windows自带的经典画图板的源程序。有绘直线，单像素画笔，橡皮、绘矩形、颜色填充的功能-windows that comes with the classic drawing board of the source. Have drawn a straight line, single-pixel brush, rubber, painted rectangle, color fill function

对屏幕进行不同颜色的区域划分，滚动的单像素线条主要应用于对高分显示器的像素点进行检测，包括单个像素点的亮点，暗点，坏点以及整体的屛质进行检查。-For high-resolution monitor pixel test.