The Element UI Tree component gets the selected ID

       <el-tree
         :data="treeData"// Bind array show-checkbox // whether to display checkboxes :default-checked-keys="check"// The default selected value is an array of each valueid
         node-key="id"/ / bindingidThe key... ref="tree"// Many methods need to declare red first... highlight-current :props="defaultProps"
         @check="currentChecked"// Listen for click events
       >
       </el-tree>
       
       data(){
       retuen{
        defaultProps: {
         children: "children",
         label: "label",
       }, 
       check:[],
       roleData:' '}} methods: {currentChecked (nodeObj, SelectedObj) {// console.log(SelectedObj, SelectedObj, SelectedObj)'ttt')
     // console.log(SelectedObj.checkedKeys,'pppp') // This is the key array of the selected node. Uncheck one of the check boxes under the child node does not return the parent nodeid
     // console.log(SelectedObj.checkedNodes,'oooo') // This is the selected node array letid= this. $refs. Tree. GetHalfCheckedKeys (). The concat (this. $refs. Tree. GetCheckedKeys ()) / / check and uncheck all returned to the parent nodeid
      this.check = SelectedObj.checkedKeys
      this.sysRoleUpdateCheck(id)
      console.log(id ,'this.$refs.tree.getCheckedKeys()')}},Copy the code