批量查找多个文件中匹配的位置

许久未写python代码了，都生疏了。一定要多练啊。。

#! /usr/bin/env python# -*- coding: utf-8 -*-import os,redef listDir(path):    li=os.listdir(path)    return li;s=raw_input("please input the directory:")mPattern=raw_input("please input the pattern:")if len(s)==0:    s=u"E:\\实验\\两阶段"os.chdir(s)li=listDir(s)#print listDir(s)#print os.getcwd().decode('gb2312')#print lisave_dir="c:\\%s.txt" % mPatternout=open(save_dir,"w")for l in li:    if not os.path.isfile(l):        continue;    f=open(l.encode("utf-8"))    cnt=0;    lineno=1    for p in f.readlines():        r=re.findall(mPattern,p)        if len(r)>0:            if cnt==0:                 print "[",l.decode("gb2312"),"]"                 out.write("[ %s ]\n" % l)            cnt=cnt+1            print lineno ,":", p.decode("gb2312")            out.write("%d:%s\n" % (lineno,p))        lineno=lineno+1    f.close()out.close()