根据时间段和周几查询包含的周几对应的日期

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

namespace weekDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            DayOfWeek[] dw = new DayOfWeek[] { DayOfWeek.Monday, DayOfWeek .Sunday};
            var query = GetWeekDays(DateTime.Now, DateTime.Now.AddMonths(1), dw);
            foreach (var item in query.ToList())
            {
                Console.WriteLine(item.ToShortDateString() + "--星期：" + System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(item.DayOfWeek));
            }
           
        }


        public static IEnumerable<DateTime> GetWeekDays(DateTime begin, DateTime end,DayOfWeek[] dws)
        {
            return Enumerable.Range(0, (end - begin).Days).Where(c => dws.Contains(begin.AddDays(c).DayOfWeek)).Select(c => begin.AddDays(c));
        }


    }
}