react跳转url，跳转外链，新页面打开页面

import PropTypes from 'prop-types';
export default class Header extends Component {
    static contextTypes = {
        router: PropTypes.object.isRequired,
    }
    constructor(props) {
        super(props);
        this.state = {
            keyword:"",
            channelList:[]
        };
        this.handleToSearch=this.handleToSearch.bind(this);
    }
    handleToSearch() {
        if(this.state.keyword){
            this.context.router.history.push(`/news_list/search/${this.props.channelId}/${this.state.keyword}`)
        }
    }
    render() {
        return (
               <div className="wrapper">
                  小星星小星星
               </div>
        );
    }
}

this.props.history.push('/download')

window.location.href = 'https://你的url'

 target="_blank"

 target="_blank"

<span><a href="https://internal.zhongwentoutiao.com/admin/news_list" target="_blank" rel="noopener noreferrer">管理员入口</a></span>