public async Task <JsonResponse> DeleteRole(int id)
{
var role = (await _roleServices.Query(p => p.Id == id)).SingleOrDefault();
if (role == null)
{
throw new UserOperationException("角色不存在");
}
var dResult = _roleServices.DeleteById(id);
if (dResult <= 0)
{
throw new UserOperationException("删除失败");
}
return(new JsonResponse(true));
}