using System;
using System.Data;
using System.Linq;

namespace BLL
{
    /// <summary>
    /// 时间操作辅助类
    /// </summary>
    public class DateHelper
    {
        /// <summary>
        /// 计算两个日期之间相差多少天
        /// </summary>
        /// <param name="date1">先</param>
        /// <param name="date2">后</param>
        /// <returns></returns>
        public static int DaysDifference(DateTime date1, DateTime date2)
        {
            int result = 0;
            // 计算两个日期之间的天数差
            TimeSpan difference = date2.Subtract(date1);
            result = Math.Abs(difference.Days); //使用绝对值获取正数差值
            return result;
        }
    }
}