phpcms首页的html模板是怎么加载的呢

phpcms首页的html模板是如何加载的呢
怎么看也没有看出来,它的入口文件是如何加载html首页模板的.
有一个basee.php类,好象负责加载的,但是里面有点看不懂它怎么载的呢

<?php<br />/**<br /> *  base.php PHPCMS框架入口文件<br /> *<br /> * @copyright			(C) 2005-2010 PHPCMS<br /> * @license				http://www.phpcms.cn/license/<br /> * @lastmodify			2010-6-7<br /> */<br />define('IN_PHPCMS', true);<br /><br />//PHPCMS框架路径<br />define('PC_PATH', dirname(__FILE__).DIRECTORY_SEPARATOR);<br /><br />if(!defined('PHPCMS_PATH')) define('PHPCMS_PATH', PC_PATH.'..'.DIRECTORY_SEPARATOR);<br /><br />//缓存文件夹地址<br />define('CACHE_PATH', PHPCMS_PATH.'caches'.DIRECTORY_SEPARATOR);<br />//主机协议<br />define('SITE_PROTOCOL', isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://');<br />//当前访问的主机名<br />define('SITE_URL', (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : ''));<br />//来源<br />define('HTTP_REFERER', isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '');<br /><br />//系统开始时间<br />define('SYS_START_TIME', microtime());<br /><br />//加载公用函数库<br />pc_base::load_sys_func('global');<br />pc_base::load_sys_func('extention');<br />pc_base::auto_load_func();<br /><br />pc_base::load_config('system','errorlog') ? set_error_handler('my_error_handler') : error_reporting(E_ERROR | E_WARNING | E_PARSE);<br />//设置本地时差<br />function_exists('date_default_timezone_set') && date_default_timezone_set(pc_base::load_config('system','timezone'));<br /><br />define('CHARSET' ,pc_base::load_config('system','charset'));<br />//输出页面字符集<br />header('Content-type: text/html; charset='.CHARSET);<br /><br />define('SYS_TIME', time());<br />//定义网站根路径<br />define('WEB_PATH',pc_base::load_config('system','web_path'));<br />//js 路径<br />define('JS_PATH',pc_base::load_config('system','js_path'));<br />//css 路径<br />define('CSS_PATH',pc_base::load_config('system','css_path'));<br />//img 路径<br />define('IMG_PATH',pc_base::load_config('system','img_path'));<br />//动态程序路径<br />define('APP_PATH',pc_base::load_config('system','app_path'));<br /><br />//应用静态文件路径<br />define('PLUGIN_STATICS_PATH',WEB_PATH.'statics/plugin/');<br /><br />if(pc_base::load_config('system','gzip') && function_exists('ob_gzhandler')) {<br />	ob_start('ob_gzhandler');<br />} else {<br />	ob_start();<br />}<br /><br />class pc_base {<br />	<br />	/**<br />	 * 初始化应用程序<br />	 */<br />	public static function creat_app() {<br />		return self::load_sys_class('application');<br />	}<br />	/**<br />	 * 加载系统类方法<br />	 * @param string $classname 类名<br />	 * @param string $path 扩展地址<br />	 * @param intger $initialize 是否初始化<br />	 */<br />	public static function load_sys_class($classname, $path = '', $initialize = 1) {<br />			return self::_load_class($classname, $path, $initialize);<br />	}<br />	<br />	/**<br />	 * 加载应用类方法<br />	 * @param string $classname 类名<br />	 * @param string $m 模块<br />	 * @param intger $initialize 是否初始化<br />	 */<br />	public static function load_app_class($classname, $m = '', $initialize = 1) {<br />		$m = empty($m) && defined('ROUTE_M') ? ROUTE_M : $m;<br />		if (empty($m)) return false;<br />		return self::_load_class($classname, 'modules'.DIRECTORY_SEPARATOR.