这个程序可以打开一张图片和保存图片，可以选择你要的颜色来画直线，画矩形，和画圆，并可以保存你画画的结果哦！你直接在eclipse建一个和我这个文件同名的类，然后把代码拷贝过去直接运行即可！-This program can open a picture and save the picture, can choose the color you wanted to draw a straight line, painting rectangular, and painting circle, and can save your drawing results oh! You directly in eclipse build a and I this file of the same name class, and then copy the code can be run directly!