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正则表达式re模块中用findall查找到的是ascii码，所以当比对替换时也需要对应的ascii码才能匹配成功。以下程序是查找文件夹下文件名中含有男、女的文件，并将男替换成1，将女替换成2的程序
# -*- coding: utf-8 -*-
import fnmatch
import os
import codecs
import re
import sys
def iterfindfiles(path, fnexp):
for root, dirs, files in os.walk(path):
for filename in fnmatch.filter(files, fnexp):
yield os.path.join(root, filename)
def fiterFiles():
path=raw_input("input dir:")
filterfiletype=raw_input("input file filter type:")
#quanjiao_2_banjiao(path)
for filename in iterfindfiles(path,filterfiletype):
SingerList=re.findall(‘\((..?)\)\.dat‘,filename)
for SingerName in SingerList:
if(SingerName==‘\xc4\xd0‘):
SingerName=‘1‘
new_filename=re.sub(‘\((..?)\)\.dat‘,‘(1).dat‘,filename)
print new_filename
os.rename(filename,new_filename)
#print SingerName
elif(SingerName==‘\xc5\xae‘):
SingerName=‘2‘
new_filename=re.sub(‘\((..?)\)\.dat‘,‘(2).dat‘,filename)
print new_filename
os.rename(filename,new_filename)
def main():
fiterFiles()
if __name__ == "__main__":
main()
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原文地址：http://www.cnblogs.com/dannyoung/p/4518250.html
