Update login Back-End Code
Update login Back-End Code

KingsleyXie/ProgrammingWorksCompetition,KingsleyXie/ProgrammingWorksCompetition,KingsleyXie/CompetitionRegistrationSystem,KingsleyXie/CompetitionRegistrationSystem,KingsleyXie/ProgrammingWorksCompetition,KingsleyXie/CompetitionRegistrationSystem