[JavaScript知识库]react中的withRouter

//withRouter可以加工一般组件，让一般组件具备路由组件所特有的API

//withRouter的返回值是一个新组件

import?{withRouter}?from?'react-router-dom'

export?default?withRouter(Header)

import React, { Component } from 'react'
import {withRouter} from 'react-router-dom'

class Header extends Component {

	back = ()=>{
		this.props.history.goBack()
	}

	forward = ()=>{
		this.props.history.goForward()
	}

	go = ()=>{
		this.props.history.go(-2)
	}

	render() {
		console.log('Header组件收到的props是',this.props);
		return (
			<div className="page-header">
				<h2>React Router Demo</h2>
				<button onClick={this.back}>回退</button>&nbsp;
				<button onClick={this.forward}>前进</button>&nbsp;
				<button onClick={this.go}>go</button>
			</div>
		)
	}
}

export default withRouter(Header)

?