如何将多维int数组转换为字符串列表？

Question

MultiDimensional 2D int array to string List

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I would like to convert my array2D:

int[,] array2D = new int[,] { { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 } };

to a List:

List<String> numbers = new List<string>(array2d.ToString());

Answer 1

您可以使用Enumerable.Cast展平多维数组

List<String> number = array2D.Cast<int>().Select(i => i.ToString()).ToList();

Answer 2

You can convert 2d array into jagged array and then convert it to List.

int[,] arr = new int[,] { { 1, 2, 3 }, { 4, 5, 6 } };

int[][] jagged = new int[arr.GetLength(0)][];

for (int i = 0; i < arr.GetLength(0); i++)
{
jagged[i] = new int[arr.GetLength(1)];
for (int j = 0; j < arr.GetLength(1); j++)
{
    jagged[i][j] = arr[i, j];
}
}

List<int[]> list = jagged.ToList();