1 public class BF_CheckUpdate
 2     {
 3         private static object LockObject = new Object();
 4 
 5         // 定义数据检查Timer
 6         private static Timer CheckUpdatetimer = new Timer();
 7 
 8         // 检查更新锁
 9         private static int CheckUpDateLock = 0;
10 
11         ///
12         /// 设定数据检查Timer参数
13         ///
14         internal static void GetTimerStart()
15         {
16             // 循环间隔时间(10分钟)
17             CheckUpdatetimer.Interval = 600000;
18             // 允许Timer执行
19             CheckUpdatetimer.Enabled = true;
20             // 定义回调
21             CheckUpdatetimer.Elapsed += new ElapsedEventHandler(CheckUpdatetimer_Elapsed);
22             // 定义多次循环
23             CheckUpdatetimer.AutoReset = true;
24         }
25 
26         ///
27         /// timer事件
28         ///
29         ///
30         ///
31         private static void CheckUpdatetimer_Elapsed(object sender, ElapsedEventArgs e)
32         {
33            // 加锁检查更新锁
34             lock (LockObject)
35             {
36                 if (CheckUpDateLock == 0) CheckUpDateLock = 1;
37                 else return;
38             }         
39           
40            //More code goes here.
41           //具体实现功能的方法
42            Check();
43               // 解锁更新检查锁
44             lock (LockObject)
45             {
46                 CheckUpDateLock = 0;
47             }            
48         }
49 }