namespace _15_2
{
    internal class Program
    {
        static void Main(string[] args)
        {
            string path0 = @"c:\Windows\security";
            string path1 = @"c:\Windows";
            try
            {
                Console.WriteLine("当前工作目录：\n{0}", Directory.GetCurrentDirectory());
                string[] subDirectory = Directory.GetDirectories(Directory.GetDirectoryRoot(Directory.GetCurrentDirectory()));
                Console.WriteLine("根目录里的子目录数{0}，其名称分别为：\n", subDirectory.Length);
                foreach (string items in subDirectory)
                {
                    Console.WriteLine(items);
                }
                string[] dirs = Directory.GetFiles(path0);
                Console.WriteLine("{0}目录下文件总数{1}，分别是", path0, dirs.Length);
                foreach (string items in dirs)
                {
                    Console.WriteLine(items);
                }
                string[] dir1 = Directory.GetFiles(path1, "*.ini");
                Console.WriteLine("{0}目录下文件后缀为ini的文件总数{1}，分别是", path0, dir1.Length);
                foreach (string items in dir1)
                {
                    Console.WriteLine(items);
                }
            }
            catch (Exception e)
            { 
                Console.WriteLine("\n 操作失败:{0}",e.ToString());
            }
        }
    }
}