一个非常实用的VB系统托盘演示程序，包含托盘图标的显示、删除、更改、气泡提示、托盘图标右键菜单操作等等，代码精炼高效，自带一个托盘图标的操作类，可以很方便移植到自己的程序上。-A very practical VB system tray demo program, including the tray icon display, delete, change, bubble tips, tray icon context menu operations, etc., code refining