Asp.net 时间操作基类(支持短日期,长日期,时间差)

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
namespace EC
{
/// <summary>
/// 时间操作函数
/// </summary>
public class TimeObject
{
/// <summary>
/// 时间差
/// </summary>
/// <param>开始时间</param>
/// <param>结束时间</param>
/// <returns></returns>
public static string GetTimeSpan(DateTime starttime, DateTime endtime)
{
TimeSpan ts = endtime - starttime;
return string.Format("{0}时{1}分{2}秒{3}毫秒", ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds);
}
/// <summary>
/// 转称为月-日:09-12
/// </summary>
/// <param>日期</param>
/// <returns></returns>
public static string ToDateMonthDay(DateTime d)
{
return d.ToString("MM-dd");
}
/// <summary>
/// 转换为年月日:2006-09-12
/// </summary>
/// <param></param>
/// <returns></returns>
public static string ToDateString(DateTime d)
{
return d.ToString("yyyy-MM-dd");
}
/// <summary>
/// 转换为:小时:分:秒 00:29:58
/// </summary>
/// <param></param>
/// <returns></returns>
public static string ToTimeString(DateTime t)
{
return t.ToString("HH:mm:ss");
}
/// <summary>
/// 转换为长时间:2006-09-12 00:30:57
/// </summary>
/// <param></param>
/// <returns></returns>
public static string ToDateTimeString(DateTime dt)
{
return dt.ToString("yyyy-MM-dd HH:mm:ss");
}
}
}

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