html

<el-tree ref="treeRef" :data="data" show-checkbox :default-expand-all="false" node-key="id" highlight-current:props="defaultProps" @check="handleCheckChange" />

js

// 编辑按钮
let Jedit = (row: any) => {console.log(row);dialogFormVisible.value = trueadds.value = falseedits.value = truecharnam.value = row.nameRoleType.value = row.type == 1 ? '超管' : row.type == 2 ? "劳务公司" : row.type == 3 ? "项目部" : "审核员"Mid.value = row.menusrow.value = row.menus//数据回显，row.menus_id就是接口返回选中的树节点id集合
//菜单树数据menuVos.value = row.menus//数据回显操作nextTick(() => {const arr: any = []row.menus_id.forEach((item: any) => {if (!treeRef.value?.getNode(item).childNodes ||!treeRef.value?.getNode(item).childNodes.length) {arr.push(item)}})roleForm.menuIds = arrtreeRef.value?.setCheckedKeys(arr)})
};

const menuVos = ref([]) //菜单树列表
const roleForm: any = reactive({})
function handleCheckChange(data1: any, data2: any) {// 选中的子节点const checkedKeys = data2.checkedKeys// 选中的父节点const halfCheckedKeys = data2.halfCheckedKeyscheckMenuList.value = [...checkedKeys, ...halfCheckedKeys]
}

非常好用，拿过来修改一下check事件，ref获取就直接可以使用了