如何用第一和第二维不相等的其他两个3d数组中的内容填充3d数组

import numpy as np

# 创建一个空的3D数组
arr = np.empty((m, n, p))

# 定义两个不同维度的3D数组
arr1 = np.array([...])  # 定义arr1的内容
arr2 = np.array([...])  # 定义arr2的内容

# 遍历arr的每个元素并填充
for i in range(arr.shape[0]):
    for j in range(arr.shape[1]):
        for k in range(arr.shape[2]):
            if i < arr1.shape[0] and j < arr1.shape[1] and k < arr1.shape[2]:
                arr[i, j, k] = arr1[i, j, k]
            elif i < arr2.shape[0] and j < arr2.shape[1] and k < arr2.shape[2]:
                arr[i, j, k] = arr2[i, j, k]
            else:
                arr[i, j, k] = 0  # 根据需求填充其他值

# 打印填充后的3D数组
print(arr)