Update show-indicators
diff --git a/docs/docs/components/slider.md b/docs/docs/components/slider.md
index 1cdcc24..6046906 100644
--- a/docs/docs/components/slider.md
+++ b/docs/docs/components/slider.md
@@ -14,7 +14,7 @@
 * **interval**, number in millisecond. This value determines time interval for each page displayed in slider.
 * **index**, number. This value determines the  index of current shown slide. The default value is 0.
 * **offset-x-accuracy**, number. Set the scroll event trigger precision, precision value represents the rolling distance of a page width ratio.
-* **show-indicators**, boolean. Set whether to display indicator.
+* **show-indicators**, boolean. Set whether to display indicator. This attribute is useless if there is no `[<indicator>](.indicator.html)` in the slider despite the default value of `show-indicators` is true.
 * **infinite**, boolean. Set whether the page in the slider can be scrolled. The default value is true.
 * **scrollable**, boolean. Set whether slider pages can be switched by sliding gestures. The default value is true.
 * **keep-index**, boolean, <Badge text="Android" type="warning"/>. Set whether to maintain the index of the page after the data changes.
diff --git a/docs/zh/docs/components/slider.md b/docs/zh/docs/components/slider.md
index 38f5de0..ebff24b 100644
--- a/docs/zh/docs/components/slider.md
+++ b/docs/zh/docs/components/slider.md
@@ -14,7 +14,7 @@
 * **interval**, number(ms). 轮播间隔,默认为 3000ms。
 * **index**, number. 设置显示slider的第几个页面。
 * **offset-x-accuracy**, number. 控制 `onscroll` 事件触发的频率,默认值为10,表示两次 `onscroll` 事件之间滚动容器至少滚动了10px。将该值设置为较小的数值会提高滚动事件采样的精度,但同时也会降低页面的性能。
-* **show-indicators**, boolean. 是否显示指示器。
+* **show-indicators**, boolean. 是否显示指示器。尽管`show-indicator`的默认值是true,本属性只有在slider下包含`[<indicator>](.indicator.html)`时才有意义。
 * **infinite**, boolean. 设置是否可以无限轮播,默认为 true。
 * **scrollable**, boolean. 设置是否可以通过滑动手势来切换页面,默认为 true。
 * **keep-index**, boolean, <Badge text="Android" type="warning"/>. 设置轮播器中的数据发生变化后是否保持变化前的页面序号。