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import React from 'react'; import ReactDOM from 'react-dom'; // 1.先安装react-router-dom // 2.导入BrowserRouter as Router,Route,Link import {BrowserRouter as Router,Route,Link} from 'react-router-dom' // 路由的基本使用 const First=()=><div>1233</div> const App=()=>{ return ( // 3.使用Router包裹组件元素 <Router> <div> <h1>路由基础</h1> {/* 4.使用Link设置路径入口 会被编译为a标签 */} <Link to="/first">页面7</Link> {/* 5.使用Route中path表示路径跳转,component 表示要展示的组件 Route写在哪,展示的内容就渲染在哪 */} <Route path="/first" component={First}></Route> </div> </Router> ) } ReactDOM.render(<App />, document.getElementById('root'));
1.点击link组件(a标签),修改了浏览器地址栏中的url 2.React路由监听到地址栏中url的变化 3.React 路由内部遍历所有Router组件,使用路由规则(path)与pathname进行匹配 4.当路由规则(path)能够匹配地址栏中的pathname时,就展示该Route组件的内容
通过JS代码来实现页面跳转 history是React路由提供的,用于获取浏览器历史记录的相关信息 push(path):跳转到某个页面,参数path表示要跳转的地址 go(n):前进或后退到某个页面,参数n表示前进或后退页面数量
class Login extends Component { handleLogin = () => { // 使用编程式导航实现页面之间的跳转 this.props.history.push('/home') } render() {...省略其他代码} } 在函数组件中使用 props.history.push("/home") ---"/home" 表示将要跳转的页面路径
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