(true);
21         }