话不多说 直接上代码 

主要是给h函数设置自定义指令控制

import '@/styles/reset.css'
import '@/styles/global.scss'
import 'uno.css'import { createApp } from 'vue'
import App from './App.vue'
import { setupRouter } from './router'
import { setupStore } from './store'
import { setupNaiveDiscreteApi } from './utils'
import { setupDirectives } from './directives'
import { permissions } from './globalVariables'async function bootstrap() {const app = createApp(App)// 注册全局变量  添加permissions权限app.config.globalProperties.$permissions = permissionssetupStore(app)setupDirectives(app)await setupRouter(app)app.mount('#app')setupNaiveDiscreteApi()
}bootstrap()

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import { router } from '@/router'const permission = {mounted(el, binding) {//拿到当前的route信息const currentRoute = unref(router.currentRoute)去取按钮权限集合const btns = currentRoute.meta?.btns?.map(item => item.code) || []//判断当前是否存在if (!btns.includes(binding.value)) {el.remove()}},
}export function setupDirectives(app) {//注册自定义指令app.directive('permission', permission)
}

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//resolveDirective 获取当前已经注册过的自定义指令
//withDirectives vue3提供给虚拟dom添加自定义指令的函数
//getCurrentInstance 获取上下文
import { resolveDirective, withDirectives } from 'vue'// 获取 按钮权限 
const permissions = getCurrentInstance()?.appContext.config.globalProperties.$permissions
//获取resolveDirective当前已经注册的指令名 也就是v-xxxx
const permissionDirective = resolveDirective('permission'){title: '操作',key: 'actions',align: 'center',width: 100,fixed: 'right',render: (row) => {return [withDirectives(h(NButton,{size: 'small',type: 'primary',secondary: true,onClick: () => handleAddOrEdit('edit', row),},{ default: () => '修改' },),// 添加权限控制[[permissionDirective, permissions.editNotification]],),//交集设置h是否展示row.xxx === 2 && withDirectives(h(NButton,{size: 'small',type: 'error',style: 'margin-left: 12px;',secondary: true,onClick: () => handleDeleteRow(row),},{ default: () => '删除' },),[[permissionDirective, permissions.delNotification]],),]},},

针对需要判断状态的时候

把他们放在同一级

row.state !== 2 && withDirectives(h(NButton,{size: 'small',type: row.state === 0 ? 'error' : 'warning',style: 'margin-left: 12px;',secondary: true,onClick: () => handlemore('6', row),},{ default: () => row.state === 0 ? '冻结' : '解冻' },),[[permissionDirective, permissions.frozenUser]],),

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