前言：我想实现表格中点击详情弹窗出一个表格展示该行详细信息。想着这个弹窗里用子组件展示。分担父组件下，怕代码过多。（使用NModal组件弹窗展示）

等我一波百度，嗯，实现方法挺多嘛，什么refs什么的，看似条条大路通罗马，我一试，一试一条死路/(ㄒoㄒ)/~~，最后也没用到refs（我还是更倾向于用这个，毕竟vue2都是这样），一直说找不到$refs，我还去了解了底层**getCurrentInstance()**逻辑，有些又说不提倡这种方式，这个方法能看到我定义的的ref方法名，但是里面是null，又或者我当时子组件不是用的<script setup lang="ts">而是用的export default defineComponent下的setup(){}，所以我不信邪，我子组件又改成了export default 还是不行。最后使用的defineProps

父组件：重点在 <child-detail :id="childRef"/> ，import childDetail from './childDetail.vue'，以及需要改变childRef值的方法detailsEvent()。

<template><div class="content-box"><n-form label-placement="left"inlinelabel-width="120px"><n-form-item label="UserName/Email"><n-input v-model:value="usersListRef.name_email" type="text" @input="queryConditional":style="{ width: '420px' }" placeholder="Please enter username or email (At least three letters)" /></n-form-item><!-- <n-form-item label="Email"><n-input v-model:value="usersListRef.email" type="text" :style="{ width: '280px' }" placeholder="Please enter email" /></n-form-item> --></n-form><n-space vertical :size="12" ><n-data-table style="min-height:calc(100vh - 223px);":bordered="false":single-line="false":columns="columns":data="data":loading="loading":pagination="pagination"striped /></n-space></div><n-modalv-model:show="showModal"class="custom-card"preset="card":style="bodyStyle"title="Details"size="huge":bordered="false":segmented="segmented"><!-- <template #header-extra>噢!</template> --><child-detail :id="childRef"/><!-- <n-data-table:bordered="false":single-line="false":columns="columns":data="data":loading="loading":max-height="300":pagination="pagination"striped /> --><!-- <template #footer>尾部</template> --></n-modal>
</template><script lang="ts">
import {NInput, NSpace,NButton, NForm, NFormItem, NDataTable, NModal} from 'naive-ui'
import {ref, defineComponent, Ref, getCurrentInstance, onMounted } from 'vue'
import { apiTokenRequest } from "@/stores/modules/apiEncapsulation"
import type { PaidlicenseResult } from "../../api/classes";
import type { DataTableColumns } from 'naive-ui'
import type { DataResult } from "../../api/classes";
import { h } from 'vue'
import { NTag, NAvatar } from 'naive-ui'
import { createDiscreteApi} from "naive-ui"
import childDetail from './childDetail.vue'interface UsersListType {username : string | nullemail: string | nullname_email: string | nullpageSize: number
}interface UsersListAll {id: string
}export default defineComponent({components: {NInput,NSpace,NButton,NForm,NFormItem,NDataTable,NModal,PaidLicenseDetail// NSwitch
},setup(){const childRef = ref("")const proxy = getCurrentInstance()!.proxyconst {message} = createDiscreteApi(["message"])const { dialog } = createDiscreteApi(["dialog"])let showModal = ref(false)const loadingRef = ref(true)const imgUrl = new URL('../../assets/AccountCircleOutlined.svg', import.meta.url).hrefconst usersListRef = ref<UsersListType>({username: null,email: null,name_email: null, pageSize: 12})const usersListAllResult : Ref<UsersListAll[]> = ref([])const getPaidResultMethod =  async ()=>{await apiTokenRequest<UsersListAll[]>("url","get").then(function(res){if(res){console.log('list===', res);usersListAllResult.value = resloadingRef.value = falseconsole.log('usersListAllResult===>',  usersListAllResult.value);}})}getPaidResultMethod()const queryConditional =async () => {console.log('条件查询===>', res);}const createColumns = ({detailsLicenses,deleteItem,handleChange,statusRes}: {detailsLicenses: (rowData: UsersListAll) => void,deleteItem: (rowData: UsersListAll) => void,handleChange: (rowData: UsersListAll) => void,statusRes: (status: number) => boolean,}): DataTableColumns<UsersListAll> => {return [{title: 'Name',key: 'name'},{title: 'Avatar',key: 'headerUrl',width:"120px",render (row) {return h(NAvatar,{style: {height:'50px',width:'50px',},color: '#fff',round:true,bordered: true,src:row.headerUrl ? row.headerUrl:imgUrl},)}},{title: 'Action',key: 'actions',width:"260px",render (row) {return [h(NButton,{size: 'small',type: "info",// quaternary: true,onClick: () => detailsLicenses(row)},{ default: () => 'Licenses' }),h( // 启、禁用NButton,{size: 'small',style: {marginLeft: "10px",width: "70px"},type: 'primary',// quaternary: true,onClick: () => handleChange(row)},{ default: () =>  row.status>0 ? 'Enable':'Disable' }),h( // 删除NButton,{size: 'small',style: {marginLeft: "10px",},type:"error",// quaternary: true,onClick: () => deleteItem(row)},{ default: () => 'Delete' }),]}}]}const detailsEvent = async (rowData:UsersListAll)=>{showModal.value = truechildRef.value= rowData.id}const deleteEvent = async (rowData:UsersListAll)=>{}const handleChangeEvent = async (rowData:UsersListAll)=>{}return{childRef,usersListRef,usersListAllResult,showModal,loading: loadingRef,queryConditional,data: usersListAllResult,columns: createColumns({detailsLicenses (rowData) {message.info('send mail to ' + rowData.name)detailsEvent(rowData)},deleteItem(rowData){deleteEvent(rowData)},handleChange(rowData){handleChangeEvent(rowData)}}),pagination: {pageSize: usersListRef.value.pageSize// pageSize: 2},bodyStyle: {width: '60vw',// height: '60vh'},segmented: {content: 'soft',// footer: 'soft'} as const,}}
})
</script><style scoped>
</style>

