C# linq 条件查询 多条件、追加条件

Expression<Func<Module, bool>> exp = x => true;
        if(queryDto.Name is not null)
        {
            exp = exp.And(x => (x.Name ?? String.Empty).StartsWith(queryDto.Name));
        }
        if(queryDto.Url is not null)
        {
            exp = exp.And(x => (x.LinkUrl ?? String.Empty).StartsWith(queryDto.Url));
        }
        var page = await _moduleRepository.GetPagedAsync(queryDto,exp,x => x.Id);
        return ObjectMapper.Map<ResponsePage<Module>, ResponsePage<ModuleDto>>(page);