介绍了在LabVIEW5.0环境下通过CIN（代码接口结点）即利用其与C语言的接口扩展功能的方法，给出了在Win95环境下开发自制数采卡驱动程序的实例。-CIN (code interface node) the LabVIEW5.0 environment with C language interface extension function that, given the development of home-made data acquisition card driver in the Win95 environment instance.