The idea of retrorse link is mentioned above, I talk how to should be linked reversely to increase as a programmer now from the method that adds retrorse link do work of a few SEO.

• 上面提到反向链接的概念，现在我就从增加反向链接的方法来谈谈作为一个程序员应该怎么为增加反向链接做一些SEO工作。