更新

src/util/ajax.js

 
 const token = function (headers) {
   let JWT
-  if (headers){
+  if (headers) {
     localStorage.setItem('JWT', headers.authorization)
     JWT = headers.authorization
   }
   console.log(JWT)
-  return JWT ? JWT : localStorage.getItem('JWT')
+  return JWT ? JWT : localStorage.getItem('JWT') // eslint-disable-line
 }
 
 const Axios = axios.create({