Convert CSDN Blog to PDF while keeping all codes, images and formulas as they were. 转换CSDN博客到PDF格式，保持代码、图片和公式完全不变，方便打印留档.

0610 Updates:

• Fix : Crash when applying to the latest CSDN website 更新对新版本CSDN网站的适配
• Fix : Crash when saving some hidden blogs 更新对隐藏博文的忽略处理
• Fix : Malfuntion when crawling through multiple pages 修复多页博客的连续爬取故障

Old Updates:

• New : Update requirements.txt 新增安装需求文档
• New : Better look in HTML and PDF files 升级PDF和HTML显示效果
• Fix : Multiple crash happened when blog is not properly written 自适应博文不规范格式
• Fix : File saving error due to prohibited characters in file name 修复不规范博文名造成的崩溃

based on build.20190610

Python3 or Newer.

20181029更新：已添加requirements.txt，可以在文件夹中运行pip3 install -r requirements.txt进行环境一键配置！
要求安装shutil、bs4、pdfkit和wkhtmltopdf。
Requiring installation of shutil,bs4,pdfkitandwkhtmltopdf.
前三个可以直接用pip命令安装，wkhtmltopdf不是Python的库的安装链接如下：
wkhtmltopdf can be downloaded from the following web page:
https://wkhtmltopdf.org/

环境配置完成后，请直接用Python运行main.py或直接运行批处理run.bat，按照图形界面中的指示进行操作。下载后的博客都在csdn_blog文件夹下。
After installing those dependencies, you may run main.py or run.bat. Please follow the instructions in the pop-up window. The downloaded PDF & HTML files are all saved in the csdn_blog directory.