struct List1 *reverse(List1 *h) //h为链表的头指针
{
struct List1 *p,*v1,*v2;
v2=h;
v1=NULL;
while( v2!=NULL ){
p=v2->pNext;
v2->pNext=v1;
v1=v2;
v2=p;
}
return v1;
}
