清单3显示了如何绘制线、矩形、圆(使用椭圆)及椭圆。

Listing 3 shows how to draw lines, rectangles, circles (using the ellipse), and ellipses.

youdao

清单3显示了如何绘制线、矩形、圆(使用椭圆)及椭圆。

Listing 3 shows how to draw lines, rectangles, circles (using the ellipse), and ellipses.

youdao