.NET 冷知识之 System.Timers.Timer

对于定时器 System.Timers.Timer
启动后，即使定时器处于如下状态：

Timer.AutoReset = false;
Timer.Enabled = false;

改变 Timer.Interval 仍会引起定时器重新启动计时

参考：
https://social.msdn.microsoft.com/Forums/en-US/6b2181e0-94c5-499f-a9ae-cbabd4d016da/changing-interval-of-timer-while-enabled?forum=csharpgeneral
https://stackoverflow.com/questions/5478442/system-timers-timer-interval-resetting-causing-restart