【转】ini载入保存类,操作INI配置文件方便的很

/******************************************************************
 * 
 *  ^_^ 恶猫 独门商标 挖哈哈
 * 
 *  QQ:\>23559055 
 * 
 *  Site:\>http://emao.me  
 * 
 * ================================================================
 * 
 * 说明:
 * 
 *        1.命名空间: Emao_CfgManager
 *          类名    : CfgManager
 * 
 *         2.声明: CfgManager cm = new CfgManager();
 * 
 *        3.具体方法自己看代码吧哈。简单的很。
 *                
 *                  分别是：add() readAll() writeAll()
 * 
 ******************************************************************/
using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace Emao_CfgManager
{
    public class CfgManager
    {
        private Dictionary<string ,string> dict= new Dictionary<string,string>();
        private string filename = Application.StartupPath + @"\config.ini";

        #region API
        [DllImport("kernel32.dll")]
        public extern static int GetPrivateProfileString(string segName, string keyName, string sDefault, byte[] bt, int nSize, string fileName);
        [DllImport("kernel32.dll")]
        public extern static int WritePrivateProfileString(string segName, string keyName, string sValue, string fileName);

        [DllImport("kernel32.dll")]
        public extern static int GetPrivateProfileSection(string segName, StringBuilder buffer, int nSize, string fileName);
        [DllImport("kernel32.dll")]
        public extern static int WritePrivateProfileSection(string segName, string sValue, string fileName);


        #endregion

        #region constructure
        public CfgManager()
        {
            ReadAll();
        }
        public CfgManager(string inipath)
        {
            filename = inipath;
            ReadAll();
        }
        #endregion

        #region method
        public int Add(object key, object value)
        {
            if (this.dict.ContainsKey(key.ToString()))
                this.dict[key.ToString()] = value.ToString();
            else
                this.dict.Add(key.ToString(), value.ToString());
            return this.dict.Count;
        }
        public void ReadAll()
        {
            this.dict.Clear();
            //读取ini文件所有
            StringBuilder sb = new StringBuilder(25500);
            Byte[] bt = new Byte[25000];
            int len = GetPrivateProfileString("Config", null, "", bt, bt.GetUpperBound(0), filename);
            if (len != 0)
            {
                int start = 0;
                for (int i = 0; i < len; i++)
                {
                    if ((bt[i] == 0) && ((i - start) > 0))
                    {
                        String s = Encoding.GetEncoding(0).GetString(bt, start, i - start);
                        Byte[] temp = new Byte[25500];
                        int i2 = GetPrivateProfileString("Config", s, "", temp, 25500, filename);
                        string value = System.Text.Encoding.Default.GetString(temp).Replace('\0', ' ');
                        this.dict.Add(s, value.TrimEnd());
                        start = i + 1;
                    }
                }
            }
        }
        public void ReadAll(string sectionName)
        {
            this.dict.Clear();
            //读取指定节点
        }
        public void WriteAll()
        {
            foreach (var dic in dict)
            {
                WritePrivateProfileString("Config",dic.Key,dic.Value,filename);
            }
        }
        public string this[string key]
        {
            get
            {
                if (key.Trim() == "")
                {
                    return "";
                }
                if (!this.dict.ContainsKey(key)) return "";
                return this.dict[key];
            }
            set
            {
                if (!this.dict.ContainsKey(key))
                    this.dict.Add(key, value);
                else
                    this.dict[key] = value;
            }
        }
        #endregion

        #region Function
        
        #endregion

        #region property
        public int Count
        {
            get { return this.dict.Count; }
        }
        #endregion

    }
}

原文：http://www.oschina.net/code/snippet_191468_13277