public frmReg() { InitializeComponent(); isClose = false; isSuccess = false; string regStr = ""; if (FileHelper.IsExists(SysInfo.fileName)) { regStr = FileHelper.ReadFile(SysInfo.fileName); } else { regStr = "00000000000000000000000000000000"; FileHelper.writeFile(SysInfo.fileName, regStr); } this.textBox1.Text = SysInfo.GetRegStr1(); }