题目网址:https://leetcode.cn/leetbook/read/top-interview-questions-easy/xnhhkv/
public class Solution {
public void Rotate(int[][] matrix) {
int len = matrix.GetLength(0)-1;
for(int i=0;i< matrix.Length; i++)
{
for(int j=0;j< matrix[0].Length; j++)
{
if ((i + j) < len)
{
int k = matrix[i][j];
matrix[i][j] = matrix[len-j][len-i];
matrix[len-j][len-i] = k;
}
}
}
for(int i = 0; i < matrix.Length/2; i++)
{
for(int j = 0; j < matrix[0].Length; j++)
{
int k = matrix[i][j];
matrix[i][j] = matrix[len-i][j];
matrix[len-i][j] = k;
}
}
}
}