在c ++中创建矩阵的正确方法

#include<iostream>

int main() {
    int matrix[3][3] = {
        {1, 2, 3},
        {4, 5, 6},
        {7, 8, 9}
    };

    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 3; j++) {
            std::cout<< matrix[i][j] << " ";
        }
        std::cout<< std::endl;
    }

    return 0;
}