add an attribute highlight-current does not need to give any value
there is a setCurrentKey () method in the tree, you can display the highlight effect according to the node id, here is the tree, some of the attributes you set (attributes can be added or subtracted according to the document, here is just a reference for you)
<el-tree
ref="tree"
:data="data"
node-key="id"
show-checkbox
check-strictly
highlight-current
:expand-on-click-node="false"
/> call this method directly
this.$refs.tree.setCurrentKey (node id)
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