1. 安装 view-ui-plus

npm install view-ui-plus --save

2. 安装 babel-plugin-import

npm install babel-plugin-import --save-dev

3. 配置 babel.config.js

module.exports = {
  presets: [
    '@vue/cli-plugin-babel/preset',
  ],
  // ——————————这里
  plugins: [
    [
      'import',
      {
        'libraryName': 'view-ui-plus',
        'libraryDirectory': 'src/components',
      },
      'view-ui-plus',
    ]
  ],
};

4. 按需引入 view-ui-plus

import { Split } from 'view-ui-plus';
export default {
  components: { Split },
  data() {
  	return {}
  }
}