LaTex中class和package的区别
class文件以.cls为后缀，package文件以.sty为后缀。
下面这篇文章讲明白了：
http://tex.loria.fr/general/new/clsguide.html
if the commands could be used with any document class, then make them a package; and if not, then make them a class.
就是全局和局部的区别。
class文件以.cls为后缀，package文件以.sty为后缀。
下面这篇文章讲明白了：
http://tex.loria.fr/general/new/clsguide.html
if the commands could be used with any document class, then make them a package; and if not, then make them a class.
就是全局和局部的区别。
