private void button2_Click ( object sender , System.EventArgs e )

        {

        string FileName = textBox1.Text ;

        string section = textBox2.Text ;

        string key = textBox3.Text ;

        string keyValue = textBox4.Text ;

        WritePrivateProfileString ( section , key , keyValue , FileName ) ;

               MessageBox.Show  ( "成功写入INI文件！" , "信息" ) ;

               }

private void button3_Click ( object sender , System.EventArgs e )

        {

               StringBuilder temp = new StringBuilder ( 255 ) ;

               string FileName = textBox1.Text ;

               string section = textBox2.Text ;

               string key = textBox3.Text ;

               int i = GetPrivateProfileString ( section , key ,"无法读取对应数值！",

               temp , 255 , FileName ) ;

                       //显示读取的数值

                       textBox4.Text = temp.ToString  ( ) ;

               }