vite打包兼容低版本

yarn add @vitejs/plugin-legacy -D
// 或
yarn add terser --dev

import legacy from '@vitejs/plugin-legacy'

export default defineConfig({
  //...
  plugins: [
    // ...
    legacy({
      targets: ['defaults', "> 1%", "last 2 versions", "not ie <= 8"],
      cssTarget: ['defaults', "> 1%", "last 2 versions", "not ie <= 8"],
      additionalLegacyPolyfills:['regenerator-runtime/runtime'] // 面向IE11时需要此插件

    })
  ]
})