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ant-design-vue/components/tree/demo/switcher-icon.vue

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<docs>
---
order: 8
title:
zh-CN: 自定义展开/折叠图标
en-US: Customize collapse/expand icon
---
## zh-CN
自定义展开/折叠图标
## en-US
customize collapse/expand icon of tree node
</docs>
<template>
<a-tree
v-model:expandedKeys="expandedKeys"
v-model:selectedKeys="selectedKeys"
show-line
:tree-data="treeData"
>
<template #switcherIcon><down-outlined /></template>
</a-tree>
</template>
<script lang="ts">
import { DownOutlined } from '@ant-design/icons-vue';
import { defineComponent, ref } from 'vue';
import type { TreeProps } from 'ant-design-vue';
export default defineComponent({
components: {
DownOutlined,
},
setup() {
const expandedKeys = ref<string[]>(['0-0-0']);
const selectedKeys = ref<string[]>([]);
const treeData: TreeProps['treeData'] = [
{
title: 'parent 1',
key: '0-0',
children: [
{
title: 'parent 1-0',
key: '0-0-0',
children: [
{
title: 'leaf',
key: '0-0-0-0',
},
{
title: 'leaf',
key: '0-0-0-1',
},
{
title: 'leaf',
key: '0-0-0-2',
},
],
},
{
title: 'parent 1-1',
key: '0-0-1',
children: [
{
title: 'leaf',
key: '0-0-1-0',
},
],
},
{
title: 'parent 1-2',
key: '0-0-2',
children: [
{
title: 'leaf',
key: '0-0-2-0',
},
{
title: 'leaf',
key: '0-0-2-1',
},
],
},
],
},
];
return {
expandedKeys,
selectedKeys,
treeData,
};
},
});
</script>