A data base management system was build by taking advantage of pc . we have designed correspondence software based on virtual instrument and front end interface using visual basic 6 . 0 软件方面,在windows98操作系统的平台上,以visualbasic6 . 0高级语言为工具,设计了相应的虚拟仪器软件系统,实现了程序代码和前端界面。