C++动态创建二维数组,二维数组指针

int **result;int row = 4;int col = 5;result = new int*[row];for (int i=0; i<row; i++){    result[i] = new int[col];}for (int i=0; i<row; i++){    for (int j=0; j<col; j++)    {        result[i][j] = 4;   // 赋值    }}// 下面是释放空间for (int i=0; i<row; i++){    delete[] result[i];}delete[] result;