题目描述

下面代码中创建链表时的循环中使用了new，如何设置对应的delete释放内存？
PS.代码中自己的delete位置好像不对，也搜到过说小程序delete不delete不影响这种说法。求教大神！

相关代码

//链表测试
#include <iostream>
#include <stdlib.h> 

struct Node {
public:
    int data;
    Node *pNext;
};

//
int main()
{
    //头结点
    Node *head;
    head = new Node;
    head->data = 0;
    head->pNext = NULL;
    //创建链表
    Node *pnew, *ptemp;
    ptemp = head;
    int n = 0;
    std::cout << "请输入需要创建单向链表的结点个数：";
    std::cin >> n;
    int i = n;
    while (n > 0) {
        n--;
        pnew = new Node;
        std::cout << "输入第" << i - n << "个结点值：";
        std::cin >> pnew->data;
        pnew->pNext = NULL;
        ptemp->pNext = pnew; 
        ptemp = pnew;
    }
    //打印链表 
    std::cout << "打印链表值如下：";
    Node *p = head->pNext; 
    while (p != NULL) {
        std::cout << p->data << " ";
        p = p->pNext;
    }
    std::cout << std::endl;
    delete head;
    delete pnew;
    return 0; 
}