public async Task <IActionResult> GetAllMajorDetailByMjNum(string Num)
{
var mjs = await _majorService.GetMajorsByMjNum(Num);
if (mjs.Count == 0)
{
return(NotFound());
}
var res = _mapper.Map <List <MajorDetailDto> >(mjs);
return(Ok(res));
}