using System;
using System.IO;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Runtime.InteropServices;
using System.Text;

namespace File_IO
{
    
    public class inifile
    {
        public string Path;
        public string Section;
        public string Key;
        public string value;
        public inifile(string path)
        {
            this.Path=path;
        }
#region 声明读写INI的API函数
        [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 defVal, StringBuilder retVal, int size, string filePath); 
        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section, string key, string defVal, Byte[] retVal, int size, string filePath);
#endregion

 public void openorcreat()
        {
            if (File.Exists(Path))
            {
            }
            else
            {
                File.Create(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();
        }
 public string IniReadValue()
        {
            return IniReadValue(Section, Key);
        }

 public void IniWriteValue()
        {
            IniWriteValue(Section, Key, value);
        }
        public void IniWriteValue(string Section, string Key, string value) 
        {
            WritePrivateProfileString(Section, Key, value, this.Path);
        }

 public void removeKey(string Section, string Key)
        {
            IniWriteValue(Section, Key, null);
        }

public string[] GetKeyNames(string Section)
        {
            byte[] allKeys = IniReadValues(Section, null);
            string[] keylist;
            string keynames;
            ASCIIEncoding scii = new ASCIIEncoding();
            keynames = scii.GetString(allKeys);
            keylist = keynames.Split(new char[1] { ‘\0‘ });
            return keylist;
        }

public string[] GetSectionNames()
       {
           byte[] allSection = IniReadValues(null, null);
           string[] sectionList;
           string sections;
           ASCIIEncoding ascii = new ASCIIEncoding();
           sections = ascii.GetString(allSection);
           sectionList = sections.Split(new char[1] { ‘\0‘ });
           return sectionList;
       }