C#数组移动项(非ArrayList/Generic List)

int[] array = { 1, 2, 3, 4, 5 };
int indexToMove = 1;
int newIndex = 3;

Array.Copy(array, indexToMove, array, newIndex, 1);

int[] array = { 1, 2, 3, 4, 5 };
int indexToMove = 1;
int newIndex = 3;

Buffer.BlockCopy(array, indexToMove * sizeof(int), array, newIndex * sizeof(int), sizeof(int));

int[] array = { 1, 2, 3, 4, 5 };
int indexToMove = 1;
int newIndex = 3;

for (int i = indexToMove; i < newIndex; i++)
{
    array[i] = array[i + 1];
}