08 2012 档案
摘要：我这里以用的是list，别的类型都差不多一样。。（测试数据自己添加)第一种List<string> AllList = new List<string>();var q = from p in AllList group p by p into g select new { Key = g.Count(), BranchName = g.Key };foreach (var v in q)Console.WriteLine("--" + v.BranchName.ToString() + "--" + v.Key.ToString
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摘要：DataTable dt = new DataTable(); dt.Columns.Add("A"); dt.Columns.Add("B"); dt.Columns.Add("C"); dt.Rows.Add("a1", "b1", "c1"); dt.Rows.Add("a1", "b2", "c2"); dt.Rows.Add("a2", "b3", "c3&
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