//任意顶点的入度
void Degree(int *inDegree, LGraph *g, int u){
    int i;
    ENode *p;
    inDegree[u] = 0;
    for(i = 0;i < g->n; ++i){
        for(p = g->a[i]; p ; p = p->nextArc){
            if(p->adjVex == u)
                inDegree[u]++；
        }
    }
}

//任意顶点的出度
void Degree(int *outDegree, LGraph *g, int u){
    int i;
    ENode *p;
    outDegree[u] = 0;
    for(p = g->a[i]; p ; p = p->nextArc){
        outDegree[u]++；
    }
}