vue3 使用ref函数

<el-form
        ref="dialogForm"
        :model="dialogInfo"



const dialogForm = ref<typeof ElForm | null>(null)


const dialogConfirm = () => {
  dialogForm.value?.validate(async (valid) => {
    if (valid) {

<el-tree 
              :data="rightsList"
              :props="treeProps"
              ref="treeRef"

const treeRef = ref<InstanceType<typeof ElTree>>()