React实现Route

一、首先引入Route

/* enter.js 页面里的代码* HashRouter:有#号* BrowserRouter:没有#号* Switch:只要匹配到一个地址不往下匹配，相当于for循环里面的break* Link:跳转页面，相当于vue里面的router-link

• exact :完全匹配路由* */

•   import  {HashRouter as Router,Route,Switch,Link}  from  						'react-router-dom';
    Import  IndexComponent  from  './index/index';
    import NewsComponent from './news/index';
    render(){
    	return(
    
    	
    		
  
    			
    				 
    			
    		
    	
    
    	)
    }
  

!!因为不能URL后边直接/配子路由,所以需要在加一行