吐血推荐 本人自己写的OPCClient程序 引用的是 OpcNetApiChs.dll 程序的每一行都有注释（光写注释写了一天） 初学者也能看得懂 -Recommended hematemesis I wrote it myself OPCClient procedure is invoked procedures OpcNetApiChs.dll Notes have each line (optical write notes to write a day) can be understo