查找文件并替换字符串

import string

import os

import struct

import re

import fileinput

import fnmatch

def walkDir(directory, ext='*.c', topdown=True):

    fileArray = []

    for root, dirs, files in os.walk(directory, topdown):

        for name in files:

            if fnmatch.fnmatch(name, ext):

                fileArray.append(os.path.abspath(os.path.join(root, name)))

    return fileArray

def replaceInFile(filename, strFrom, strTo):

    for line in fileinput.input(filename, inplace=True):

        if re.search(strFrom, line):

            line = line.replace(strFrom, strTo)

        print line,

for filename in walkDir('.', '*.c'):

    replaceInFile(filename, 'abc', 'cba')