react 中的this.props.children

import React, { Component } from ‘react‘;
import SYSTEM from ‘./system‘
export default class Login extends Component{
    constructor(props){
        super(props)
        this.state={
        }
    }
    render(){
        return (
            <div>
                <SYSTEM name="第一">天</SYSTEM>
                <SYSTEM name="第二">下</SYSTEM>
                <SYSTEM name="第三">第</SYSTEM>
                <SYSTEM name="第四">一</SYSTEM>
            </div>
        )
    }
}