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莪最近在查看别人的源码、发现他定义的字符串前面都有个r、是什么意思

时间：2011-07-19

来源：互联网

本帖最后由 klobodnf 于 2011-07-19 11:52 编辑

莪最近在查看别人的源码、发现他定义的字符串前面都有个r、是什么意思
zip = r"E:\program\7-Zip\7z.exe"
flFileList = open(r"G:\impl\build\path.txt", 'r')

为了帮助大家理解、莪把代码完整的贴出来吧

#!/usr/bin/python
# encoding:utf-8
# Filename: copyFileFromList.py
import os
import sys
import time
import shutil
zip = r"E:\program\7-Zip\7z.exe"
flFileList = open(r"G:\impl\build\path.txt", 'r')
flFileSourceHistory = open(r"G:\impl\build\SourceDirHistory.txt", 'w')
dirZipDest = r"I:\pre-realease\201107"
dtDestRoot = {}
dtDestRoot['zoshow'] = r'G:\impl\zip\zoshow'
dtDestRoot['xiutuan'] = r'G:\impl\zip\xiutuan'
dtDestRoot['tuanhuo'] = r'G:\impl\zip\tuanhuo'
dtDestRoot['365wine'] = r'G:\impl\zip\365wine'
dtDestRoot['search'] = r'G:\impl\zip\search'
dtDestRoot['newcms'] = r'G:\impl\zip\newcms'
dtDestRoot['zuc'] = r'G:\impl\zip\zuc'
dtDestRoot['thexiucms'] = r'G:\impl\zip\thexiucms'
sSelectProject = """
Please select a project:
zoshow
xiutuan
tuanhuo
365wine
search
newcms
zuc
thexiucms
Enter choice: """
sourceRoot = raw_input('enter source root: ')
if not os.path.exists(sourceRoot):
print '文件夹不存在: ' + sourceRoot
sys.exit()
# 检查是否存在目标文件夹(destRoot)，如果存在则重命名备份，不存在则新建文件夹。
destRootChoice = raw_input(sSelectProject)
if destRootChoice in dtDestRoot.keys():
destRoot = dtDestRoot[destRootChoice]
if os.path.exists(destRoot):
os.rename(destRoot, destRoot + '_bak' + time.strftime('%Y%m%d') + '-' + time.strftime('%H%M'))
os.mkdir(destRoot)
else:
os.mkdir(destRoot)
else:
print 'no such project'
sys.exit()
#destRoot = raw_input('enter dest root: ')
#if os.path.exists(destRoot):
# os.rename(destRoot, destRoot + '_bak' + time.strftime('%Y%m%d') + '-' + time.strftime('%H%M'))
# os.mkdir(destRoot)
#else:
# os.mkdir(destRoot)
ltFile = flFileList.readlines()
for singleFile in ltFile:
singleFile = singleFile.strip()
if (os.path.exists(singleFile) and os.path.isfile(singleFile)):
sourceFolder = os.path.split(singleFile)[0]
destFolder = destRoot + sourceFolder.replace(sourceRoot, '')
if not os.path.exists(destFolder):
os.makedirs(destFolder)
shutil.copy2(singleFile, destFolder)
#print singleFile, destFolder
flFileSourceHistory.close()
flFileList.close()
dir2Zip = destRoot
flZip = os.path.split(destRoot)[0] + os.sep + os.path.split(destRoot)[1] + '-' + time.strftime('%Y%m%d') + '-' + time.strftime('%H%M') + '.zip'
zip_command = "%s a -tzip %s %s" % (zip, flZip, dir2Zip)
os.system(zip_command)
# 移动到I:\pre-realease\
os.rename(flZip, dirZipDest + os.sep + os.path.split(flZip)[1])
print "move %s to \n%s" % (flZip, dirZipDest + os.sep + os.path.split(flZip)[1])

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