age:n
                            }
                        }).then(function(res){
                            //console.log(res.data);
                            var arr=res.data;
                            for(var i=0; i<arr.length; i++){
                               this.msgData.push({
                                   content:arr[i].content,
                                   time:arr[i].time,
                                   acc:arr[i].acc,
                                   ref:arr[i]