add edgeInsets gen

example/lib/data/extension/example_num_ext.dart

@@ -82,6 +82,19 @@ class _ExampleNumExtState extends State<ExampleNumExt> {
               ),
             ),
           ),
+          ListTile(title: Text('EdgeInsets')),
+          ListTile(
+            leading: Chip(label: Text('.edge')),
+            title: Text('EdgeInsets Gen'),
+            subtitle: Text('10.edge'),
+            trailing: Container(
+              height: 30.w,
+              width: 30.w,
+              color: Colors.red,
+              padding: 10.edge,
+              child: Container(color: Colors.green),
+            ),
+          ),
         ],
       ),
     );

lib/extension/num_extension.dart

@@ -9,6 +9,9 @@ extension NumExt on num {
   ///获取高 SizedBox
   Widget get hb => SizedBox(height: this.w);
 
+  ///获取 EdgeInsets.all
+  EdgeInsets get edge => EdgeInsets.all(this.w);
+
   ///圆角
   BorderRadius get radius => BorderRadius.circular(this.w);