React 创建组件

class Header extends Component {
    constructor() {
        super()
        this.state = {
            data:[]
        }
    }
    componentWillReceiveProps(nextProps) {
             this.setState({status : nextProps.status})
    }
    render() {
        return (
            <div>
            Hello React
            </div>
        )
    }
}