diff --git a/extend/catcher/library/table/ComponentsTrait.php b/extend/catcher/library/table/ComponentsTrait.php
index 4a0bc1c..afb5ee4 100644
--- a/extend/catcher/library/table/ComponentsTrait.php
+++ b/extend/catcher/library/table/ComponentsTrait.php
@@ -60,8 +60,28 @@ trait ComponentsTrait
     }
 
 
+    /**
+     * 多选组件
+     *
+     * @time 2021年05月03日
+     * @param array $options
+     * @param null $updateFields
+     * @return HeaderItem
+     */
     public function withSelectComponent(array $options, $updateFields = null): HeaderItem
     {
         return $this->component('select_', $updateFields ? : $this->attributes['prop'], $options);
     }
-}
\ No newline at end of file
+
+    /**
+     * 预览组件
+     *
+     * @time 2021年05月03日
+     * @param null $field
+     * @return ComponentsTrait|HeaderItem
+     */
+    public function withPreviewComponent($field = null)
+    {
+        return $this->component('preview', $field ? : $this->attributes['prop']);
+    }
+}
diff --git a/extend/catcher/library/table/Table.php b/extend/catcher/library/table/Table.php
index e5d4c80..0cbc733 100644
--- a/extend/catcher/library/table/Table.php
+++ b/extend/catcher/library/table/Table.php
@@ -211,7 +211,7 @@ class Table
      * @param string $usedModel
      * @return $this
      */
-    public function withUsedModelAndExcel(string $usedModel, array $excel): Table
+    public function withUsedModelAndExcel(string $usedModel, array $excel = []): Table
     {
         foreach ($excel as $e) {
             $this->excel[] = $e->render();