固高科技GT400控制卡的VB开发的库函数源代码，在VB开发时点击工程，然后添加模块，选择此文件添加，即可与控制卡进行通讯。(The library function source code of the VB development of the high tech GT400 control card is clicked on the project in the development of VB, then the module is added and the file is add