学步园

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;