试试这个:

int i = 0;
foreach(var number in integerList)
{
    integerArray[i % 500, (int)(i / 500)] = number;
    i++;
}

如果你想让数字先在列中递增，只需将数组内部的 mod 和 div 操作转置即可.

If you want to the number to increment through the column first, just transpose the mod and div operations inside the array.