Python之OS（系统操作）模块常用函数

mkdir(path[, mode=0777])

makedirs(name,mode=511)

rmdir(path)

removedirs(path)

listdir(path)

getcwd()

chdir(path)

walk(top, topdown=True, onerror=None)　　返回一个元组：(遍历的路径，目录，文件列表)

---

我们来遍历一下文件：

>>> for path, dir, filename in os.walk('/home/branches/python/testdir'):
...     for filen in filename:
...             os.path.join(path, filen)
... 
'/home/branches/python/testdir/f1'
'/home/branches/python/testdir/f2'
'/home/branches/python/testdir/f3'
'/home/branches/python/testdir/jpg/0.ipg'
'/home/branches/python/testdir/jpg/3.ipg'
'/home/branches/python/testdir/jpg/2.ipg'
'/home/branches/python/testdir/jpg/1.ipg'
'/home/branches/python/testdir/jpg/get_img.py'
>>> 
>>> 
>>> 
>>> for path, dir, filename in os.walk('testdir'):
...     for filen in filename:
...             os.path.join(path, filen)
... 
'testdir/f1'
'testdir/f2'
'testdir/f3'
'testdir/jpg/0.ipg'
'testdir/jpg/3.ipg'
'testdir/jpg/2.ipg'
'testdir/jpg/1.ipg'
'testdir/jpg/get_img.py'
>>> 

#!/usr/bin/python
#coding:utf8

import os

def dirList(path):      # 列出当前目录下的完整路径名
        filelist = os.listdir(path)
        # fpath = os.getcwd()   # 它获取的是程序所在路径
        allfile = []
        for filename in filelist:
                # allfile.append(fpath  + '/' + filename)
                filepath = os.path.join(path, filename) # 用os模块的方法进行路径拼接
                if os.path.isdir(filepath):
                        dirList(filepath)
                print filepath  

allfile = dirList('/home/branches/python/testdir')