二、答题步骤

1.python

下载附件得到，一看就是三原色

使用python脚本进行转换

#!/user/bin/env python
# -*-coding:utf-8 -*-
# Author:lip
from ast import literal_eval as make_tuple
from PIL import Image
f = open('flag.txt', 'r')
corl = [make_tuple(line) for line in f.readlines()]
f.close()
img0 = Image.new('RGB', (270, 270), '#ffffff')
k=0
for i in range(246):
    for j in range(246):
        img0.putpixel ([i , j], corl[k])
        k=k+1
img0.save("result.png")

得到图片

使用convert进行旋转

convert -flip -rotate 90 flag.ppm flag.png

总结

• python