python实现任意位置文件分割的实例

#!/usr/bin/python
"""
./file_split.py, just for testing;
"""

import sys
import os
import re
from os.path import join

from array import array

import datetime

ORIGINAL_BIN = 'test.bin'

SPLIT_BIN1 = 'output/1.bin'
SPLIT_BIN2 = 'output/2.bin'
SPLIT_BIN3 = 'output/3.bin'


def main(argv):
  print "time:",datetime.datetime.now()
  print "Platform:",os.name

  if (os.path.exists('output') == False):
    os.mkdir('output')

  originalBin = open(ORIGINAL_BIN,'rb').read()
  originalBin = array('c', originalBin)

  bin1 = originalBin[0x0:0x4000]
  open(SPLIT_BIN1,'wb+').write(bin1)

  bin2 = originalBin[0x130000:0x130000+0x2000]
  open(SPLIT_BIN2,'wb+').write(bin2)

  bin3 = originalBin[0x160000:0x160000+0x2000]
  open(SPLIT_BIN3,'wb+').write(bin3)

  return 0


if __name__ == '__main__':
  main(sys.argv)

if (os.path.exists('output') == False):
  os.mkdir('output')

originalBin = open(ORIGINAL_BIN,'rb').read()
originalBin = array('c', originalBin)

bin1 = originalBin[0x0:0x4000]
open(SPLIT_BIN1,'wb+').write(bin1)