案例图:
redux方法
代码:
index.js
import React from "react";
import ReactDOM from "react-dom"
import App from "./App";
ReactDOM.render(<App/>,document.getElementById("root"))
App.js
import React, { Component } from 'react'
import Count from './components/Count'
export default class App extends Component {
render() {
return (
<div>
<Count />
</div>
)
}
}
Count/index.js
import React, { Component } from 'react'
export default class Count extends Component {
state = { count: 0 }
// 加+
increase = () => {
c