thinkphp フレームワークをゼロから理解する方法を教えてください。

<?php
 include &#39;../ThinkPHP/ThinkPHP.php&#39;;
?>

<?php
return array(
	//&#39;配置项&#39;=>&#39;配置值&#39;
	&#39;URL_MODEL&#39;        => 1,
	&#39;SHOW_PAGE_TRACE&#39;  =>false,
	&#39;TMPL_ENGINE_TYPE&#39;		=>  &#39;Smarty&#39;,
	&#39;SESSION_AUTO_START&#39; =>true,
	&#39;URL_CASE_INSENSITIVE&#39;   => false,
	&#39;DB_TYPE&#39;               =>  &#39;mysql&#39;,     // 数据库类型
    &#39;DB_HOST&#39;               =>  &#39;localhost&#39;, // 服务器地址
    &#39;DB_NAME&#39;               =>  &#39;km&#39;,       //<span style="font-family: Arial, Helvetica, sans-serif;">数据库名</span>
&#39;,          // 数据库名
    &#39;DB_USER&#39;               =>  &#39;root&#39;,      // 用户名
    &#39;DB_PWD&#39;                =>  &#39;&#39;,          // 密码
    &#39;DB_PORT&#39;               =>  &#39;3306&#39;,        // 端口
    &#39;DB_PREFIX&#39;             =>  &#39;sw_&#39;,    // 数据库表前缀
    &#39;DB_FIELDTYPE_CHECK&#39;    =>  false,       // 是否进行字段类型检查
    &#39;DB_FIELDS_CACHE&#39;       =>  true,        // 启用字段缓存
    &#39;DB_CHARSET&#39;            =>  &#39;utf8&#39;,      // 数据库编码默认采用utf8
);
?>

'TMPL_ENGINE_TYPE'		=>  'Smarty',//这是打开smarty模式

namespace Home\Controller;
use Think\Controller;
class IndexController extends Controller {
 public function index(){
    	$Index = D('Index');
		$info=$Index->select();
		$this->assign('info', $info);
		$this->display();
    }
}

 {foreach $info as $k => $v}
{$v.xxxx}
{/foreach}