while(pcurrent->next!=NULL) {
//prev = pcurrent; //错误语句
pcurrent = pcurrent->next;
if(pcurrent->score<min_score)
{
if(pcurrent->next!=NULL) {
prev->next = pcurrent->next;
free(pcurrent);
} else { //链表指针主要是地址的指向
prev->next = NULL;
free(pcurrent);
}
}
else
{
prev = pcurrent;
}
}
这段程序为什么能够运行?我不能接受