Leetcode-48.旋转图像（Python）

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题目链接

class Solution:
    def rotate(self, matrix: List[List[int]]) -> None:
        """
        Do not return anything, modify matrix in-place instead.
        """
        n=len(matrix)
        for i in range(n):#对角线折叠
            for j in range(i+1,n):
                matrix[i][j],matrix[j][i]=matrix[j][i],matrix[i][j]
        for i in range(n):#上下折叠
            for j in range(n//2):
                matrix[i][j],matrix[i][n-1-j]=matrix[i][n-1-j],matrix[i][j]