. NET Timer timed execution

System.Timers.Timer can realize the function of database timer update

Global.asax

void Application_Start(object sender, EventArgs e) {    // 在应用程序启动时运行的代码    System.Timers.Timer timer = new System.Timers.Timer(1000);    timer.Elapsed += new System.Timers.ElapsedEventHandler(AddCount);    //AddCount是一个方法，此方法就是每个1秒而做的事情    timer.AutoReset = true;    //给Application["timer"]一个初始值    Application.Lock();    Application["timer"] = 1;    Application.UnLock();    timer.Enabled = true;}private void AddCount(object sender, System.Timers.ElapsedEventArgs e){    Application.Lock();    Application["timer"] = Convert.ToInt32(Application["timer"]) + 1;    //这里可以写你需要执行的任务，比如说，清理数据库的无效数据或增加每个用户的积分等等    Application.UnLock();}

The values defined in global are called in the page

string time = Application["timer"].ToString();Label1.Text = time;

. NET Timer timed execution