如果遇到逻辑错误错误(过期用户,无效ID),那么从以下方面告诉父方法此错误的最佳方法是什么：
1-抛出自定义异常,如下所示：
try
{
//if (ID doesn't match) then
Throw new CustomException(-1,"ID doesn't match");
}
catch(CustomException ex)
{
throw ex
}
catch(Exception ex)
{
throw new CustomException(ex.ErrorCode,ex.message);
}
//if (ID doesn't match) then This.ErrorCode= -1; This.Message= "ID doesn't match";
