C#读写INI文件小程序

public   class   INIClass   
  {   
  public   string   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);   
  ///   <summary>   
  ///   构造方法   
  ///   </summary>   
  ///   <param   name="INIPath">文件路径</param>   
  public   INIClass(string   INIPath)   
  {   
  inipath   =   INIPath;   
  }   
  ///   <summary>   
  ///   写入INI文件   
  ///   </summary>   
  ///   <param   name="Section">项目名称(如   [DataTP]   )</param>   
  ///   <param   name="Key">键</param>   
  ///   <param   name="Value">值</param>   
  public   void   IniWriteValue(string   Section,string   Key,string   Value)   
  {   
  WritePrivateProfileString(Section,Key,Value,this.inipath);   
  }   
  ///   <summary>   
  ///   读出INI文件   
  ///   </summary>   
  ///   <param   name="Section">项目名称(如   [DataTP]   )</param>   
  ///   <param   name="Key">键</param>