由于各种编程语言特点各异,因此,在一个控制系统中经常出现几种编程语言共存的情况,它们之间的通讯就显得尤为重要。结合“973”项目为背景,阐述VC、MatLab、LabVIEW之间通过DDE 实现数据交换。-Due to different characteristics of a variety of programming languages, therefore, often in a control system in the coexistence of several programming languages, the communication between them is particularly important. The " 973"　project as the background on VC, MatLab, LabVIEW data exchange via DDE.