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HomeBackend DevelopmentPython TutorialIntroduction to the method of copying and deleting files in Python

用python实现了一个小型的工具。其实只是简单地把debug 目录下的配置文件复制到指定目录,把Release下的生成文件复制到同一指定,过滤掉不需要的文件夹(.svn),然后再往这个指定目录添加几个特定的文件。

    这个是我的第一个python小程序。

    下面就来看其代码的实现。

首先插入必要的库:

import os 
import os.path 
import shutil 
import time, datetime

然后就是一大堆功能函数。第一个就是把某一目录下的所有文件复制到指定目录中:

def copyFiles(sourceDir, targetDir): 
if sourceDir.find(".svn") >0: 
return 
for file in os.listdir(sourceDir): 
sourceFile = os.path.join(sourceDir, file) 
targetFile = os.path.join(targetDir, file) 
if os.path.isfile(sourceFile): 
if not os.path.exists(targetDir): 
os.makedirs(targetDir) 
 if not os.path.exists(targetFile) or(os.path.exists(targetFile) and (os.path.getsize(targetFile) != os.path.getsize(sourceFile))): 
 open(targetFile, "wb").write(open(sourceFile, "rb").read()) 
 if os.path.isdir(sourceFile): 
 First_Directory = False 
 copyFiles(sourceFile, targetFile)

删除一级目录下的所有文件:

def removeFileInFirstDir(targetDir): 
for file in os.listdir(targetDir): 
targetFile = os.path.join(targetDir, file) 
if os.path.isfile(targetFile): 
os.remove(targetFile)

复制一级目录下的所有文件到指定目录:

def coverFiles(sourceDir, targetDir): 
for file in os.listdir(sourceDir): 
sourceFile = os.path.join(sourceDir, file) 
targetFile = os.path.join(targetDir, file) 
#cover the files 
if os.path.isfile(sourceFile): 
open(targetFile, "wb").write(open(sourceFile, "rb").read())

复制指定文件到目录:

def moveFileto(sourceDir, targetDir):
shutil.copy(sourceDir, targetDir)

往指定目录写文本文件:

def writeVersionInfo(targetDir): 
open(targetDir, "wb").write("Revison:")

返回当前的日期,以便在创建指定目录的时候用:

def getCurTime(): 
nowTime = time.localtime() 
year = str(nowTime.tm_year) 
month = str(nowTime.tm_mon) 
if len(month) <2: 
month =&#39;0&#39;+ month 
day = str(nowTime.tm_yday) 
if len(day) <2: 
day =&#39;0&#39;+ day 
 return (year +&#39;-&#39;+ month +&#39;-&#39;+ day)

然后就是主函数的实现了:

if __name__ =="__main__": 
print "Start(S) or Quilt(Q) \n" 
flag = True 
while (flag): 
answer = raw_input() 
if&#39;Q&#39;== answer: 
flag = False 
elif &#39;S&#39;== answer : 
formatTime = getCurTime() 
 targetFoldername ="Build "+ formatTime +"-01" 
 Target_File_Path += targetFoldername
 
 copyFiles(Debug_File_Path, Target_File_Path) 
 removeFileInFirstDir(Target_File_Path) 
 coverFiles(Release_File_Path, Target_File_Path) 
 moveFileto(Firebird_File_Path, Target_File_Path) 
 moveFileto(AssistantGui_File_Path, Target_File_Path) 
 writeVersionInfo(Target_File_Path+"\\ReadMe.txt") 
 print "all sucess" 
 else: 
 print "not the correct command"

    感觉是果然简单, 不过简单的原因是因为库函数丰富,语言基本特性的简单真没感觉出来。

我们再来看一个实例

本人一直用foobar2000作为音乐播放器,听歌时候把自己喜欢的歌都会特别添加到一个播放列表。

自己用iphone,同步歌曲的时候需要用到itunes,而itunes却没有我用foobar2000的精选播放列表呢~

本人只好定期把播放列表的mp3文件拷贝到一个目录,我用itunes只需同步这个目录即可
(顺便吐槽下itunes不好使,在后期我都直接用其他同步工具代替之)

播放列表是*.m3u格式的文本,用记事本打开可以看到mp3的绝对路径。

直接贴代码吧,写得比较仓促,各位将就参考下即可:

#coding=gbk  
import sys, shutil, os, string 
mp3List = "F:\\My Documents\\mp3list\\默认精选.m3u" 
destDir = "G:\\POP\\默认精选" 
 
def cpFile(srcPath): 
  fileName = os.path.basename(srcPath) 
  destPath = destDir + os.path.sep + fileName 
  if os.path.exists(srcPath) and not os.path.exists(destPath): 
    print &#39;cp %s %s&#39; % (srcPath,destPath) 
    shutil.copy(srcPath,destPath) 
 
if __name__ == &#39;__main__&#39;: 
  f = file(mp3List, &#39;r&#39;) 
  lists = f.readlines() 
  for i in lists: 
    cpFile(string.strip(i)) 
     
  f.close()


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