modify some description

lib/widgets/elements/Frame/Align/Align/index.dart

@@ -1,8 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_markdown/flutter_markdown.dart';
 import '../../../../../common/widget_demo.dart';
-import './demo.dart' ;
-
+import './demo.dart';
 
 const String _flatText0 = """
 ### **简介**
@@ -10,18 +9,16 @@ const String _flatText0 = """
 - 根据自己需求，进行控件对齐
 ### **基本用法**
 > alignment → AlignmentGeometry
-- 要对齐右下方的框，您将通过此框一个比子的自然大小更大的严格约束，并且对齐Alignment.bottomRight
+- 要对齐右下方的框，那么对这个框对要求会比对子控件更加严肃的约束，使用：Alignment.bottomRight
 - 同理：Alignment.center，Alignment.bottomLeft，Alignment.topLeft等
 """;
 
 const String _flatText1 = """
 >  widthFactor / heightFactor → double
 - 如果widthFactor / heightFactor 为空，并且外部无任何约束，child控件大小默认，那么这个控件将根据自身尺寸最大化
-
 - 如果widthFactor / heightFactor 不为空，并且外部无约束，align将匹配对应的child尺寸
 - ex：widthFactor/ heightFactor 为2.0；那么widget的宽高为child宽高的两倍
-- 如果widthFactor / heightFactor 为空，并且外部无约束，child控件设置自身大小
-- Alignment部分标签失效
+- 如果widthFactor / heightFactor 为空，并且外部无约束，child控件将会设置自身大小
 """;
 
 class Demo extends StatefulWidget {
@@ -36,13 +33,9 @@ class _DemoState extends State<Demo> {
   Widget build(BuildContext context) {
     return WidgetDemo(
       title: 'Align',
-      codeUrl:"elements/Frame/Align/Align/demo.dart",
+      codeUrl: "elements/Frame/Align/Align/demo.dart",
       docUrl: 'https://docs.flutter.io/flutter/widgets/Align-class.html',
-      contentList: [
-        _flatText0,
-        _flatText1,
-        _alignCreate()
-      ],
+      contentList: [_flatText0, _alignCreate()],
     );
   }
 
@@ -55,7 +48,6 @@ class _DemoState extends State<Demo> {
           children: <Widget>[
             AlignAlignment(Alignment.center, 'center'),
             AlignAlignment(Alignment.centerLeft, 'centerLeft'),
-
           ],
         ),
         SizedBox(height: 10.0),
@@ -65,7 +57,6 @@ class _DemoState extends State<Demo> {
             AlignAlignment(Alignment.centerRight, 'centerRight'),
             AlignAlignment(Alignment.bottomCenter, 'btCenter'),
             AlignAlignment(Alignment.topCenter, 'topCenter'),
-
           ],
         ),
         SizedBox(height: 10.0),
@@ -84,13 +75,13 @@ class _DemoState extends State<Demo> {
           color: Color(0xffe91e63),
           child: new Align(
             alignment: Alignment.topLeft,
-            child: new Text("Align",style: 
-            TextStyle(color: Color(0xffffffff)),),
+            child: new Text(
+              "Align",
+              style: TextStyle(color: Color(0xffffffff)),
+            ),
           ),
         ),
-       
         AlignFactor(Alignment.topLeft, 2.0, 2.0, 'topleft'),
-        
         AlignFactor(Alignment.topRight, null, null, 'topleft'),
         AlignFactor(Alignment.center, null, null, 'center'),
         AlignFactor(Alignment.bottomLeft, null, null, 'bottomLeft'),