Delphi在窗体上直接绘图，可画出椭圆 直线，可选择画笔，不过挺简单，作为delphi画图的基础知识还是不错的，源码直接在Delphi7中编译生成EXE。

-Delphi drawing directly on the form, you can draw a straight line ellipse, select the brush, but very simple, as delphi basics of drawing is good, source code directly in the compiled EXE in Delphi7.