node* del(node *head){
	node *temp;
	while (head!=NULL)
	{
		temp = head;
		head = temp->next;
		temp = nullptr;   ///刪除之前先將指標置空
		delete(temp);
		cout << "刪除成功" << endl;
		display(head);
	}
	return head;
}

for(auto e:v)  //e在v裡依次取資料，為空時跳出迴圈

相關推薦