<?php class Hello { private $content = "HelloMyPHP"; public $name; public function getContent() { return $this->content; } function __construct($name) { $this->name = $name; echo "__construct<br/>" . $this->name; } function __destruct() { echo "<br/>__destruct<br/>byebye"; } public function setContent($content) { echo "<br/>setContent<br/>" . $content; $this->content = $content; } function dangerous() { try { throw new Exception ( "<br/>就是想跑出异常罢了<br/>" ); } catch ( Exception $e ) { echo $e->getMessage (); } } } $myHello = new Hello ( "myname" ); $myHello->setContent ( "我的内容" ); echo $myHello->getContent (); echo $myHello->name; $myHello->dangerous (); ?>