program1(DateTime.Now).cs

using System;
using System.Prig;
using Urasandesu.Prig.Framework;

namespace program1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("★入れ替え前: {0}", DateTime.Now);
            using (new IndirectionsContext())
            {
                var count = 0;
                PDateTime.NowGet.Body = () =>
                {
                    if (5 <= ++count)
                        return new DateTime(2013, 12, 23, 11, 22, 33, 44);
                    else
                        return IndirectionsContext.ExecuteOriginal(() => DateTime.Now);
                }; 
                Console.WriteLine("★入れ替え中: {0}", DateTime.Now);
                Console.WriteLine("★入れ替え中: {0}", DateTime.Now);
                Console.WriteLine("★入れ替え中: {0}", DateTime.Now);
                Console.WriteLine("★入れ替え中: {0}", DateTime.Now);
                Console.WriteLine("★入れ替え中: {0}", DateTime.Now); // ------- これ以降が変わる
                Console.WriteLine("★入れ替え中: {0}", DateTime.Now);
            }
            Console.WriteLine("★戻し:       {0}", DateTime.Now);
        }
    }
}