直接上代码
<?phpclass example{ public static $pa; public $pb; public function __construct(){ $this->pb = ++self::$pa; }}$a = new example;$b = new example;echo $a->pb;echo '<hr/>';echo $b->pb;?>本来想结果应该是
1-----------------------------------------------------1
可是我错了，正确的结果是
1----------------------------------------------------------------------------------2
基础没学好，赶快补补