随机创建一个在列和行中没有重复元素的矩阵

import random

def create_unique_matrix(rows, cols):
    matrix = [[0] * cols for _ in range(rows)]
    nums = list(range(1, rows * cols + 1))
    random.shuffle(nums)
    for i in range(rows):
        for j in range(cols):
            matrix[i][j] = nums[i * cols + j]
    return matrix

# 示例调用
matrix = create_unique_matrix(3, 4)
for row in matrix:
    print(row)