text: import React from 'react';
  import ReactDom from 'react-dom';
  import { fn2 } from './util';
  
  import '../style/index.less';
  
  class Demo extends React.Component{
      render(){
          fn2();
          return (
              <div className='box'>{this.props.test}</div>
          )
      }
  }
  
  ReactDom.render(
      <Demo test="This is a text" />,
      document.querySelector('.container')
  )