3.项目：从多个PDF中合并选择页面

#! python 3

# combinePdfs.py - Combines all the PDFs in the current working directory into a string PDF.

import PyPDF2,os

# Get all the PDF fileNames

pdfFiles = []

for filenamein os.listdir('.'):

    if filename.endswith('.pdf'):

        pdfFiles.append(filename)

        pdfFiles.sort(key = str.lower)

pdfWriter = PyPDF2.PdfFileWriter()

# LOOP through all the PDF files

for filename in pdfFiles:

    pdfFileObj =open(filename, 'rb')

    pdfReader = PyPDF2.PdfFileReader(pdfFileObj)

    # LOOP through all the pages (except the first) and add them.

    for pageNum in range(1,pdfReader.numPages):

        pageObj = pdfReader.getPage(pageNum)

        pdfWriter.addPage(pageObj)

# Save the resulting PDF to a file.

pdfOutputFile =open('all.pdf','wb')

pdfWriter.write(pdfOutputFile)

pdfOutputFile.close()

遇到的问题：

1.Python中List的sort的用法：pdfFiles.sort(key = str.lower)  

2.Python中路径拼接：pdfFileObj =open(filename, 'rb')