reduxDevTool 配置
import { createStore, compose, applyMiddleware } from 'redux'
import reducer from './reducer'
import thunk from 'redux-thunk'
const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ ?
window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__({}) : compose
const enhancer = composeEnhancers(applyMiddleware(thunk))
const store = createStore(reducer,
enhancer
)
export default store