一个网友发送了这个图片，这是什么意思呢？ 有两个线索:线索1:BLOCK 线索2: 如图 谜底为7位...

python
from PIL import Image
import matplotlib.pyplot as plt

img = Image.open('/mnt/data/IMG_8311.jpeg')
plt.imshow(img)
plt.axis('off')

(-0.5, 445.5, 502.5, -0.5)

python
letters = [1,5,9,13,17,21]
rows = [(9,0,9),(15,3,45),(78,85,7),(3,36,12),(17,8,25),(7,21,3)]
for idx,(a,b,c) in enumerate(rows):
    l=letters[idx]
    print(idx, l, a,b,c, a*b, a+b, a-b, a*b%100)

python
grid = ['A','9','0','9',
        'E','15','3','45',
        'I','78','85','7',
        'M','3','36','12',
        'Q','17','8','25',
        'U','7','21','3']
indices=[2,12,15,3,11]  # 1-based
vals=[grid[i-1] for i in indices]
vals

['9', '7', '36', '0', '85']

python
code=""
for v in vals:
    code+=str(v)
code

'9736085'