OPC 客户端开发的例子，包括opc服务列举，连接，数据刷新等-OPC client development examples, including the services listed opc, connectivity, data refresh, etc.

opc 客户端程序，含源码，很实用，在实验中已采到数据的。-opc client program, including source code, it is practical, in the experiment has been taken to the data.

开发了一个基于组态后台的OPC客户端驱动，考虑到驱动的特殊性，所以只开发了同步接口操作。现把核心代码公开出来，有点VC基础的人可以直接拿来用。-The development of a configuration backend OPC client based on the drive, considering the particularity of the drive, so only the development of synchronous interface. We put the