js毫秒数转天时分秒

formatDuring: function(mss) {

  var days = parseInt(mss / (1000 * 60 * 60 * 24));

  var hours = parseInt((mss % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));

  var minutes = parseInt((mss % (1000 * 60 * 60)) / (1000 * 60));

  var seconds = (mss % (1000 * 60)) / 1000;

  return days + " 天 " + hours + " 小时 " + minutes + " 分钟 " + seconds + " 秒 ";

}