function timestampToTime(val) {    var val = new Date(val)        var year = val.getFullYear();        var month = (val.getMonth()+1 < 10 ? '0'+(val.getMonth()+1) : val.getMonth()+1);        var date = (val.getDate() < 10 ? '0'+(val.getDate()) : val.getDate());        var hour = (val.getHours() < 10 ? '0'+(val.getHours()) : val.getHours());        var minute = (val.getMinutes() < 10 ? '0'+(val.getMinutes()) : val.getMinutes());        var second = (val.getSeconds() < 10 ? '0'+(val.getSeconds()) : val.getSeconds());        return year+'-'+month+'-'+date+' '+hour+':'+minute+':'+second;}

日期格式化函数。不够补零。