案例优化

2022-03-26 18:10:17 +08:00
parent aa2f392419
commit 36b5adbd7b
257 changed files with 1491 additions and 1400 deletions
--- a/lib/widget_system/widgets/SingleChildRenderObjectWidget/Center/node1_base.dart
+++ b/lib/widget_system/widgets/SingleChildRenderObjectWidget/Center/node1_base.dart
@@ -12,10 +12,12 @@ import 'package:flutter/material.dart';
 //          "【child】 : 孩子组件   【Widget】",
 //    }
 class CustomCenter extends StatelessWidget {
+  const CustomCenter({Key? key}) : super(key: key);
+
  @override
  Widget build(BuildContext context) {
    return Container(
-        margin: EdgeInsets.all(5),
+        margin: const EdgeInsets.all(5),
        width: 200,
        height: 100,
        color: Colors.grey.withAlpha(88),