getRefreshToken设置默认值

src/utils/auth.js

@@ -35,7 +35,7 @@ export const removeToken = () => {
   REFRESH_TOKEN_NAME.forEach(item => localStorage.removeItem(item))
 }
 // 获取refreshToken
-export const getRefreshToken = (index) => {
+export const getRefreshToken = (index = 2) => {
   return localStorage.getItem(REFRESH_TOKEN_NAME[index-1])
 }