[C#] 使用Tuple類別，讓方法可回傳多個結果

new Tuple<T1, T2, T3, T4, T5, T6, T7, T8>(T1, T2, T3, T4, T5, T6, T7, T8)：建立1至8個項目的Tuple物件。

Tuple.Create<T1, T2, T3, T4, T5, T6, T7, T8>(T1, T2, T3, T4, T5, T6, T7, T8)：建立1至8個項目的Tuple物件。

Tuple.Item1、Tuple.Item2.....Tuple.Item8：取得Tuple物件之項目內容。

public static void Main(string[] args)
{
    Tuple obj = Cale(5, 6);
    Console.WriteLine(obj.Item1);
    Console.WriteLine(obj.Item2);
    Console.WriteLine(obj.Item3);
    Console.WriteLine(obj.Item4);
    Console.WriteLine(obj.Item5);
    Console.ReadKey();
}

//最多可傳遞8個結果
public static Tuple<int, int, int, double, string> Cale(int x, int y)
{
    int add = x + y;
    int sub = x - y;
    int multip = x * y;
    double division = Convert.ToDouble(x) / Convert.ToDouble(y);
    string show = string.Format("x={0:f2}, y={1:f2}", x, y);

    return Tuple.Create<int, int, int, double, string>(add, sub, multip, division, show);
}

//傳遞超過8個結果之寫法
public static Tuple<int, int, int, int, int, int, int, Tuple<int, int>> Cale()
{
    return new Tuple<int, int, int, int, int, int, int, Tuple<int, int>>(1, 2, 3, 4, 5, 6, 7, new Tuple(8, 9));
}