class Solution:
def rotate(self, matrix: List[List[int]]) -> None:
"""
Do not return anything, modify matrix in-place instead.
"""
j=i=0
matrix_1=matrix
n=len(matrix)
while i<n:
while j<n:
(matrix_1[i])[j]=(matrix[n-1-j])[i]
j+=1
j=0
i+=1

矩阵不全是方阵,还有
a = [[1,2,3],[4,5,6],[7,8,9]]
A = [[7,4,1],[8,5,2],[9,6,3]]
b = [[1,2,3,4],[5,6,7,8],[9,10,11,12]]
B = [[9,5,1],[10,6,2],[11,7,3],[12,8,4]]
c = [[1,2,3,4],[5,6,7,8],[9,10,11,12],[13,14,15,16]]
C = [[13,9,5,1],[14,10,6,2],[15,11,7,3],[16,12,8,4]]
class Solution:
def rotate(self, matrix):
matrix[:] = list(map(list, zip(*matrix)))
for m in matrix: m[:] = sorted(m,reverse=True)
s = Solution()
s.rotate(a)
print(a,a==A)
s.rotate(b)
print(b,b==B)
s.rotate(c)
print(c,c==C)