reudx middleware listens to saga, so the file to be maintained is
saga.tsx
// sagareducer.tsx
// reducerindex.tsx
// , there are router, api, and so on to maintain. 
 do you automatically scan all the pages in the pages folder and automatically introduce plug-ins such as reducer and saga plug-ins? 
 is mainly to write a page to maintain N files to introduce, too tedious. 
