增加 AV._config 挂载通用配置信息。

Author: wangxiao

lib/utils.js

@@ -7,10 +7,12 @@ var _ = require('underscore');
   require: false */
 module.exports = function(AV) {
 
-  var config = {
+  // 挂载一些配置
+  AV._config = AV._config || {};
+  _.extend(AV._config, {
     cnApiUrl: 'https://api.leancloud.cn',
     usApiUrl: 'https://us-api.leancloud.cn'
-  };
+  });
 
   /**
    * Contains all AV API classes and functions.
@@ -150,21 +152,21 @@ module.exports = function(AV) {
     };
   }
 
-   /**
-    *Use china avoscloud API service:https://cn.avoscloud.com
-    */
+  /**
+  *Use china avoscloud API service
+  */
   AV.useAVCloudCN = function(){
-    AV.serverURL = config.cnApiUrl;
+    AV.serverURL = AV._config.cnApiUrl;
   };
 
   /**
-  *Use USA avoscloud API service:https://us.avoscloud.com
+  *Use USA avoscloud API service
   */
   AV.useAVCloudUS = function(){
-    AV.serverURL = config.usApiUrl;
+    AV.serverURL = AV._config.usApiUrl;
   };
 
-
+  // 默认使用国内节点
   AV.useAVCloudCN();
 
   /**