在Winform窗口中藏匿“字符串指令”

private void MainWindow_KeyPress(object sender, KeyPressEventArgs e)
        {
            var k = e.KeyChar;
            if (char.IsLetterOrDigit(k))
            {
                sb.Append(k);
            }
            else if ((Keys)k == Keys.Space)
            {
                //string CurrentCfgFilePath = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile; MessageBox.Show(CurrentCfgFilePath);
                var keyString = sb.ToString();
                
                if (keyString == "open")
                {
                    const string path = @".\NewMT20GUI.exe.config";  
                    System.Diagnostics.Process.Start(path);     //配置文档的打开操作
                    MessageBox.Show("配置文件打开成功！");
                }
                else if (keyString == "load")
                {
                    InitializeCfgData();
                    //string str = string.Format("p={0}", _pValue);
                    string str = string.Format("_alarmTemperature={0}", _alarmTemperature);
                    MessageBox.Show("配置文件加载成功!"+str);
                }
                sb.Clear();
            }
        }