在C++中使用指针为一个for循环赋值矩阵

#include <iostream>

int main() {
    // 定义矩阵大小
    int rows = 3;
    int columns = 3;

    // 动态分配内存来创建矩阵
    int** matrix = new int*[rows];
    for (int i = 0; i < rows; ++i) {
        matrix[i] = new int[columns];
    }

    // 使用指针为矩阵赋值
    int count = 1;
    for (int i = 0; i < rows; ++i) {
        for (int j = 0; j < columns; ++j) {
            *(matrix[i] + j) = count;
            count++;
        }
    }

    // 打印矩阵
    for (int i = 0; i < rows; ++i) {
        for (int j = 0; j < columns; ++j) {
            std::cout << matrix[i][j] << " ";
        }
        std::cout << std::endl;
    }

    // 释放内存
    for (int i = 0; i < rows; ++i) {
        delete[] matrix[i];
    }
    delete[] matrix;

    return 0;
}