class ZT_INI{    /************************************************************************/    /*写操作     * strSection   节     * strKey       键     * strValue     需要写入的值     * strFilePath  配置文件的全路径（wince中只能使用绝对全路径）     */    /************************************************************************/    public static void PutINI(string strSection, string strKey, string strValue, string strFilePath)    {        INICommon(false, strSection, strKey, strValue, strFilePath);    }    /************************************************************************/    /* 读操作     * strSection   节     * strKey       键     * strDefault   如果未找到相应键对应的值则填入此值     * strFilePath  配置文件的全路径（wince中只能使用绝对全路径）     * 返回：       指定键的相应值     * 说明：       如果在文件中未找到相应节则添加，未找到相应键亦添加，如果键对应的值为空串则使用默认值填充ini文件并返回    /************************************************************************/    public static string GetINI(string strSection, string strKey, string strDefault, string strFilePath)    {        return INICommon(true, strSection, strKey, strDefault, strFilePath);    }    private static string[] Split(string input, string pattern)    {        string[] arr = System.Text.RegularExpressions.Regex.Split(input, pattern);        return arr;    }    private static void AppendToFile(string strPath, string strContent)    {        FileStream fs = new FileStream(strPath, FileMode.Append);        StreamWriter streamWriter = new StreamWriter(fs, System.Text.Encoding.Default);        streamWriter.BaseStream.Seek(0, SeekOrigin.End);        streamWriter.WriteLine(strContent);        streamWriter.Flush();        streamWriter.Close();        fs.Close();    }    private static void WriteArray(string strPath, string[] strContent)    {        FileStream fs = new FileStream(strPath, FileMode.Truncate);        StreamWriter streamWriter = new StreamWriter(fs, System.Text.Encoding.Default);        streamWriter.BaseStream.Seek(0, SeekOrigin.Begin);        for (int i = 0; i < strContent.Length; i++)        {            if (strContent[i].Trim() == "\r\n")                continue;            streamWriter.WriteLine(strContent[i].Trim());        }        streamWriter.Flush();        streamWriter.Close();        fs.Close();    }    //INI解析    private static string INICommon(bool isRead, string ApplicationName, string KeyName, string Default, string FileName)    {        string strSection = "[" + ApplicationName + "]";        string strBuf;        try        {            //a.文件不存在则创建            if (!File.Exists(FileName))            {                FileStream sr = File.Create(FileName);                sr.Close();            }            //读取INI文件            System.IO.StreamReader stream = new System.IO.StreamReader(FileName, System.Text.Encoding.Default);            strBuf = stream.ReadToEnd();//读取ini文件            stream.Close();        }        catch (Exception e)        {            MessageBox.Show(e.ToString(), "INI文件读取异常");            return Default;        }        string[] rows = Split(strBuf, "\r\n");        string oneRow;        int i = 0;        for (; i < rows.Length; i++)        {            oneRow = rows[i].Trim();            //空行            if (0 == oneRow.Length)                continue;            //此行为注释            if (‘;‘ == oneRow[0])                continue;            //没找到            if (strSection != oneRow)                continue;            //找到了            break;        }        //b.没找到对应的section，创建一节并创建属性        if (i >= rows.Length)        {            AppendToFile(FileName, "\r\n" + strSection + "\r\n" + KeyName + "=" + Default);            return Default;        }        //找到section        i += 1; //跳过section         int bakIdxSection = i;//备份section的下一行        string[] strLeft;        //查找属性        for (; i < rows.Length; i++)        {            oneRow = rows[i].Trim();            //空行            if (0 == oneRow.Length)                continue;            //此行为注释            if (‘;‘ == oneRow[0])                continue;            //越界            if (‘[‘ == oneRow[0])                break;            strLeft = Split(oneRow, "=");            if (strLeft == null || strLeft.Length != 2)                continue;            //找到属性            if (strLeft[0].Trim() == KeyName)            {                //读                if (isRead)                {                    //c.找到属性但没有值                    if (0 == strLeft[1].Trim().Length)                    {                        rows[i] = strLeft[0].Trim() + "=" + Default;                        WriteArray(FileName, rows);                        return Default;                    }                    else                    {                        //找到了                                                return strLeft[1].Trim();                    }                }                //写                else                {                    rows[i] = strLeft[0].Trim() + "=" + Default;                    WriteArray(FileName, rows);                    return Default;                }            }        }        //d.没找到对应的属性,创建之并赋为默认        rows[bakIdxSection] = rows[bakIdxSection] + "\r\n" + KeyName + "=" + Default;        WriteArray(FileName, rows);        return Default;    }}

//文件路径string filePath = System.IO.Path.Combine(Common.Root, "config");//读string strGet = ZT_INI.GetINI("配置", "ip1", "", filePath);//写ZT_INI.PutINI("配置", "ip1", strGet, filePath);