import os
os.listdir("")#遍历当前目录文件
os.rename(“老文件”,“新文件”)
例:
http://zhidao.baidu.com/question/121607089.html读
aa=os.open("文件","r")
aa.next()
aa.close()#关闭打开文件
代码:
#coding=utf-8
import os
ul=r"C:\xxx\xxx\xxx\aaa"#我的文件在aaa文件夹下
filenamelist=os.listdir(ul)
for y in xrange(len(filenamelist)):
txtread=open(ul+"/"+filenamelist[y],"r")
modname=txtread.next()
txtread.close()
newurl=ul+ "/"+modname[:-1]+".txt"
os.rename(os.path.join(ul,filenamelist[y]),newurl)本回答被提问者采纳