Qt秒到DD HH SS [英] Qt seconds to DD HH SS

问题描述

使用Qt 4.8如何以DD HH SS格式打印时间？我有秒钟，我想找回这种格式的字符串。

using Qt 4.8 how can I print the time in the format DD HH SS? I have the seconds and I want to get back a string in that format.

推荐答案

QDateTime::fromTime_t(seconds).toString("ss hh DD");

请参见 http://qt-project.org/doc/qt-5.0/qdatetime.html#toString

如果您想要持续时间（您的问题还不清楚），请尝试以下操作：

If you want a duration ( your question was really unclear) try something like :

QString seconds_to_DHMS(quint32 duration)
{
  QString res;
  int seconds = (int) (duration % 60);
  duration /= 60;
  int minutes = (int) (duration % 60);
  duration /= 60;
  int hours = (int) (duration % 24);
  int days = (int) (duration / 24);
  if((hours == 0)&&(days == 0))
      return res.sprintf("%02d:%02d", minutes, seconds);
  if (days == 0)
      return res.sprintf("%02d:%02d:%02d", hours, minutes, seconds);
  return res.sprintf("%dd%02d:%02d:%02d", days, hours, minutes, seconds);
}

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