微调

app/Admin/Controllers/Article/IndexController.php

@@ -58,7 +58,7 @@ class IndexController extends AdminController
 //        $form->list('subjoin', '附加')
 //            ->help('只有领导班子需要添加');
 
-        $form->image('cover', '封面')
+        $form->cropper('cover', '封面')
             ->move('images/'.date('Y/m/d'))
             ->removable()
             ->uniqueName();