linq分组查询

最新推荐文章于 2024-04-30 13:16:51 发布

转载最新推荐文章于 2024-04-30 13:16:51 发布 · 79 阅读

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原文链接：http://www.cnblogs.com/mingjian/p/4202498.html

string[] arrStr = { ".com", "www.baidu.com", "www.qq.com", "www.bing.cn", "www.avc.net","www.vvv.cn","www.bbb.net" };

//定义查询规则

var addressG = from gg in arrStr
                           where gg.LastIndexOf(".") != -1
                           group gg by gg.Substring(gg.LastIndexOf("."));

//执行查询

//迭代每一组

foreach (var grp in addressG)
{

//迭代每组里的值
                foreach (var item in grp)
                {
                    Console.WriteLine(grp.Key+":"+item);
                }
            }

转载于:https://www.cnblogs.com/mingjian/p/4202498.html