2021-03-24 定时器 执行一次没执行完 下一次时间到了，可以这样处理

private System.Double interval_ = 20000;
public void onStartToSetPriviceFile()
{
System.String service_path = this.Get_WindowService_Path();
interval_ = this.GetWindowServiceTimers();
System.Timers.Timer timer3 = new System.Timers.Timer { Interval = interval };
_timer3.Elapsed += SetTimerContrast;
_timer3.Enabled = true;
_timer3.AutoReset = false;//false:仅一次触发，true：重复触发
_timer3.Start();
}

public void SetTimerContrast(object source, System.Timers.ElapsedEventArgs e){
try{}
finally {
System.Timers.Timer timer3 = new System.Timers.Timer { Interval = interval };
_timer3.Elapsed += SetTimerContrast;
_timer3.Enabled = true;
_timer3.AutoReset = false;//false:仅一次触发，true：重复触发
_timer3.Start();

        }

}