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  1. import base64, struct
  2. bmp_data = base64.b64decode('Qk1oAgAAAAAAADYAAAAoAAAAHAAAAAoAAAABABAAAAAAADICAAASCwAAEgsAA' +
  3.                    'AAAAAAAAAAA/3//f/9//3//f/9//3//f/9//3//f/9//3//f/9//3//f/9//3//f/9//3/' +
  4.                    '/f/9//3//f/9//3//f/9/AHwAfAB8AHwAfAB8AHwAfP9//3//fwB8AHwAfAB8/3//f/9/A' +
  5.                    'HwAfAB8AHz/f/9//3//f/9//38AfAB8AHwAfAB8AHwAfAB8AHz/f/9//38AfAB8/3//f/9' +
  6.                    '//3//fwB8AHz/f/9//3//f/9//3//f/9/AHwAfP9//3//f/9/AHwAfP9//3//fwB8AHz/f' +
  7.                    '/9//3//f/9/AHwAfP9//3//f/9//3//f/9//38AfAB8AHwAfAB8AHwAfP9//3//f/9/AHw' +
  8.                    'AfP9//3//f/9//38AfAB8/3//f/9//3//f/9//3//fwB8AHwAfAB8AHwAfAB8/3//f/9//' +
  9.                    '38AfAB8/3//f/9//3//fwB8AHz/f/9//3//f/9//3//f/9/AHwAfP9//3//f/9/AHwAfP9' +
  10.                    '//3//fwB8AHz/f/9/AHz/f/9/AHwAfP9//38AfP9//3//f/9/AHwAfAB8AHwAfAB8AHwAf' +
  11.                    'AB8/3//f/9/AHwAfP9//38AfAB8AHwAfAB8AHwAfAB8/3//f/9//38AfAB8AHwAfAB8AHw' +
  12.                    'AfAB8/3//f/9/AHwAfAB8AHz/fwB8AHwAfAB8AHwAfAB8AHz/f/9//3//f/9//3//f/9//' +
  13.                    '3//f/9//3//f/9//3//f/9//3//f/9//3//f/9//3//f/9//3//f/9//38AAA==')
  14.  
  15. def bmp_info(data):
  16.     n = struct.unpack('<ccIIIIIIHH', data[:30])
  17.     if n[:2] == (b'B',b'M'):
  18.         width = n[6]
  19.         height = n[7]
  20.         color = n[9]
  21.     else:
  22.         print('this is not a BMP file.')
  23.         return None
  24.  
  25.     return {
  26.         'width': width,
  27.         'height': height,
  28.         'color': color
  29.     }
  30.  
  31. # 测试
  32. bi = bmp_info(bmp_data)
  33. assert bi['width'] == 28
  34. assert bi['height'] == 10
  35. assert bi['color'] == 16
  36. print('ok')
  37. # your code goes here
Success #stdin #stdout 0.12s 15672KB
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https://ideone.com/Kq3sTi
language:
Python 3 (python  3.12)
created:
15 days ago
visibility:
public

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