高分求c#方法

Question

如何处理datetime的问题，可以msdn http://msdn.microsoft.com/en-us/library/system.datetime.aspx

Answer 1

using System;
 
namespace WindowsApplication2
{
    public class DateTimeHelper
    {
        /**/
        /// <summary>
        /// 获取随机时间
        /// <res>
        /// 由于Random 以当前系统时间做为种值,所以当快速运行多次该方法所得到的结果可能相同,
        /// 这时,您应该在外部初始化 Random 实例并调用 GetRandomTime(DateTime time1, DateTime time2, Random random)
        /// </res>
        /// </summary>
        /// <param name="time1"></param>
        /// <param name="time2"></param>
        /// <returns></returns>
        public static DateTime GetRandomTime(DateTime time1, DateTime time2)
        {
            Random random = new Random();
            return GetRandomTime(time1, time2, random);
        }
 
        /**/
        /// <summary>
        /// 获取随机时间
        /// </summary>
        /// <param name="time1"></param>
        /// <param name="time2"></param>
        /// <param name="random"></param>
        /// <returns></returns>
        public static DateTime GetRandomTime(DateTime time1, DateTime time2, Random random)
        {
            DateTime minTime = new DateTime();
            DateTime maxTime = new DateTime();
 
            System.TimeSpan ts = new System.TimeSpan(time1.Ticks - time2.Ticks);
 
            // 获取两个时间相隔的秒数
            double dTotalSecontds = ts.TotalSeconds;
            int iTotalSecontds = 0;
 
            if (dTotalSecontds > System.Int32.MaxValue)
            {
                iTotalSecontds = System.Int32.MaxValue;
            }
            else if (dTotalSecontds < System.Int32.MinValue)
            {
                iTotalSecontds = System.Int32.MinValue;
            }
            else
            {
                iTotalSecontds = (int)dTotalSecontds;
            }
 
 
            if (iTotalSecontds > 0)
            {
                minTime = time2;
                maxTime = time1;
            }
            else if (iTotalSecontds < 0)
            {
                minTime = time1;
                maxTime = time2;
            }
            else
            {
                return time1;
            }
 
            int maxValue = iTotalSecontds;
 
            if (iTotalSecontds <= System.Int32.MinValue)
            maxValue = System.Int32.MinValue;
 
            int i = random.Next(System.Math.Abs(maxValue));
 
            return minTime.AddSeconds(i);
        }
    }
}
 
 
 
 
 
//测试
//MessageBox.Show(DateTimeHelper.GetRandomTime(DateTime.Parse("2008-09-27 00:00"),DateTime.Parse("2008-09-30 00:00")).ToString("yyyy-MM-dd hh:mm"))

Answer 2

哈哈哈，好吧，已经OK了，感谢happy09li

Answer 3

        public void WriteMessage(string message)
        {
            #region
            if (!Directory.Exists(Application.StartupPath + "\\Result"))
                Directory.CreateDirectory(Application.StartupPath + "\\Result");            string sPath = Application.StartupPath + "\\Result\\" + System.DateTime.Now.ToString("yyyy-MM-dd") + ".txt";            FileInfo fiInfo = new FileInfo(sPath);
            StreamWriter swWriter = fiInfo.AppendText();            swWriter.WriteLine(message);
            swWriter.Flush();
            swWriter.Close();
            #endregion
        }        private void btnOK_Click(object sender, EventArgs e)
        {
            #region
            bool isError = false;
            int iHour = 0;
            int iMinute = 0;
            int iSecond = 0;            string sHour = string.Empty;
            string sMinute = string.Empty;
            string sSecond = string.Empty;            int iBeginTime = 0;
            int iCount = 0;
            int iEndTime = 0;
            try
            {
                iBeginTime = int.Parse(this.beginTime.Text);
                iEndTime = int.Parse(this.endTime.Text);
                iCount = int.Parse(this.txtTimes.Text);
            }
            catch
            {
                isError = true;
                MessageBox.Show("“设置时间”出错！请选择合理的时间间隔！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }            Random random = new Random();
            string[] sArray = this.beginDate.Text.Split('-');
            int iBeginYear = int.Parse(sArray[0]);
            int iBeginMonth = int.Parse(sArray[1]);
            int iBeginDay = int.Parse(sArray[2]);            DateTime dtTime1 = new DateTime(iBeginYear, iBeginMonth, iBeginDay);            sArray = this.endDate.Text.Split('-');
            int iYear = int.Parse(sArray[0]);
            int iMonth = int.Parse(sArray[1]);
            int iDay = int.Parse(sArray[2]);            DateTime dtTime2 = new DateTime(iYear, iMonth, iDay);            TimeSpan tsSpan = dtTime2.Subtract(dtTime1);
            int iMinusDay = tsSpan.Days;
            string sBeginPart = string.Empty;
            if (!isError)
            {
                for (int i = 0; i < iMinusDay + 1; i++)
                {
                    sBeginPart = dtTime1.ToString("yyyy-MM-dd");                    for (int j = 0; j < iCount; j++)
                    {
                        try
                        {                            iHour = random.Next(iBeginTime, iEndTime);
                        }
                        catch
                        {
                            MessageBox.Show("“设置时间”出错！“开始时刻”不能大于“结束时刻”！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                            isError = true;
                            break;
                        }
                        if (iHour < 10)
                            sHour = "0" + iHour;
                        else sHour = "" + iHour;                        iMinute = random.Next(0, 61);
                        if (iMinute < 10)
                            sMinute = "0" + iMinute;
                        else sMinute = "" + iMinute;                        iSecond = random.Next(0, 61);
                        if (iSecond < 10)
                            sSecond = "0" + iSecond;
                        else sSecond = "" + iSecond;                        WriteMessage(sBeginPart + " " + sHour + ":" + sMinute + ":" + sSecond);
                        MessageBox.Show(sBeginPart + " " + sHour + ":" + sMinute + ":" + sSecond);
                    }
                    WriteMessage(" ");
                    dtTime1 = dtTime1.AddDays(1);
                }
                if (!isError)
                    MessageBox.Show("数据产生完毕 ....");
            }