返回时间差

#region 返回时间差
public static string DateDiff(string strDateTime)
{
    DateTime DateTime1 = Convert.ToDateTime(strDateTime),DateTime2 = DateTime.Now;
    string dateDiff = null;
    try
    {
        TimeSpan ts = DateTime2 - DateTime1;
        if (ts.Days >= 1)
        {
            dateDiff = DateTime1.Month.ToString() + "月" + DateTime1.Day.ToString() + "日";
        }
        else
        {
            if (ts.Hours > 1)
            {
                dateDiff = ts.Hours.ToString() + "小时前";
            }
            else
            {
                dateDiff = ts.Minutes.ToString() + "分钟前";
            }
        }
    }
    catch
    { }
    return dateDiff;
}
#endregion