做的是一个画图板,画直线,曲线,各种图形,以及可以调整线的粗细,颜色等,还有一些基本的图像处理功能,锐化,平滑,高斯模糊等.最后还能对图像进行保存和打开.-Do is a drawing board, drawing lines, curves, various graphics, and you can adjust the line thickness, color, etc., there are some basic image