public ResponseMessageWrap <int> DeleteById(long id)
 {
     return(new ResponseMessageWrap <int>
     {
         Body = PaperAnswerService.DeleteById(id)
     });
 }
 public ResponseMessageWrap <int> Update([FromBody] PaperAnswer paperAnswer)
 {
     return(new ResponseMessageWrap <int>
     {
         Body = PaperAnswerService.Update(paperAnswer)
     });
 }
 public PaperAnswerController(PaperAnswerService paperAnswerService, IPaperAnswerRepository paperAnswerRepository)
 {
     PaperAnswerService    = paperAnswerService;
     PaperAnswerRepository = paperAnswerRepository;
 }