这句语句如何理解？

[Big鹏]

  //根据用户Id获得个人消息
//IList<Message>是什么意思？？？
        public static IList<Message> GetReceiveMessage(string userId, DateTime AvailTime)
        {
            string sql = "SELECT a.* FROM Message a,MessageToUser b where a.MessageId = b.Messageid and a.IfPublish='1' and b.ToUserId='" + userId + "' and a.fromuserid<>'" + userId + "' and Convert(DateTime,'" + AvailTime + "') between BeginTime and EndTime";
            sql += " union SELECT a.* FROM Message a,MessageToUser b where a.MessageId = b.Messageid and a.IfPublish='1' and b.ToUserId='0' and a.fromuserid<>'" + userId + "' and Convert(DateTime,'" + AvailTime + "') between BeginTime and EndTime";
            return GetMessagesBySql(sql);
        }

[shenweiblue]

IList<Message> 集合啊!!!,获取ID,遍历啊!!!。LZ多看书啊。

[hanhanmj]

一个泛型接口，返回一个集合..

[thinsoft]

jf

[liangweiwei130]

泛型