#! /usr/bin/env python

-- coding: utf-8 --
@author zcwang3@gmail.com
@version 2010-09-25 14:57
import os

import time
sourceDir = r"\\192.168.3.250\mmtimages" 
targetDir = r"D:\mmtimages" 
copyFileCounts = 0
def copyFiles(sourceDir, targetDir):

    global copyFileCounts

    print sourceDir

    print u"%s 當前處理文件夾%s已處理%s 個文件" %(time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())), sourceDir,copyFileCounts)

    for f in os.listdir(sourceDir):

        sourceF = os.path.join(sourceDir, f)

        targetF = os.path.join(targetDir, f)

    if os.path.isfile(sourceF):  
        #創建目錄  
        if not os.path.exists(targetDir):  
            os.makedirs(targetDir)  
        copyFileCounts += 1 

        #文件不存在，或者存在但是大小不同，覆蓋  
        if not os.path.exists(targetF) or (os.path.exists(targetF) and (os.path.getsize(targetF) != os.path.getsize(sourceF))):  
            #2進制文件  
            open(targetF, "wb").write(open(sourceF, "rb").read())  
            print u"%s %s 復制完畢" %(time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())), targetF)  
        else:  
            print u"%s %s 已存在，不重復復制" %(time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time())), targetF)  

    if os.path.isdir(sourceF):  
        copyFiles(sourceF, targetF)  


if name == "main":

    try:

        import psyco

        psyco.profile()

    except ImportError:

        pass 
    copyFiles(sourceDir,targetDir)</pre>