#!/usr/bin/env python
import os
import shutil
delList = []
delDir = "/home/test"
delList = os.listdir(delDir )
for f in delList:
  filePath = os.path.join( delDir, f )
  if os.path.isfile(filePath):
    os.remove(filePath)
    print filePath + " was removed!"
  elif os.path.isdir(filePath):
  shutil.rmtree(filePath,True)
    print "Directory: " + filePath +" was removed!"

#1.1
s = os.getcwd()
# s 中保存的是当前的执行目录(即执行所在的文件夹)

#1.2
import os
import time
folder = time.strftime(r"%Y-%m-%d_%H-%M-%S",time.localtime())
os.makedirs(r'%s/%s'%(os.getcwd(),folder))

os.chdir( "/root/123")
#将当前目录设为 "/root/123"
#说明： 当指定的目录不存在时，引发异常。

fpath , fname = os.path.split( "你要分解的路径")

a, b = os.path.split( "/root/123/test.txt" )
print a
print b

/root/123/
test.txt

fpathandname , fext = os.path.splitext( "你要分解的路径")

a, b = os.path.splitext( "/root/123/test.txt" )
print a
print b

/root/123/test
.txt

b = os.path.exists( "你要判断的路径")

b = os.path.isfile( "你要判断的路径")

b = os.path.isdir( "你要判断的路径")

L = os.listdir( "你要判断的路径")

L = os.listdir( "/root/123" )
print L

[‘test.txt', ‘test.py','python']
#这里面既有文件也有子目录

os.makedirs( path )  # path 是"要创建的子目录"

os.makedirs("/root/123")

os.remove(  filename )  # filename: "要删除的文件名"

os.name( oldfileName, newFilename)