# -*- coding:utf-8*-import sysreload(sys)sys.setdefaultencoding('utf-8')import osimport os.pathfrom pyPdf import PdfFileReader,PdfFileWriterimport timetime1=time.time()# 使用os模塊walk函數(shù)，搜索出某目錄下的全部pdf文件######################獲取同一個(gè)文件夾下的所有PDF文件名#######################def getFileName(filepath):  file_list = []  for root,dirs,files in os.walk(filepath):    for filespath in files:      # print(os.path.join(root,filespath))      file_list.append(os.path.join(root,filespath))  return file_list##########################合并同一個(gè)文件夾下所有PDF文件########################def MergePDF(filepath,outfile):  output=PdfFileWriter()  outputPages=0  pdf_fileName=getFileName(filepath)  for each in pdf_fileName:    print each    # 讀取源pdf文件    input = PdfFileReader(file(each, "rb"))    # 如果pdf文件已經(jīng)加密，必須首先解密才能使用pyPdf    if input.isEncrypted == True:      input.decrypt("map")    # 獲得源pdf文件中頁面總數(shù)    pageCount = input.getNumPages()    outputPages += pageCount    print pageCount    # 分別將page添加到輸出output中    for iPage in range(0, pageCount):      output.addPage(input.getPage(iPage))  print "All Pages Number:"+str(outputPages)  # 最后寫pdf文件  outputStream=file(filepath+outfile,"wb")  output.write(outputStream)  outputStream.close()  print "finished"if __name__ == '__main__':  file_dir = r'D:/course/'  out=u"第一周.pdf"  MergePDF(file_dir,out)  time2 = time.time()  print u'總共耗時(shí)：' + str(time2 - time1) + 's'