vc++自编的单文档程序，将主窗口分割成三个窗口：树形控制区，曲线显示区和数据显示区，能够实现数据的读取和显示，曲线的绘制以及简单的放大和缩小功能。-vc++ composing a single document procedure will be the main window split into three windows: a tree-controlled areas, curve display and data display area that can read and dis