$m.DIRECTORY_SEPARATOR.'classes', $initialize);<br />	}<br />	<br />	/**<br />	 * 加载数据模型<br />	 * @param string $classname 类名<br />	 */<br />	public static function load_model($classname) {<br />		return self::_load_class($classname,'model');<br />	}<br />		<br />	/**<br />	 * 加载类文件函数<br />	 * @param string $classname 类名<br />	 * @param string $path 扩展地址<br />	 * @param intger $initialize 是否初始化<br />	 */<br />	private static function _load_class($classname, $path = '', $initialize = 1) {<br />		static $classes = array();<br />		if (empty($path)) $path = 'libs'.DIRECTORY_SEPARATOR.'classes';<br /><br />		$key = md5($path.$classname);<br />		if (isset($classes[$key])) {<br />			if (!empty($classes[$key])) {<br />				return $classes[$key];<br />			} else {<br />				return true;<br />			}<br />		}<br />		if (file_exists(PC_PATH.$path.DIRECTORY_SEPARATOR.$classname.'.class.php')) {<br />			include PC_PATH.$path.DIRECTORY_SEPARATOR.$classname.'.class.php';<br />			$name = $classname;<br />			if ($my_path = self::my_path(PC_PATH.$path.DIRECTORY_SEPARATOR.$classname.'.class.php')) {<br />				include $my_path;<br />				$name = 'MY_'.$classname;<br />			}<br />			if ($initialize) {<br />				$classes[$key] = new $name;<br />			} else {<br />				$classes[$key] = true;<br />			}<br />			return $classes[$key];<br />		} else {<br />			return false;<br />		}<br />	}<br />	<br />	/**<br />	 * 加载系统的函数库<br />	 * @param string $func 函数库名<br />	 */<br />	public static function load_sys_func($func) {<br />		return self::_load_func($func);<br />	}<br />	<br />	/**<br />	 * 自动加载autoload目录下函数库<br />	 * @param string $func 函数库名<br />	 */<br />	public static function auto_load_func($path='') {<br />		return self::_auto_load_func($path);<br />	}<br />	<br />	/**<br />	 * 加载应用函数库<br />	 * @param string $func 函数库名<br />	 * @param string $m 模型名<br />	 */<br />	public static function load_app_func($func, $m = '') {<br />		$m = empty($m) && defined('ROUTE_M') ? ROUTE_M : $m;<br />		if (empty($m)) return false;<br />		return self::_load_func($func, 'modules'.DIRECTORY_SEPARATOR.$m.DIRECTORY_SEPARATOR.'functions');<br />	}<br />	<br />	/**<br />	 * 加载插件类库<br />	 */<br />	public static function load_plugin_class($classname, $identification = '' ,$initialize = 1) {<br />		$identification = empty($identification) && defined('PLUGIN_ID') ? PLUGIN_ID : $identification;<br />		if (empty($identification)) return false;<br />		return pc_base::load_sys_class($classname, 'plugin'.DIRECTORY_SEPARATOR.$identification.DIRECTORY_SEPARATOR.'classes', $initialize);<br />	}<br />	<br />	/**<br />	 * 加载插件函数库<br />	 * @param string $func 函数文件名称<br />	 * @param string $identification 插件标识<br />	 */<br />	public static function load_plugin_func($func,$identification) {<br />		static $funcs = array();<br />		$identification = empty($identification) && defined('PLUGIN_ID') ? PLUGIN_ID : $identification;<br />		if (empty($identification)) return false;<br />		$path = 'plugin'.DIRECTORY_SEPARATOR.$identification.DIRECTORY_SEPARATOR.'functions'.DIRECTORY_SEPARATOR.$func.'.func.php';<br />		$key = md5($path);<br />		if (isset($funcs[$key])) return true;<br />		if (file_exists(PC_PATH.$path)) {<br />			include PC_PATH.