react-redux ,redux-devtools-extension工具安装和使用

//首先安装npm i redux-devtools-extension

// 引入reducx-devtools-extension
import {composeWithDevTools} from ‘redux-devtools-extension‘
//汇总所有的reducer变为一个总的reducer
const allReducer = combineReducers({
    he:countReducer,
    rens:personReducer
})

//暴露store
export default createStore(allReducer,composeWithDevTools(applyMiddleware(thunk)))