reference:https://segmentfault.com/q/1010000011024043/a-1020000014176642
this.$refs.viewTree.setCurrentKey(node_id); //"viewTree"是你自己在树形控件上设置的 ref="viewTree"
<el-tree
ref="viewTree"
:default-expanded-keys="['控件', '模板']"
node-key="id"
:highlight-current="highlight_current"
:data="tree_data"
class="tree"
:props="defaultProps"
@node-click="handleNodeClick"
style='margin-bottom: 20px'
>
</el-tree>
<script >
export default{
data(){
return {
tree_data: [{
id: 'l1_1',
label: '一级节点1',
children: [{
label: '节点1-1',
id: 'l1_1_1',
}, {
label: '节点1-2',
id: 'l1_1_2',
}, {
label: '节点1-3',
id: 'l1_1_3',
}]
}, {
label: '一级节点2',
id: 'l1_2',
children: [{
label: '节点2-1',
id: 'l1_2_1',
}]
}],
}
}
}
</script>
node_id可以是tree_data中的任何一个节点的id