此程序的功能为画出X，Y坐标，曲线，直线，并能对直线进行操作，而且可以对图形进行放大，缩小操作

此程序的功能为画出X，Y坐标，曲线，直线，并能对直线进行操作，而且可以对图形进行放大，缩小操作-The function of this procedure for the draw X, Y coordinates, curve, straight line, and is able to operate a straight line, but can also zoom in on graphics and narrow oper

很好的曲线绘制程序，能够进行曲线对比。VC源码！-Good curve drawing procedure, be able to carry out curve. VC-source!