一纸年华

摘要： var customers = await _db.Db.Queryable<Customer>() .Where(a => projectNumberIds.Contains(a.Id)) .Select(a => new { a.Id, a.Name }).ToListAsync(); var 阅读全文

摘要： List<int> codes = item.ProductCodes.Split(",") .Select(a => int.TryParse(a, out int code) ? code : 0) .Where(code => code > 0).ToList(); 阅读全文