C#函数多返回值的方法

 1 class Demo
 2     {
 3         public void Run()
 4         {
 5             var num = Exec(5, 6);
 6             Console.WriteLine(num.Item1); //第一个返回值
 7             Console.WriteLine(num.Item2); //第二个返回值
 8 
 9             Console.WriteLine();
10             var num2 = Exec2(5, 6);
11             Console.WriteLine(num2.Item1); //第一个返回值
12             Console.WriteLine(num2.Item2); //第二个返回值
13             Console.WriteLine(num2.Item3); //第三个返回值
14         }
15 
16         public Tuple<int, int> Exec(int a, int b)
17         {
18             Tuple<int, int> tup = new Tuple<int, int>(a + b, a * b);
19             return tup;
20         }
21 
22         public Tuple<int, int, int> Exec2(int a, int b)
23         {
24             Tuple<int, int, int> tup = new Tuple<int, int,int>(a + b, a * b, a - b);
25             return tup;
26         }
27 
28     }