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')