HistoryLine

代码说明：

说明：  一个显示历史数据曲线的程序源代码，压缩包中包含了历史数据文件和程序源码，在公司里用过很好用。开发环境VC++6.0，绘制曲线用的是MFC的CDC。(Curve of a display of historical data source code, compressed package that contains the historical data files and program source code, used in the company good use. Development Environment VC++6.0, MFC is used to draw curves of the CDC.)