$path;<br />		} else {<br />			$funcs[$key] = false;<br />			return false;<br />		}<br />		$funcs[$key] = true;<br />		return true;<br />	}<br />	<br />	/**<br />	 * 加载插件数据模型<br />	 * @param string $classname 类名<br />	 */<br />	public static function load_plugin_model($classname,$identification) {<br />		$identification = empty($identification) && defined('PLUGIN_ID') ? PLUGIN_ID : $identification;<br />		$path = 'plugin'.DIRECTORY_SEPARATOR.$identification.DIRECTORY_SEPARATOR.'model';<br />		return self::_load_class($classname,$path);<br />	}<br />	<br />	/**<br />	 * 加载函数库<br />	 * @param string $func 函数库名<br />	 * @param string $path 地址<br />	 */<br />	private static function _load_func($func, $path = '') {<br />		static $funcs = array();<br />		if (empty($path)) $path = 'libs'.DIRECTORY_SEPARATOR.'functions';<br />		$path .= DIRECTORY_SEPARATOR.$func.'.func.php';<br />		$key = md5($path);<br />		if (isset($funcs[$key])) return true;<br />		if (file_exists(PC_PATH.$path)) {<br />			include PC_PATH.$path;<br />		} else {<br />			$funcs[$key] = false;<br />			return false;<br />		}<br />		$funcs[$key] = true;<br />		return true;<br />	}<br />	<br />	/**<br />	 * 加载函数库<br />	 * @param string $func 函数库名<br />	 * @param string $path 地址<br />	 */<br />	private static function _auto_load_func($path = '') {<br />		if (empty($path)) $path = 'libs'.DIRECTORY_SEPARATOR.'functions'.DIRECTORY_SEPARATOR.'autoload';<br />		$path .= DIRECTORY_SEPARATOR.'*.func.php';<br />		$auto_funcs = glob(PC_PATH.DIRECTORY_SEPARATOR.$path);<br />		if(!empty($auto_funcs) && is_array($auto_funcs)) {<br />			foreach($auto_funcs as $func_path) {<br />				include $func_path;<br />			}<br />		}<br />	}<br />	/**<br />	 * 是否有自己的扩展文件<br />	 * @param string $filepath 路径<br />	 */<br />	public static function my_path($filepath) {<br />		$path = pathinfo($filepath);<br />		if (file_exists($path['dirname'].DIRECTORY_SEPARATOR.'MY_'.$path['basename'])) {<br />			return $path['dirname'].DIRECTORY_SEPARATOR.'MY_'.$path['basename'];<br />		} else {<br />			return false;<br />		}<br />	}<br />	<br />	/**<br />	 * 加载配置文件<br />	 * @param string $file 配置文件<br />	 * @param string $key  要获取的配置荐<br />	 * @param string $default  默认配置。当获取配置项目失败时该值发生作用。<br />	 * @param boolean $reload 强制重新加载。<br />	 */<br />	public static function load_config($file, $key = '', $default = '', $reload = false) {<br />		static $configs = array();<br />		if (!$reload && isset($configs[$file])) {<br />			if (empty($key)) {<br />				return $configs[$file];<br />			} elseif (isset($configs[$file][$key])) {<br />				return $configs[$file][$key];<br />			} else {<br />				return $default;<br />			}<br />		}<br />		$path = CACHE_PATH.'configs'.DIRECTORY_SEPARATOR.$file.'.php';<br />		if (file_exists($path)) {<br />			$configs[$file] = include $path;<br />		}<br />		if (empty($key)) {<br />			return $configs[$file];<br />		} elseif (isset($configs[$file][$key])) {<br />			return $configs[$file][$key];<br />		} else {<br />			return $default;<br />		}<br />	}<br />}

------解决思路----------------------
默认路由设置：caches/configs/route.php  'default'=>array('m'=>'content', 'c'=>'index', 'a'=>'init'),
执行流程：base.php -> m=content -> c=index -> a=init
路径：phpcms/modules/content/index.php  里面的 function init()