当做固定写法吧
截图里少一个括号,已代码为主
import {createStore,applyMiddleware,compose} from 'redux' import thunk from 'redux-thunk' import reducer from './reducer' const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__? window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__({}):compose const enhancer = composeEnhancers(applyMiddleware(thunk)) // const store = createStore(reducer, window.__REDUX_DEVTOOLS_EXTENSION__ && window.__REDUX_DEVTOOLS_EXTENSION__()) const store = createStore(reducer, enhancer) export default store