目录操作-SYSTEM.IO

using System;
using System.Data;
using System.Text;
using System.IO;

namespace TestApp
{
    class Program
    {
        static void Main()
        {
            DataSet ds = new DataSet("carRepairs");
            string path = Environment.CurrentDirectory;
            path = Directory.GetParent(path).FullName;
            path = Directory.GetParent(path).FullName;
            path = Path.Combine(path, "toucai.xsd");
            ds.ReadXmlSchema(path);
            Console.WriteLine(ds.Tables.Count);            
        }             
    }
}