1.安装依赖

npm i unplugin-auto-import -D
2.vite.config.ts添加配置
import { defineConfig } from "vite";
import vue from "@vitejs/plugin-vue";
import AutoImport from "unplugin-auto-import/vite";
export default defineConfig({
  plugins: [
    vue(),
    AutoImport({
      imports: ["vue"],
      dts: "src/auto-import.d.ts",
3.上面配置完毕dts后可能并不会自动生成auto-import.d.ts文件，可以重新运行一下项目，或者关闭编辑器重新打开运行即可。src中会生成auto-import.d.ts
/* eslint-disable */
/* prettier-ignore */
// @ts-nocheck
// Generated by unplugin-auto-import
export {}
declare global {
  const EffectScope: typeof import('vue')['EffectScope']
  const computed: typeof import('vue')['computed']
  const createApp: typeof import('vue')['createApp']
  const customRef: typeof import('vue')['customRef']
  const defineAsyncComponent: typeof import('vue')['defineAsyncComponent']
  const defineComponent: typeof import('vue')['defineComponent']
  const effectScope: typeof import('vue')['effectScope']
  const getCurrentInstance: typeof import('vue')['getCurrentInstance']
  const getCurrentScope: typeof import('vue')['getCurrentScope']
  const h: typeof import('vue')['h']
  const inject: typeof import('vue')['inject']
  const isProxy: typeof import('vue')['isProxy']
  const isReactive: typeof import('vue')['isReactive']
  const isReadonly: typeof import('vue')['isReadonly']
  const isRef: typeof import('vue')['isRef']
  const markRaw: typeof import('vue')['markRaw']
  const nextTick: typeof import('vue')['nextTick']
  const onActivated: typeof import('vue')['onActivated']
  const onBeforeMount: typeof import('vue')['onBeforeMount']
  const onBeforeUnmount: typeof import('vue')['onBeforeUnmount']
  const onBeforeUpdate: typeof import('vue')['onBeforeUpdate']
  const onDeactivated: typeof import('vue')['onDeactivated']
  const onErrorCaptured: typeof import('vue')['onErrorCaptured']
  const onMounted: typeof import('vue')['onMounted']
  const onRenderTracked: typeof import('vue')['onRenderTracked']
  const onRenderTriggered: typeof import('vue')['onRenderTriggered']
  const onScopeDispose: typeof import('vue')['onScopeDispose']
  const onServerPrefetch: typeof import('vue')['onServerPrefetch']
  const onUnmounted: typeof import('vue')['onUnmounted']
  const onUpdated: typeof import('vue')['onUpdated']
  const provide: typeof import('vue')['provide']
  const reactive: typeof import('vue')['reactive']
  const readonly: typeof import('vue')['readonly']
  const ref: typeof import('vue')['ref']
  const resolveComponent: typeof import('vue')['resolveComponent']
  const shallowReactive: typeof import('vue')['shallowReactive']
  const shallowReadonly: typeof import('vue')['shallowReadonly']
  const shallowRef: typeof import('vue')['shallowRef']
  const toRaw: typeof import('vue')['toRaw']
  const toRef: typeof import('vue')['toRef']
  const toRefs: typeof import('vue')['toRefs']
  const triggerRef: typeof import('vue')['triggerRef']
  const unref: typeof import('vue')['unref']
  const useAttrs: typeof import('vue')['useAttrs']
  const useCssModule: typeof import('vue')['useCssModule']
  const useCssVars: typeof import('vue')['useCssVars']
  const useSlots: typeof import('vue')['useSlots']
  const watch: typeof import('vue')['watch']
  const watchEffect: typeof import('vue')['watchEffect']
  const watchPostEffect: typeof import('vue')['watchPostEffect']
  const watchSyncEffect: typeof import('vue')['watchSyncEffect']
// for type re-export
declare global {