xxx

project/p4/src/App.js

@@ -1,6 +1,4 @@
 import React from 'react';
-// import ReactDom from 'react-dom';
-// import HeaderComponent from './components/header/index'
 import './assets/css/public.css'
 import './assets/css/app.css'
 class App extends React.Component{

project/p4/src/components/header/index.js

@@ -1,19 +0,0 @@
-import React,{Component} from 'react';
-import prop from 'prop-types';
-class HeaderComponent extends Component{
-    render(){
-        return(
-            <div id="header" style={this.props.isShow ? {display:'block'}:{display:'none'}}>{this.props.title}</div>
-        );
-    }
-}
-//prop设置属性
-HeaderComponent.propTypes={
-    title:prop.string.isRequired,
-    isShow:prop.bool.isRequired
-}
-//prop设置默认值
-HeaderComponent.defaultProps={
-    title:'默认值'
-}
-export default HeaderComponent;