说明：  关于本教程，其实在很多学习者中，有一些人希望能偶尔学到些东西，虽不像系统那样学习，零零碎碎总结起来还是受益不少，本教程就是为这些人群制定的。最基本的判断依据是看到哪学到哪，而且以简短的语言来描述，就像用系统一样，不一定要成为高手，但求成为熟悉的使用者
(About this tutorial, in fact, many learners, there are some people hope to learn something occasionally, though not like the system as learning, summed up piecemeal or benefit from the many, this Guide is drawn up for these groups. Judgments based on the most basic is to see which school where, and to brief the language to describe, just as with systems, not necessarily to become a master, but rather to become familiar with the user)