C#实现ini文件读写操作

 /// <summary>  /// 配置文件 .ini操作类  /// </summary>  public class IniFileUtils  {    /// <summary>    /// 写入INI文件    /// </summary>    /// <param name="section">节点名称[如TypeName]</param>    /// <param name="key">键</param>    /// <param name="val">值</param>    /// <param name="filepath">文件路径</param>    /// <returns></returns>    [DllImport("kernel32")]    private static extern long WritePrivateProfileString(string section, string key, string val, string filepath);    /// <summary>    /// 读取INI文件    /// </summary>    /// <param name="section">节点名称</param>    /// <param name="key">键</param>    /// <param name="def">值</param>    /// <param name="retval">stringbulider对象</param>    /// <param name="size">字节大小</param>    /// <param name="filePath">文件路径</param>    /// <returns></returns>    [DllImport("kernel32")]    private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retval, int size, string filePath);    /// <summary>    /// 写入或更新.ini配置文件属性值    /// </summary>    /// <param name="section">区域（节点）</param>    /// <param name="key">key键属性名称</param>    /// <param name="value">key键对应属性值param>    /// <param name="path">.ini文件所在路径</param>    public static void WriteContentValue(string section, string key, string value, string path)    {      //判断文件是或否存在      if (File.Exists(path))      {        WritePrivateProfileString(section, key, value, path);      }    }    /// <summary>    /// 读取.ini配置文件属性值    /// </summary>    /// <param name="Section">区域(节点)</param>    /// <param name="key">key键属性名称</param>    /// <param name="path">.ini文件所在路径</param>    /// <returns></returns>    public static string ReadContentValue(string Section, string key, string path)    {      StringBuilder temp = new StringBuilder(1024);      //判断文件是或否存在      if (File.Exists(path))      {        GetPrivateProfileString(Section, key, "", temp, 1024, path);      }      return temp.ToString();    }}