linq时间转换，int转换成string

// int转string 查询多个Id

  var a = context.QuoteLogInfo.Where(m => ids.Contains(SqlFunctions.StringConvert((double)m.Id).Trim())); 

 //根据时间查询

  int count = context.MessageLog.Count(m => m.Ip == ipAddress&&SqlFunctions.DateDiff("dd",DateTime.Now,m.SendTime)==0); 

 //根据sql语句查询

  var reqList = context.Database.SqlQuery<SellerQuery>(sql).AsQueryable();