通过使用OPENCASCADE一些函数，在VC++平台上使用，进行三维机械零件轴的绘制，可以通过改变代码参数，快速实现三维轴模型的建立，简单方便。(By using some functions of OPENCASCADE, we can use the VC++ platform to draw the axis of 3D mechanical parts. We can quickly change the code parameters to achieve the establish