VC++ MFC绘制坐标系，串口通信，绘制曲线，有注释，基于MFC的dialogbased工程，关键词：MSCOM控件，CDC绘图，坐标系绘制，日期显示，动态显示曲线-VC++ MFC drawing coordinate system, serial communication, drawing curves, with notes, based on MFC' s dialogbased works Keywords: MSCOM control, CDC Graphics, coor