查找多维数组中元素的所有“邻居”，环绕边界

def find_neighbors(matrix, row, col):
    neighbors = []
    rows = len(matrix)
    cols = len(matrix[0])

    # 上邻居
    if row > 0:
        neighbors.append(matrix[row - 1][col])
    else:
        neighbors.append(matrix[rows - 1][col])

    # 下邻居
    if row < rows - 1:
        neighbors.append(matrix[row + 1][col])
    else:
        neighbors.append(matrix[0][col])

    # 左邻居
    if col > 0:
        neighbors.append(matrix[row][col - 1])
    else:
        neighbors.append(matrix[row][cols - 1])

    # 右邻居
    if col < cols - 1:
        neighbors.append(matrix[row][col + 1])
    else:
        neighbors.append(matrix[row][0])

    return neighbors

# 示例用法
matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
target_row = 1
target_col = 1
neighbors = find_neighbors(matrix, target_row, target_col)
print(neighbors)