MFC下画直线的算法具体实现，主要用的了DrawLine函数-MFC drawing a straight line under the concrete realization of the algorithm, the main use of the DrawLine function

该源码为MFC编写的一个可以实现用鼠标勾画轨迹的程序，下载后可直接运行-The source code for the MFC can be achieved, prepared a sketch with the mouse trajectory program, after downloading, can be directly run

MFC橡皮线的实现，适合初学MFC的童鞋们参考-MFC DrawLine