导出目录下文件名--python实例
实验环境 CentOS，将所有目录名称保存在特定目录的 pickname.txt 文档里。
#!/usr/bin/python
# name:pickname.py
# author:wubolu
# data:20110727
import os
dirname=raw_input("Enter dirname:\n")
if os.path.isdir(dirname):
??? listname=os.listdir(dirname)
??? r=open('pickname.txt','w')
??? for i in listname:
??? ??? r.write(i+'\n')
??? r.close()
else:
??? print "Without this path or not a path, try agin.\n"
