Fatal error: Call to undefined method Imagick::getImageMimeType() in D:\xampp\htdocs\app\Lib\ORG\ThinkImage\Driver\ImageImagick.class.php on line 54
另外；添加水印方法public function water($source, $locate = THINKIMAGE_WATER_SOUTHEAST)，只有两个参数，那那个$alpha水印透明度这个参数怎么加进去？