VB检测自身被安装到的目录路径，本程序被安装到这个文件夹，获取到程序的安装路径，以弹窗方式告之，当然这仅是个例子，重点是路径的获龋-VB detection itself is installed into a directory path, the program is installed into this folder, access to the installation path of the program to pop way to tell, of course, this is only an example, the focus is the path for caries