关于Thinkphp Upload类

$this->uploads($picurl);

public function uploads($picurl)
    {
        $config = array(
            'maxSize' => 3145728,
            'exts' => array('jpg','png','gif','jpeg'),
            'rootPath' => './Public/',
            'savePath' => 'Admin/img/',
            'saveName' => '',
            'autoSub' => true,
            'subName' => array('date','Ymd'),
        );
        $uploads = new \Think\Upload($config);
        $result = $uploads->uploadOne($picurl);    //$result->$uploads->upload();
        if(!$result)
        {
            $info = $uploads->getError();
        }
        else
        {
            $info = __ROOT__.'/Public/'.$result['savepath'].$result['savename'];
        }
        return $info;
    }

//调用upload上传文件有单文件上传跟多文件上传两种，但是将其封装成一个类传参数调用的时候，uploadOne($picurl)方法必须写传进来的参数，而upload()方法不能写传进来的参数，会显示非法上传文件！！！
//返回信息使用uploadOne()方法不需要遍历,使用upload()方法必须遍历