fix:code

lib/widgets/elements/Frame/Layout/Row/demo.dart

@@ -10,27 +10,24 @@ import 'package:flutter/widgets.dart';
  * Describle:Row
  */
 class RowMainAxisAlignment extends StatelessWidget {
-  /*
-   * > mainAxisAlignment属性
-   * - MainAxisAlignment.spaceEvenly/spaceAround/spaceBetween,
-      - spaceEvenly：将主轴方向空白区域均分，使得children之间空间相等，包括首尾childre
-      - spaceAround：将主轴方向空白区域均分，使得children之间空间相等，但是首尾childre的空白部分为一半
-      - spaceBetween：将主轴方向空白区域均分，使得children之间空间相等，但是首尾childre靠近收尾，没有空细逢
-   * - MainAxisAlignment.start/end/center,
-      - start：将children放置在主轴起点方向
-      - end：将children放置在主轴末尾方向
-      - center：将children放置在主轴中间方向
-   */
+  ///> mainAxisAlignment属性
+  /// - MainAxisAlignment.spaceEvenly/spaceAround/spaceBetween,
+  ///  - spaceEvenly：将主轴方向空白区域均分，使得children之间空间相等，包括首尾childre
+  ///  - spaceAround：将主轴方向空白区域均分，使得children之间空间相等，但是首尾childre的空白部分为一半
+  ///  - spaceBetween：将主轴方向空白区域均分，使得children之间空间相等，但是首尾childre靠近收尾，没有空细逢
+  ///  - MainAxisAlignment.start/end/center,
+  ///  - start：将children放置在主轴起点方向
+  ///  - end：将children放置在主轴末尾方向
+  ///  - center：将children放置在主轴中间方向
+
   final MainAxisAlignment status;
 
-  /*
-   * > CrossAxisAlignment 属性
-      -  crossAxisAlignment: CrossAxisAlignment.center/end/start,
-      - 即，根据设定的位置交叉对齐
-      - center/end/start: children在交叉轴上居中/末端/起点 对齐展示
-      - stretch：让children填满交叉轴方向
-      - baseline：在交叉轴方向，使得于这个baseline对齐，如果主轴是垂直的，那么这个值是当作开始
-   */
+  /// > CrossAxisAlignment 属性
+  ///   -  crossAxisAlignment: CrossAxisAlignment.center/end/start,
+  ///   - 即，根据设定的位置交叉对齐
+  ///   - center/end/start: children在交叉轴上居中/末端/起点 对齐展示
+  ///   - stretch：让children填满交叉轴方向
+  ///   - baseline：在交叉轴方向，使得于这个baseline对齐，如果主轴是垂直的，那么这个值是当作开始
 
   final CrossAxisAlignment crossStatus;
 
@@ -38,7 +35,7 @@ class RowMainAxisAlignment extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return new Row(
+    return  Row(
       mainAxisAlignment: status,
       children: <Widget>[
         Container(
@@ -66,29 +63,29 @@ class RowLayoutCreate extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return new Row(
+    return  Row(
       mainAxisAlignment: MainAxisAlignment.center,
       children: <Widget>[
         Container(
-          margin: new EdgeInsets.only(top: 20.0, bottom: 20.0),
+          margin:  EdgeInsets.only(top: 20.0, bottom: 20.0),
           color: Color(0xfffce4ec),
           width: 60.0,
           height: 50.0,
         ),
         Container(
-          margin: new EdgeInsets.only(top: 20.0, bottom: 20.0),
+          margin:  EdgeInsets.only(top: 20.0, bottom: 20.0),
           color: Color(0xfff8bbd0),
           width: 60.0,
           height: 50.0,
         ),
         Container(
-          margin: new EdgeInsets.only(top: 20.0, bottom: 20.0),
+          margin:  EdgeInsets.only(top: 20.0, bottom: 20.0),
           color: Color(0xfff48fb1),
           width: 60.0,
           height: 50.0,
         ),
         Container(
-          margin: new EdgeInsets.only(top: 20.0, bottom: 20.0),
+          margin:  EdgeInsets.only(top: 20.0, bottom: 20.0),
           color: Color(0xfff06292),
           width: 60.0,
           height: 50.0,