这是一个很简单的曲线绘制程序,绘制随机线,但是有闪屏问题没有解决,可以供编写上位机实时曲线显示的朋友参考.-This is a very simple curve drawing program, drawing random lines, but there are splash screen problem is not resolved, can be used for the preparation of host computer real-time curves show a fri