LabVIEW为创建分布式应用提供了多种多样的技术接口。LabVIEW 8中引入的共享变量为简化编程应用向前迈出了重大一步。本文将介绍共享变量，并讨论LabVIEW 8.20和LabVIEW 8.5中它的特征和性能。-LabVIEW for creating distributed applications provide a wide range of technical interfaces. LabVIEW 8 shared variable introduced to simplify application programming has taken a major step forward. This article will introduce the shared variables, and discuss in LabVIEW 8.5 LabVIEW 8.20 and its features and performance.