如何去List里面实体某个属性相同的数据public class A{ public string Name { get; set; } public string Age { get; se

private class AAA { public string name { get; set; } public string arg { get; set; } }


List<AAA> aaa = new List<AAA>();
            AAA fff = new AAA();
            fff.name = "张三";
            fff.arg = "12";
            aaa.Add(fff);
            fff = new AAA();
            fff.name = "李四";
            fff.arg = "12";
            aaa.Add(fff);
            fff = new AAA();
            fff.name = "张三";
            fff.arg = "13";
            aaa.Add(fff);
            fff = new AAA();
            fff.name = "王五";
            fff.arg = "13";
            aaa.Add(fff);
            fff = new AAA();
            fff.name = "张三";
            fff.arg = "14";
            aaa.Add(fff);
            var ccc = aaa.Where(aa => aa.name == "张三");
            Console.WriteLine(string.Join(" ", ccc.Select(aa => aa.name + " " + aa.arg).ToArray()));

private class AAA { public string name {