Yanghui triangle with space

//杨辉三角
Console.WriteLine("请输入行数");
int yangHuiLine = Int32.Parse(Console.ReadLine());
int[,] yangHui = new int[yangHuiLine, yangHuiLine];

for (int i = 0; i < yangHuiLine; i++)
{
    yangHui[i, 0] = 1;
    yangHui[i, i] = 1;
    if (i > 1)
    {
        for (int j = 1; j < i; j++)
        {
            yangHui[i, j] = yangHui[i - 1, j - 1] + yangHui[i - 1, j];
        }
    }
}

for (int i = 0; i < yangHuiLine; i++)
{
    int kongge = 10;//定义空格数量
    Console.Write("第" + (i + 1).ToString() + "行：");
    for (int k = yangHuiLine - i - 2; k >= 0; k--)
    {
        Console.Write(new string(' ',kongge/2));
    }

    for (int j = 0; j <= i; j++)
    {
        Console.Write(yangHui[i,j].ToString().PadLeft(kongge));//左边补全空格
    }

    Console.WriteLine();
}