如何这几一个数据结构方法在白色画板上实现一个实心矩阵？

Question

如何这几一个数据结构方法在白色画板上实现一个实心矩阵？

题目2:
一个大小是M*N大小的白色画板P(r=255,g=255,b=255), 即M像素*N像素,每个像素由r、g、b共 3个颜色组成,每个颜色值是0~255。设计一个方法、数据结构，实现对这张白色图片绘制一些实心矩形。
函数声明大概是 draw(P, 矩形数据， 绘制颜色)，支持2种输出：A:打印图片结果 B：存到文件中(不需要读取功能)

可以打印结果(打印数值即可，不需要用图像api绘制) , PrintImg(P)： 
（r,g,b）(r,g,b) (r,g,b).....
（r,g,b）(r,g,b) (r,g,b).....
（r,g,b）(r,g,b) (r,g,b).....
...
存到文件中 , SaveImg(P)：
f = open(filename, 'w')
f.write(P)

不限语言（最好python）和环境，只需要写好函数(简单的注释)，或者提供思路

大佬们，最近被这个题难到了，有没有人能提供代码或者思路，谢谢谢谢

Answer 1

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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