WhyCan Forum(哇酷开发者社区)

#!/usr/bin/python3
import os
import binascii

def CRC32_from_file(filename):
    f = open(filename,'rb')
    buf = f.read()
    crc32 = (binascii.crc32(buf) & 0xFFFFFFFF)
    f.close()
    return crc32

zimage = "zImage"

crc32 = CRC32_from_file(zimage)

file_dst = open("out.img", "wb")

###可执行文件的crc32校验码###
file_dst.write(crc32.to_bytes(4, 'little'))

file_dst.close();