diff --git a/lib/buttons/as_back_button.dart b/lib/buttons/as_back_button.dart
index 0746457..91208c7 100644
--- a/lib/buttons/as_back_button.dart
+++ b/lib/buttons/as_back_button.dart
@@ -2,6 +2,11 @@ import 'package:ansu_ui/ansu_ui.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
+///安速返回按钮
+///
+///ASBackButton 黑色返回按钮
+///
+///ASBackButton.white 白色返回按钮
 class ASBackButton extends StatelessWidget {
   final Color color;
   const ASBackButton({Key key, this.color = kDarkColor}) : super(key: key);
diff --git a/lib/tabbar/as_tabbar.dart b/lib/tabbar/as_tabbar.dart
index da8e891..f34f0b2 100644
--- a/lib/tabbar/as_tabbar.dart
+++ b/lib/tabbar/as_tabbar.dart
@@ -2,6 +2,11 @@ import 'package:ansu_ui/styles/as_colors.dart';
 import 'package:ansu_ui/tabbar/as_tab_indicator.dart';
 import 'package:flutter/material.dart';
 
+/// ## 安速Tabbar
+///
+/// [items]
+///
+/// [controller] see more TabController
 class ASTabBar extends StatefulWidget implements PreferredSizeWidget {
   final List<String> items;
   final TabController controller;