applyMiddleware 与 Enhancer

import { createStore, applyMiddleware, compose } from 'redux'

const store = createStore(
  reducer,
  preloadedState, // <----- 可选，前后端同构的数据同步
  compose( // <------------ 还记得吗？compose 是从右到左的哦！
    applyMiddleware( // <-- 这货也是 Store Enhancer 哦！但这是关乎中间件的增强器，必须置于 compose 执行链的最后
      middleware1,
      middleware2,
      middleware3
    ),
    enhancer3,
    enhancer2,
    enhancer1
  )
)