C#调用explorer资源管理器打开文件夹，不行啊

namespace NewDateFloder
{
    class Program
    {
        static void Main(string[] args)
        {
            string FloderPath = @"F:";
            string Date = DateTime.Now.ToString("yyyyMMddHHmmss").Substring(0, 8);
            if (!Directory.Exists(FloderPath + "\" + Date))//能否存在
            {
                Directory.CreateDirectory(FloderPath + "\" + Date);
                System.Diagnostics.Process.Start(FloderPath);
                System.Diagnostics.Process.Start("Explorer.exe",FloderPath);   
            }
            
        }
    }
}