本程序绘制规则曲线，绘制正弦曲线和余弦曲线，并可以通过设置振幅和频率来改变曲线的参数。

一个使用VB完成的函数曲线绘图小程序，可以实现基本的三角函数绘制，如正弦，余弦，正切等-a VB completed mapping function curves small programs, can achieve a basic trigonometry mapping, such as sine, cosine, tangent, etc.

编写一个绘制曲线的程序。菜单可选绘制正余弦等经典曲线。 可以调整线的颜色和粗细-Write a program to draw curves. Draw menu options and other classic sine and cosine curve. You can adjust the color and thickness of the line