c++中3d数组堆的分配

#include <iostream>

int main() {
    int x = 3;  // 第一维大小
    int y = 4;  // 第二维大小
    int z = 5;  // 第三维大小

    // 分配内存空间
    int*** arr = new int**[x];
    for (int i = 0; i < x; ++i) {
        arr[i] = new int*[y];
        for (int j = 0; j < y; ++j) {
            arr[i][j] = new int[z];
        }
    }

    // 初始化数组
    int count = 0;
    for (int i = 0; i < x; ++i) {
        for (int j = 0; j < y; ++j) {
            for (int k = 0; k < z; ++k) {
                arr[i][j][k] = count++;
            }
        }
    }

    // 访问数组元素
    for (int i = 0; i < x; ++i) {
        for (int j = 0; j < y; ++j) {
            for (int k = 0; k < z; ++k) {
                std::cout << arr[i][j][k] << " ";
            }
            std::cout << std::endl;
        }
        std::cout << std::endl;
    }

    // 释放内存空间
    for (int i = 0; i < x; ++i) {
        for (int j = 0; j < y; ++j) {
            delete[] arr[i][j];
        }
        delete[] arr[i];
    }
    delete[] arr;

    return 0;
}