             for (var i = 0; i < dataList.length; i++) {
                                dataList[i].id = i;
                            }
                        } else if (content !== dataList[id].content) {
                            dataList[id].content = content;
                            dataList[id].time = util.toDateString(new Date(), 'yyyy-MM-dd HH:mm');
                        }
                    } else if (content) {
                        dataList.push({
                          