程序代码：

void SelectNode(pHuffManTree& pHuffManTreeTemp,int i,int* m,int* n)
{
    *m = GetNode(pHuffManTreeTemp,i);

    *n = GetNode(pHuffManTreeTemp,i);

    int Temp = 0;

    if (*m>*n)
    {
        Temp = *m;
        *m = *n;
        *n = Temp;
    }
}