diff --git a/app.js b/app.js
index e28a642..b691612 100644
--- a/app.js
+++ b/app.js
@@ -1,4 +1,5 @@
 'use strict';
+
 var express = require('express');
 var timeout = require('connect-timeout');
 var path = require('path');
diff --git a/server.js b/server.js
index 6434963..2cc7a39 100644
--- a/server.js
+++ b/server.js
@@ -1,4 +1,5 @@
 'use strict';
+
 var AV = require('leanengine');
 
 AV.init({
@@ -21,9 +22,9 @@ app.listen(PORT, function (err) {
 
   // 注册全局未捕获异常处理器
   process.on('uncaughtException', function(err) {
-    console.error("Caught exception:", err.stack);
+    console.error('Caught exception:', err.stack);
   });
   process.on('unhandledRejection', function(reason, p) {
-    console.error("Unhandled Rejection at: Promise ", p, " reason: ", reason.stack);
+    console.error('Unhandled Rejection at: Promise ', p, ' reason: ', reason.stack);
   });
 });