thinkphp获得最后一条插入记录ID

class Index extends Controller
{
    public function index()
    {
    	
		
        $params = array(‘title‘=>‘这是新增记录title‘,‘content‘=>‘这是新增记录内容‘,‘addtime‘=>date(‘Y-m-d H:i:s‘));
        $result = Db::execute(‘insert into lsf_article(title,content,addtime) values(:title,:content,:addtime)‘,$params);
        sleep(20);
        $lastid=Db::getLastInsID();
        echo $lastid;

    }
    public function test(){

        $params = array(‘title‘=>‘这是新增记录title2‘,‘content‘=>‘这是新增记录内容2‘,‘addtime‘=>date(‘Y-m-d H:i:s‘));
        $result = Db::execute(‘insert into lsf_article(title,content,addtime) values(:title,:content,:addtime)‘,$params);

        $lastid=Db::getLastInsID();
        echo $lastid;

    }
}