``` // 1.引入smarty include 'libs/Smarty.class.php'; // 2.实例化Smarty $smarty = new Smarty; $smarty->template_dir = 'view'; // 3.编译并输出模板 $smarty->display('7.html'); ``` html ``` {extends file="tpl.html"} {block name="main"} <div style="height:200px;background:pink;"> </div> {/block} {模板继承的页面：只能是extends关键字和block关键字 } <div style="height:100px;background:gray;"> 这是广告区域 </div> ```