Python批量修改文本文件內容

Python批量替換文件內容，支持嵌套文件夾

 1 import os
 2 path="./"
 3 for root,dirs,files in os.walk(path):
 4     for name in files:
 5         #print name
 6         if name.endswith(".html"):
 7             #print root,dirs,name 
 8             filename=root+"/"+name
 9             f=open(filename,"r")
10             filecontent=""
11             line=f.readline()  
12             while line:
13                 l=line.replace(":8081/arcgis_js_api","/arcgisapi")
14                 filecontent=filecontent+l
15                 line=f.readline()
16             f.close()
17             f2=file(filename,"w")
18             f2.writelines(filecontent)
19             f2.close()