Tuple<int,int> t= new Tuple<int,int>(1,6); Console.WriteLine(t.Item1);//1 Console.WriteLine(t.Item2);//6
C#7 可以使用圆括号声明一个元组:
(string s,int t) tuple = ("string",5); Console.WriteLine(tuple.t);//5
(string s,int t) tuple = ("string",5); Console.WriteLine($"{tuple.s},{tuple.t}");
原文：https://www.cnblogs.com/mlh1421/p/10875951.html