diff --git a/lib/cache/cache_manager.js b/lib/cache/cache_manager.js
index 9430d684..5317d798 100644
--- a/lib/cache/cache_manager.js
+++ b/lib/cache/cache_manager.js
@@ -15,7 +15,7 @@ const enableCacheInVercel =
  */
 export async function getDataFromCache(key, force) {
   if (enableCacheInVercel || BLOG.ENABLE_CACHE || force) {
-    const dataFromCache = await getApi().getCache(key)
+    const dataFromCache = await cacheApi.getCache(key)
     if (!dataFromCache || JSON.stringify(dataFromCache) === '[]') {
       return null
     }
@@ -31,24 +31,15 @@ export async function setDataToCache(key, data, customCacheTime) {
     return
   }
   //   console.trace('[API-->>缓存写入]:', key)
-  await getApi().setCache(key, data, customCacheTime)
+  await cacheApi.setCache(key, data, customCacheTime)
 }
 
 export async function delCacheData(key) {
   if (!JSON.parse(BLOG.ENABLE_CACHE)) {
     return
   }
-  await getApi().delCache(key)
+  await cacheApi.delCache(key)
 }
 
-/**
- * 缓存实现类
- * @returns
- */
-function getApi() {
-  if (process.env.ENABLE_FILE_CACHE) {
-    return FileCache
-  } else {
-    return MemoryCache
-  }
-}
+// 缓存实现类
+const cacheApi = process.env.ENABLE_FILE_CACHE ? FileCache : MemoryCache