add

application/model/GImageDepot.php

@@ -108,4 +108,19 @@ class GImageDepot extends Model
         //dump($this->getLastSql());
         return $result;
     }
+
+    /**
+     * @param string $field
+     * @param $params
+     * @return array|false|\PDOStatement|string|Model
+     * @throws \think\db\exception\DataNotFoundException
+     * @throws \think\db\exception\ModelNotFoundException
+     * @throws \think\exception\DbException
+     */
+    public function getInfo($field = 'id,img_name', $params) {
+        return Db::table($this->table)
+            ->field($field)
+            ->where($params)
+            ->find($params);
+    }
 }