C-2数组，检查其中是否为子数组，并返回索引

def find_subarray(c2_array, target_array):
    for i in range(len(c2_array)):
        for j in range(len(c2_array[i])):
            if c2_array[i][j:j+len(target_array)] == target_array:
                return i, j
    return -1, -1

# 示例用法
c2_array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
target_array = [4, 5, 6]
subarray_index = find_subarray(c2_array, target_array)
print("子数组的索引：", subarray_index)