redux进行研究4

    react-redux

      

     react-redux为提供了两个api

      全局提供store，index.js

      import React from 'react'

      import ReactDom from 'react-dom'

      import App from './App'

      import store from './store/ReactReduxStore'

      import { Provider } from 'react-redux'

      ReactDom.render(

      <Provider store={store}>

     <App/>

      </Provider>,

      document.querySelector('#root')

      )

      获取状态数据，ReduxTest.js

异步

Redux只是个纯粹的状态管理器，默认只⽀持同步，实现异步任务 ⽐如延

迟，⽹络请求，需要中间件的⽀持，⽐如我们试⽤最简单的redux-thunk和

redux-logger

应⽤中间件，store.js

import { createStore, applyMiddleware } from "redux";

import logger from "redux-logger";

import thunk from "redux-thunk";

const store = createStore(fruitReducer,

applyMiddleware(logger, thunk));