相信使用NetBeans IDE的同学，在创建文件时会发现下面默认一段代码。这代码是怎么产生的呢，让我们研究一下：
/*
* To change this template, choose Tools | Templates* and open the template in the editor.
*/
英文再不好，猜也能猜出来，让你去“工具”-“模板”下去修改或创建这个代码模板，怎么样猜得还行吧。
如我们要创建这个：
<?php
/**
* Description of ${name}
*
* ${encoding},${time},${date}
* @author zch
*/
class ${name} extends CI_Model{
}
/* End of file ${name}.php */
/* Location: ./application/models/${name}.php */
见下面，有一些变量也是经常用到的，这对团队合作，和代码维修，还有你的工作效率帮助不少哟，“工欲善其事，必先利其器”，对吧？
- ${date} inserts the current date, in this format: Feb 16, 2008
- ${encoding} inserts the default encoding, such as: UTF-8
- ${name} inserts the name of the file.
- ${nameAndExt} inserts the name of the file, together with its extension.
- ${package} inserts the name of the package where the file is created.
- ${time} inserts the current time, in this format: 7:37:58 PM
- ${user} inserts the user name.