旋转图像 leetcode

class Solution:
    def rotate(self, matrix: List[List[int]]) -> None:
        n = len(matrix)
        # Python 这里不能 matrix_new = matrix 或 matrix_new = matrix[:] 因为是引用拷贝
        matrix_new = [[0] * n for _ in range(n)]
        for i in range(n):
            for j in range(n):
                matrix_new[j][n - i - 1] = matrix[i][j]
        # 不能写成 matrix = matrix_new
        matrix[:] = matrix_new

class Solution:
    def rotate(self,matrix:List[List[int]]) -> None:
        n =len(matrix)
        matrix_new =[[0] * n for _ in range(n)]
        for i in range(n):
            for j in range(n):
                matrix_new[j][n-i-1] = matrix[i][j]
        matrix[:] = matrix_new

class Solution:
    def rotate(self, matrix:List[List[int]]
        n = len(matrix)
        matrix_new =[[0] *n for _ in range
        for i in range(n):
            for j in range(n):
                matrix_new[j][n-i-1] = 
        matrix[:] = matrix_new