如何呈现一维数组和多维数组

# 创建一维数组
one_dim_array = [1, 2, 3, 4, 5]

# 访问数组元素
print(one_dim_array[2])  # 输出: 3

# 遍历数组
for element in one_dim_array:
    print(element)

# 创建二维数组（矩阵）
two_dim_array = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
]

# 访问数组元素
print(two_dim_array[1][2])  # 输出: 6

# 遍历二维数组
for row in two_dim_array:
    for element in row:
        print(element, end=' ')
    print()

def print_array(array):
    if isinstance(array[0], list):  # 判断是否为多维数组
        for row in array:
            print(' '.join(map(str, row)))
    else:  # 一维数组
        print(' '.join(map(str, array)))

# 测试一维数组
print_array(one_dim_array)

# 测试二维数组
print_array(two_dim_array)

def safe_access(array, *indices):
    try:
        for index in indices:
            array = array[index]
        return array
    except IndexError:
        return None

# 安全访问一维数组
print(safe_access(one_dim_array, 2))  # 输出: 3
print(safe_access(one_dim_array, 5))  # 输出: None

# 安全访问二维数组
print(safe_access(two_dim_array, 1, 2))  # 输出: 6
print(safe_access(two_dim_array, 3, 0))  # 输出: None