React 中的 this.props.children 用法

class RootContent extends React.Component{
    constructor(props){
        super(props);
    }
    render(){
        return (
            <div className='divider'>
                {this.props.children}
            </div>
        );
    }
}
class RootChild extends React.Component{
    constructor(props){
        super(props);
    }
    render(){
        return (
         <RootContent>
             <p>Hello, React</p>
             <p>Hello, Redux</p>
             <p>Hello, Facebook</p>
             <p>Hello, Google</p>
             </RootContent>
         );
     }
 }
 ReactDOM.render(
     <RootChild />,
     document.querySelector('#root')
 );