easyx的基本使用一.基本框架1.创建文件2.创建窗体-initgraph,closegraph,getchar二.简单的绘制1.圆形-circle2.坐标系统-setorigin,setaspectratio三.简单图形1.绘制点-putpixel2.简单的直线-line3.矩形-rectangle4.椭圆-ellipse5.圆角矩形-roundrect6.扇形-pie7.圆弧-arc四.多边形1.绘制封闭图形-polygon2.绘制非封闭图形-polyline五.图形的样式1.描边1.边的颜色-setlinecolor2.边的样式-setlinestyle3.端点的样式-setlines