diff --git a/example/lib/main.dart b/example/lib/main.dart
index 60c74d3..43622b5 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -45,13 +45,18 @@ class _MyHomePageState extends State<MyHomePage> {
       ),
       body: ListView(
         children: [
-          ASButton.delete('删除订单', () {}),
-          ASButton.info('删除订单', () {}),
-          ASButton.warn('删除订单', () {}),
-          ASButton.opration('删除订单', (){}),
+          ASButton.delete(title: '删除订单',onpressed: (){},),
+          ASButton.info(title: '删除订单',onpressed: (){},),
+          ASButton.warn(title: '删除订单',onpressed: (){},),
+          ASButton.opration(title: '删除订单',onpressed: (){},),
           SizedBox(height: 12.w),
-          ASLongButton.solid('确认', () {}),
-          ASLongButton.hollow('确认', () {}),
+          ASLongButton.solid(title: '确认',onpressed: (){},),
+          ASLongButton.hollow(title: '确认',onpressed: (){},),
+          Padding(
+            padding: EdgeInsets.symmetric(horizontal: 100.w),
+            child: ASLongButton.solid(title: 'null',onpressed:(){} ),
+          ),
+          
           TextButton(
               onPressed: () {
                 Get.to(ExampleScaffold());
diff --git a/lib/buttons/as_button.dart b/lib/buttons/as_button.dart
index e23df0e..7b0be49 100644
--- a/lib/buttons/as_button.dart
+++ b/lib/buttons/as_button.dart
@@ -32,6 +32,8 @@ class ASButton extends StatefulWidget {
   ///点击事件
   final VoidCallback onpressed;
 
+  ///宽度
+  final double width;
   ASButton({
     Key key,
     this.bgcolor,
@@ -42,31 +44,60 @@ class ASButton extends StatefulWidget {
     this.textStyle,
     this.padding,
     @required this.title,
-    @required this.onpressed,
+    this.onpressed,
+    this.width,
   }) : super(key: key);
 
-  ASButton.warn(this.title, this.onpressed,
-      {Key key, this.textStyle, this.padding, this.radius, this.bgcolor})
+  ASButton.warn(
+      {Key key,
+      this.textStyle,
+      this.padding,
+      this.radius,
+      this.bgcolor,
+      this.onpressed,
+      @required this.title,
+      this.width})
       : outline = true,
         outlineColor = Color(0xFFE50112),
         textColor = Color(0xFFE50112),
         super(key: key);
 
-  ASButton.info(this.title, this.onpressed,
-      {Key key, this.bgcolor, this.radius, this.textStyle, this.padding})
+  ASButton.info(
+      {Key key,
+      this.bgcolor,
+      this.radius,
+      this.textStyle,
+      this.padding,
+      @required this.title,
+      this.onpressed,
+      this.width})
       : outline = true,
         outlineColor = Color(0x73000000),
         textColor = Color(0xD9000000),
         super(key: key);
 
-  ASButton.delete(this.title, this.onpressed,
-      {Key key, this.radius, this.outlineColor, this.textStyle, this.padding})
+  ASButton.delete(
+      {Key key,
+      this.radius,
+      this.outlineColor,
+      this.textStyle,
+      this.padding,
+      @required this.title,
+      this.onpressed,
+      this.width})
       : bgcolor = Color(0xFFFFB600),
         textColor = Color(0xD9FFFFFF),
         outline = false,
         super(key: key);
-  ASButton.opration(this.title, this.onpressed,
-      {Key key, this.radius, this.outlineColor, this.textStyle, this.padding})
+  ASButton.opration(
+      {Key key,
+      this.radius,
+      this.outlineColor,
+      this.textStyle,
+      this.padding,
+      @required this.title,
+      this.onpressed,
+      this.width})
       : bgcolor = Color(0xFFF2F2F2),
         textColor = Color(0xD9000000),
         outline = false,
@@ -80,6 +111,7 @@ class _ASButtonState extends State<ASButton> {
   @override
   Widget build(BuildContext context) {
     return MaterialButton(
+      minWidth: widget.width ?? 75.w,
       materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
       onPressed: widget.onpressed,
       child: widget.title is String
@@ -89,8 +121,7 @@ class _ASButtonState extends State<ASButton> {
                       color: widget.textColor ?? Color(0xFFFFB600),
                       fontSize: 13.sp))
           : widget.title,
-      padding: widget.padding ??
-          EdgeInsets.symmetric(vertical: 6.w, horizontal: 12.w),
+      padding: widget.padding ?? EdgeInsets.symmetric(vertical: 6.w),
       shape: RoundedRectangleBorder(
           side: widget.outline
               ? BorderSide(color: widget.outlineColor, width: 0.5.w)
diff --git a/lib/buttons/as_longbutton.dart b/lib/buttons/as_longbutton.dart
index 052d580..a52b8ea 100644
--- a/lib/buttons/as_longbutton.dart
+++ b/lib/buttons/as_longbutton.dart
@@ -31,6 +31,9 @@ class ASLongButton extends StatefulWidget {
   ///点击事件
   final VoidCallback onpressed;
 
+  ///宽度
+  final double width;
+
   ASLongButton(
       {Key key,
       @required this.title,
@@ -41,23 +44,31 @@ class ASLongButton extends StatefulWidget {
       this.padding,
       this.outline = false,
       this.outlineColor,
-      @required this.onpressed})
+      this.onpressed,
+      this.width})
       : super(key: key);
 
-  ASLongButton.solid(
-    this.title,
-    this.onpressed, {
+  ASLongButton.solid({
     Key key,
     this.textStyle,
     this.padding,
     this.outlineColor,
     this.radius,
+    @required this.title,
+    this.onpressed,
+    this.width,
   })  : bgColor = Color(0xFFF6B72D),
         textColor = Color(0xFFFFFFFF),
         outline = false,
         super(key: key);
-  ASLongButton.hollow(this.title, this.onpressed,
-      {Key key, this.radius, this.textStyle, this.padding})
+  ASLongButton.hollow(
+      {Key key,
+      this.radius,
+      this.textStyle,
+      this.padding,
+      this.onpressed,
+      @required this.title,
+      this.width})
       : bgColor = Color(0xFFFFFFFF),
         textColor = Color(0xFFF6B72D),
         outline = true,
@@ -71,6 +82,8 @@ class _ASLongButtonState extends State<ASLongButton> {
   @override
   Widget build(BuildContext context) {
     return MaterialButton(
+      minWidth: widget.width ?? 280.w,
+      disabledColor: Color(0xFFC1BDB5),
       materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
       onPressed: widget.onpressed,
       child: widget.title is String
@@ -80,8 +93,7 @@ class _ASLongButtonState extends State<ASLongButton> {
                       color: widget.textColor ?? Color(0xFFFFFFFF),
                       fontSize: 20.sp))
           : widget.title,
-      padding: widget.padding ??
-          EdgeInsets.symmetric(vertical: 8.w, horizontal: 112.w),
+      padding: widget.padding ?? EdgeInsets.symmetric(vertical: 8.w),
       shape: RoundedRectangleBorder(
           side: widget.outline
               ? BorderSide(color: widget.outlineColor, width: 1.w)