update

node/message.js

@@ -1992,7 +1992,7 @@ us.getcscl = function (response, calssid, pageid, userid) {
         if (!us.cscl[calssid].user[userid]) {
             us.cscl[calssid].user[userid] = [pageid];
         }
-        else {
+        else if (us.cscl[calssid].user[userid].indexOf(pageid) == -1) {
             us.cscl[calssid].user[userid].push(pageid);
         }
         try {
@@ -2032,7 +2032,7 @@ us.getcscl = function (response, calssid, pageid, userid) {
                     response.end(JSON.stringify(ret)); //返回文档内容
                 }
                 else {
-                    us.cscl[calssid].content = []; //创建一个空数组
+                    us.cscl[calssid].content = {}; //创建一个空数组
                     response.end(''); //返回文档内容 
                 }
             });