一个自己编写的OPC异步读写类，其中包含使用说明，欢迎大家下载测试。本人使用在一个污水处理的项目中，没有出现什么问题。-An asynchronous read and write their own written OPC class, which contains instructions for use, are welcome to download the test. I used in a sewage treatment project, there was no problem.