/// <summary>
/// 检查异常信息是否存在
/// </summary>
/// <param name="predicate">检查谓语表达式</param>
/// <param name="id">更新的异常信息编号</param>
/// <returns>异常信息是否存在</returns>
public bool CheckProblemExists(Expression <Func <Problem, bool> > predicate, int id = 0)
{
return(ProblemRepository.CheckExists(predicate, id));
}