此程序可实现：在可视化界面中随即生成一些图形（长方形、椭圆、圆、正方形）；程序会自动告诉你所生成的图形的形状并计算这些图形的面积；最后程序会自动统计各个图形的分布。-this procedure can be achieved : the visual interface immediately generated some graphics (rectangular, oval, round, square); the program will automatically tell you generated graphic shapes and calculate the size of these graphics; Finally the program will automatically statistical distribution of the various graphics.