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')