diff --git a/packages/meta/src/ButtonList/ButtonList.tsx b/packages/meta/src/ButtonList/ButtonList.tsx
index 22db3dc..9597fcf 100644
--- a/packages/meta/src/ButtonList/ButtonList.tsx
+++ b/packages/meta/src/ButtonList/ButtonList.tsx
@@ -10,7 +10,7 @@ export interface IButtonItem {
   onClick: () => void;
   children?: Array<Omit<IButtonItem, 'weight'>>;
   // 用于排序
-  weight: number;
+  weight?: number;
   icon?: ReactNode
   className?: string;
   isCenter?: boolean;
@@ -30,12 +30,16 @@ const ButtonList: React.FC<ButtonListProps> = (Props) => {
   const [buttonListWrapMarginLeft, setButtonListWrapMarginLeft] = useState(0)
   const centerButtonRef = useRef<HTMLDivElement>(null);
 
-
   const sortedButtons = useMemo(() => {
-    let buttonList = [...buttons]
-
-
-    return buttonList?.sort((a, b) => a.weight - b.weight);
+    let buttonList = buttons.map((btn, index) => {
+      if (btn.weight === undefined) {
+        return { ...btn, weight: index }
+      } else {
+        return { ...btn, weight: btn.weight }
+      }
+    })
+    const newButtonList = buttonList?.sort((a, b) => a.weight - b.weight)
+    return newButtonList;
   }, [buttons]);
 
   const handleButtonClick = (key: string, item: IButtonItem) => {
@@ -64,7 +68,7 @@ const ButtonList: React.FC<ButtonListProps> = (Props) => {
      作为 buttonListWrap marginLeft 修正距离 
     */
 
-     // 这里为什么要 * 2  由于 justify-content: center;  marginLeft 需要 * 2才是 正确的值   具体原因 还在研究
+    // 这里为什么要 * 2  由于 justify-content: center;  marginLeft 需要 * 2才是 正确的值   具体原因 还在研究
     const buttonListWrapMarginLeft = (buttonListCenterOffset - centerButtonOffset) * 2
     setButtonListWrapMarginLeft(buttonListWrapMarginLeft)
 
diff --git a/packages/meta/src/ButtonList/demo/base.tsx b/packages/meta/src/ButtonList/demo/base.tsx
index fd7f191..13be8c3 100644
--- a/packages/meta/src/ButtonList/demo/base.tsx
+++ b/packages/meta/src/ButtonList/demo/base.tsx
@@ -19,34 +19,28 @@ export default () => {
                         { key: 'subButton1-1', text: '二级按钮1-1', onClick: () => console.log('二级按钮1-1被点击'), icon: <DownloadOutlined /> },
                         { key: 'subButton1-2', text: '二级按钮1-2', onClick: () => console.log('二级按钮1-2被点击') },
                     ],
-                    weight: 1,
                     // icon:<DownloadOutlined />,
                 },
                 {
                     key: 'button2',
                     text: '一级按钮2',
                     onClick: () => console.log('一级按钮2被点击'),
-                    weight: 2,
                 },
                 {
                     key: '播放',
                     text: isPlay ? '播放按钮' : '图片按钮',
                     onClick: () => { setIsPlay(!isPlay) },
-                    weight: 3,
-                    isCenter: true
+                    // isCenter: true
                 },
                 {
                     key: 'button3',
                     text: '一级按钮3',
                     onClick: () => console.log('一级按钮3被点击'),
-                    weight: 3,
                 },
                 {
                     key: 'button4',
                     text: '一级按钮4',
                     onClick: () => console.log('一级按钮4被点击'),
-                    weight: 4,
-                    // isCenter: true
 
                 },
                 {
@@ -56,7 +50,6 @@ export default () => {
                     children: [
                         { key: 'subButton5-1', text: '二级按钮5-1', onClick: () => console.log('二级按钮5-1被点击') },
                     ],
-                    weight: 5,
                 },
             ],
         }