using System.Runtime.InteropServices;
using System.Text;

namespace CreateWebDir
{
    /// <summary>
    /// INIFile 的摘要說明
    /// </summary>
    public class INIFile
    {

        public string path;

        public INIFile(string INIPath)
        {
            path = INIPath;
        }

        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section,
         string key, string val, string filePath);

        [DllImport("kernel32")]

        private static extern int GetPrivateProfileString(string section,
         string key, string def, StringBuilder retVal, int size, string filePath);

        public void IniWriteValue(string Section, string Key, string Value)
        {
            WritePrivateProfileString(Section, Key, Value, this.path);
        }

        public string IniReadValue(string Section, string Key)
        {
            StringBuilder temp = new StringBuilder(255);

            int i = GetPrivateProfileString(Section, Key, "", temp, 255, this.path);

            return temp.ToString();

        }
    }
}

using System.IO;

public partial class user_Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        CreateWebDir.INIFile ab = new CreateWebDir.INIFile(@"F:\test");

        string iniFile = @"F:\test\test.ini";
        if (!File.Exists(iniFile))
        {
            using (FileStream fs = File.Create(iniFile))
            {
                fs.Close();
            }
        }

        string[] args = new string[10];

        CreateWebDir.INIFile myINI = new CreateWebDir.INIFile(iniFile);

        for (int i = 0; i < args.Length; i++)
        {
            args[i] = Convert.ToString(i + i * i * i);
            myINI.IniWriteValue("WebDir", "arg" + i.ToString(), args[i]);
        }
    }
}

using System.IO;

public partial class user_Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        CreateWebDir.INIFile ab = new CreateWebDir.INIFile(@"F:\test\test.ini");

        Response.Write(ab.IniReadValue("WebDir", "arg5"));
    }
}