private void LoginInplan() { appManager.Login(s1, s2); theJob = jobManager.OpenJob(jobName); if (appManager.ErrorStatus() != 0) { string logoex = ""; //消息框弹窗内容、弹窗标题、确定按钮 MessageBox.Show("Inplan外部登录: " + appManager.ErrorMessage(), "Error", MessageBoxButtons.OK); Application.Exit(); } if (theJob is null && logintimes <= 2) { logintimes = logintimes + 1; LoginInplan(); //MessageBox.Show("未能成功登录"); }