es6在react中的应用

import React,{Component} from 'react';
class RepeatArray extends Component{
  constructor() {
    super();
  }
  render(){
    const names = ['Alice', 'Emily', 'Kate'];
    return (
      <div>
      {
        names.map((name) =>{return <div>Hello, {name}!</div>;} )
      }
      </div>
    );
  }
}
export default RepeatArray;

import React,{Component} from 'react';
class RepeatLi extends Component{
  render(){
    return (
      <ol>
      {
        this.props.children.map((child)=>{return <li>{child}</li>})
      }
      </ol>
    );
  }
}
class RepeatArray extends Component{
  constructor() {
    super();
  }
  render(){
    return (
      <div>

      <RepeatLi>
        <span>hello</span>
        <span>world</span>
      </RepeatLi>

      </div>
    );
  }
}
export default RepeatArray;