default-expand-all :expand-on-click-node="false" :render-content="renderContent"> </el-tree> </template> export default { name: 'tree', data:function(){ return { treeData: [{ id: 1, label: '一級(jí)', code:'1', children: [{ id: 4, label: '二級(jí)', code:'1-1', children: ...
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