public string SignInJson(string inputJsonStr) { job = gm.getJsonResult(inputJsonStr); try { string account = job["Account"].ToString(); string password = job["Password"].ToString(); if (!account.Equals("") && !password.Equals("")) { return(main.SignIn(account, password)); } else { return(gm.getStageJson(false, msg.signNullError_cht)); } } catch (Exception ex) { Console.WriteLine(ex.Message); return(gm.getStageJson(false, msg.signError_cht)); } }