Hl.Code/TimeHelper.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Hl.Code
{
    public class TimeHelper
    {
        /// <summary>
        /// 计算时间差
        /// </summary>
        /// <param name="timeClose">截止日期</param>
        /// <param name="timeStart">开始日期</param>
        /// <returns></returns>
        public static int GetTimePoor_Day(DateTime timeClose, DateTime timeStart)
        {
            int timePoor = 0;
            #region "开始处理"
            TimeSpan ts2 = new TimeSpan(timeClose.Ticks);
            TimeSpan ts1 = new TimeSpan(timeStart.Ticks);
            TimeSpan ts0 = ts2.Subtract(ts1).Duration();
            timePoor = ts0.Days;
            #endregion
            return timePoor;
        }

        public static string GetCurMonthStart()
        {
            return DateTime.Now.ToString("yyyy-MM-") + "01";
        }

        public static string GetCurMonthClose()
        {
            string returnInfo = DateTime.Now.ToString("yyyy-MM-");
            int years = DateTime.Now.Year;
            int month = DateTime.Now.Month;
            switch (month)
            {
                case 2: month = years % 4 == 0 ? 29 : 28; break;
                case 1: month = 31; break;
                case 3: month = 31; break;
                case 5: month = 31; break;
                case 7: month = 31; break;
                case 8: month = 31; break;
                case 10: month = 31; break;
                case 12: month = 31; break;
                default: month = 30; break;
            }
            returnInfo = returnInfo + month;
            return returnInfo;
        }
    }
}