python读取指定目录中所有文本文件的第一行，并以此为该文本文件名重命名 python获取当前目录下很多文件夹的名称，然后重命名文件夹...
python\u8bfb\u5165\u4e00\u4e2atxt\u5e76\u5c06\u5176\u4e2d\u7684\u6570\u636e\u6309\u884c\u4f9d\u6b21\u4fdd\u5b58\u6210\u82e5\u5e72\u4e2atxt\u6587\u672c\u5e76\u4ee5\u6bcf\u4e00\u884c\u7684\u524d4\u4e2a\u5b57\u7b26\u4f5c\u4e3a\u65b0txt\u7684\u6587\u4ef6\u540d\u3002readline\u8bfb\u53d6\u884c\uff0c\u5207\u7247[:4]\u8bfb\u53d6\u547d\u540d\uff0c\u8bfb\u6587\u4ef6\u7528w\u6a21\u5f0f\u65b0\u5efa
for root,dirs,name in os.walk("."): for files in names: if files in ("1.mp4","thumb.png"): newname=os.basename(root) extname=os.path.splitext(files)[-1] os.rename(files,newname+extname)
import osos.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)
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