code-comment

@@ -13,6 +13,9 @@ const indexModel = require('../models/brand');
 const typeLib = require('../../../config/type-lib');
 const qs = require('querystring');
 
+/**
+ * 从 path 获取 channel
+ */
 const _getChannelFromPath = (req) => {
     let pathWithoutParams = _.trimEnd(_.first(_.split(req.path, '?')), '/');
     let pathLast = _.last(_.split(pathWithoutParams, '/'));