只运行一次托盘程序，C#的实现方法，功能有是否只显示系统托盘，是否不显示在托盘，是否在在任务栏上显示，总之都是与托盘有关-Run only one tray process, C# implementation of methods, functions are only display the system tray, does not appear in the tray, is displayed in the taskbar, in a word are related with the