1、創(chuàng)建PropsRender組件，代碼如下：

import React from 'react'

export default class PropsRender extends React.Component {
????state = {
????????x: 0,
????????y: 0
????}

????moveMouse = ?e => {
????????this.setState({
? ? ? ? ????x: e.clientX,
????????????y: e.clientY
????????})
????}

????componentDidMount() {
????????window.addEventListener('mousemove', this.moveMouse)
????}

????componentWillUnmount() {
????????window.removeEventListener('mousemove', this.moveMouse)
????}

????render() {
????????return this.props.render(this.state)?
? ? }
}

2、組件運用

import React from 'react'
import PropsRender from './components/move-mouse/PropsRender'

function App() {
????return (
????????<div className="App">
? ? ? ? ????<PropsRender render={
????????????????move => {
????????????????????return (<p>鼠標當前坐標：{move.x}，{move.y}</p>)
????????????????}
????????????}></PropsRender>
? ? )
}

export default App