link用循环计算两个日期之间有多少工作日

Question

用循环计算两个日期之间有多少工作日，link怎么实现？用takewhile怎么代替while？

Answer 1

不考虑过节和轮休，写一个给你

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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            var dt1 = new DateTime(2014, 12, 1);
            var dt2 = DateTime.Now;
            var query = EnumDate(dt1).TakeWhile(x => x < dt2).Where(x => x.DayOfWeek != DayOfWeek.Sunday && x.DayOfWeek != DayOfWeek.Saturday);
            foreach (var item in query)
                Console.WriteLine(item);
        }

        static IEnumerable<DateTime> EnumDate(DateTime dt)
        {
            while (true)
            {
                yield return dt;
                dt = dt.AddDays(1);
            }
        }
    }
}