子组件：都是重点。

<template><n-data-table:bordered="false":single-line="false":data="detailsData":loading="loading":columns="childColumns":max-height="300":pagination="pagination"striped /> 1111111{{ props?.id }}
</template><script lang="ts">
import {NInput, NSpace,NButton, NForm, NFormItem, NDataTable, NModal} from 'naive-ui'
import { defineComponent, ref, Ref, defineProps, onMounted } from 'vue'
import { apiTokenRequest } from "@/stores/modules/apiEncapsulation"
import type { Result } from "../../api/classes";
import type { DataTableColumns } from 'naive-ui'export default defineComponent({components:{NDataTable},
})
</script><script setup lang="ts">const props = defineProps({id:{type: String,}})const pagination = ref( {pageSize: 10})const loading = ref(true)let childColumns :anyconst detailsData : Ref<PaidlicenseResult[]> = ref([])const getDetail= async (id:string|undefined)=>{await apiTokenRequest<Result[]>("url","get").then(function(res){if(res){console.log('details===', res);loading.value = falsedetailsData.value = reschildColumns  = columns()console.log('=====detailsData===', detailsData.value);}})}getDetail(props.id)const columns = () => {return [{title:'id',key: 'id'}]}
</script>

我原本想await 调用getDetail() 会报错。setup function returned a promise, but no <Suspense> boundary was found in the parent component tree. A component with async setup() must be nested in a <Suspense> in order to be rendered. ,想用await是数据还没请求完，表格列名又加载了（当时还没有使用childColumns = columns()），就会同时出现这些报错type check failed for prop "columns". Expected Array, got Function 和Unhandled error during execution of setup function还有Unhandled error during execution of scheduler flush. This is likely a Vue internals bug. Please open an issue at。后面我想着，那就等数据请求成功后再调用columns()，用childColumns 字段赋值给组件。