# Basic
```html
```
```js
export default {
data () {
return {
selected: 'sub1',
initOpenKeys: ['subMenu', "subMenu2","subMenu22"],
opens: ['subMenu']
}
},
methods: {
changeOpen (names) {
console.log('names', names)
},
changeSelect (val) {
console.log('changeSelect', val)
}
}
};
```
```css
```