int[] a = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
var ram = new Random();
var index = ram.Next(a.Length);
var result = a[index];

------解决方案--------------------
探讨

C# code

int[] a = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
var ram = new Random();
var index = ram.Next(a.Length);
var result = a[index];


------解决方案--------------------
int [] arr={1,2,3,4,5,6,7};
Random r=new Random();
int i=arr[r.Next(arr.Length)];


------解决方案--------------------
oh、、、shit、、、看样子 只有写个更少的了

int a = new int[]{1，2，3，4,5,6,7,8,9,10};
int b = a[new Random().Next(a.Length)];

- -!、、直接写的 参照楼上的 应该没啥问题、、、要错了 你就怪楼上吧！、、