用LinQ统计相同元素的数量
class TextEntList{
public string Ent { get; set; }
public string Text { get; set; }
}
class Program
{
static void Main(string[] args)
{
ArrayList textents = new ArrayList();
textents.Add(new TextEntList { Text = "L1", Ent = "e1", });
textents.Add(new TextEntList { Text = "L11", Ent = "e2", });
textents.Add(new TextEntList { Text = "L12", Ent = "e3", });
textents.Add(new TextEntList { Text = "L1", Ent = "e4", });
textents.Add(new TextEntList { Text = "L22", Ent = "e5", });
textents.Add(new TextEntList { Text = "L12", Ent = "e6", });
textents.Add(new TextEntList { Text = "L2", Ent = "e7", });
var query =
from TextEntList x in textents
group x by x.Text into g
select new { g.Key, N = g.Count() };
foreach (var item in query)
{
Console.WriteLine(item);
}
Console.Write("Program finished, press Enter/Return to continue:");
Console.ReadLine();
}
}
如果想要获得的结果：
{ Text = "L1" { Ent = "e1"， Ent = "e4"}}。。。。 要怎么写，绕不弯来。。。
本帖最后由 雪山飞狐_lzh 于 2015-9-30 10:08 编辑
分组的linq......是group by
获取的结果就是你要的 雪山飞狐_lzh 发表于 2015-9-30 09:36 static/image/common/back.gif
分组的linq......是group by
获取的结果就是你要的
是的，知道是group by。
这玩意还不熟，后面只好用循环的笨办法收集了。
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