__author__ = 'Flying'#coding:utf-8#Date:2014.6.5#檢測修改過的文件import os,sys,hashlib,datetimeglobal_DirOld = ""global_DirNew = ""global_FilesList = []#輸入要比對的文件路徑def InputDirPath():    global global_DirOld,global_DirNew    global_DirOld = unicode(raw_input("請輸入備份文件所在目錄："),"utf-8")    while not os.path.exists(global_DirOld):        PRint  u"指定的路徑不存在，請重新輸入"        global_DirOld = unicode(raw_input("請輸入備份文件所在目錄："),"utf-8")    global_DirNew = unicode(raw_input("請輸入要檢測文件的目錄："),"utf-8")    while not os.path.exists(global_DirNew):        print  u"指定的路徑不存在，請重新輸入"        global_DirNew = unicode(raw_input("請輸入要檢測文件的目錄："),"utf-8")#將數據保存到文件中def SaveToFile(filePath,content):    try:        f = open(filePath,"a+")        f.write(content.encode("utf-8") + "/n")        f.close()    except Exception,ex:        print "Error:" + str(ex)#計算文件的MD5值def CalcMD5(filepath):    try:        #以二進制的形式打開        with open(filepath,'rb') as f:            md5obj = hashlib.md5()            md5obj.update(f.read())            hash = md5obj.hexdigest()            return hash    except Exception,ex:        print "Error:" + str(ex)        return None#遍歷目錄下的所有文件def GetAllSubFiles():    global global_FilesList    for dir in os.walk(global_DirNew):        for file in dir[2]:            filePath = dir[0] + os.sep + file            global_FilesList.append(filePath[len(global_DirNew)+1:])#列出新增文件和變動的文件def ListChangedFiles():    global global_DirOld,global_DirNew,global_FilesList    print u"變動或新增的文件："    for file in global_FilesList:        filePathOld = global_DirOld + os.sep + file        filePathNew = global_DirNew + os.sep + file        if not os.path.exists(filePathOld) or CalcMD5(filePathOld)!=CalcMD5(filePathNew):            content = "[" + datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')+ "]" + filePathNew            print content            SaveToFile("ChangedFiles.txt",content)if __name__=="__main__":    InputDirPath()    GetAllSubFiles()    ListChangedFiles()