我试图在C ++中创建一个动态队列,并且我编写了大部分代码,但是它不起作用,有人可以友好地浏览它并告诉我出了什么问题吗? :)
还请评论我希望改进的编码风格。

我编写了一个主要函数来测试程序,这应该是预期的结果:

data1 = 1

data1 = 1 data2 = 2

1 2 3 4 5 6

删除:1删除:2删除:3

这是我的代码:

#include <iostream>
template<typename T>
class Queue
{
    struct Node
    {
        T data;
        Node* next;
    };
    Node* head;
    Node* tail;
    int qsize;

public:
    Queue()
    {
        head = NULL;
        tail = NULL;
        qsize = 0;
    }

    bool empty()
    {
        if(qsize = 0){return true;}
        else         {return false;}
    }

    void put(const T& data)
    {
        Node *newNode = new Node;
        if(qsize)
        {
            tail->next = newNode;
            newNode->data = data;
            newNode->next = NULL;
            tail = newNode;
        }
        else
        {
            head = tail = newNode;
            newNode->data = data;
            newNode->next = NULL;
        }
        qsize++;
    }

    T get()
    {
        T val;
        Node *temp;

        if(empty())
        {
            std::cout << "queue is empty" << std::endl;
        }
        else
        {
            val = head->data;
            temp = head;
            head = head->next;
            delete temp;

            qsize--;
            return val;
        }
    }

    void destroyQueue()
    {
        while(!empty())
        {
            std::cout<<"DEL:";
            get();
        }
    }

    ~Queue()
    {
        destroyQueue();
    }
};



int main()
{
    int data1,data2;
    Queue<int>* q = new Queue<int>();
    q->put(1);
    data1 = q->get();
    std::cout << " data1=" << data1 << std::endl;
    q->put(1);
    q->put(2);
    data1 = q->get();
    data2 = q->get();
    std::cout << " data1=" << data1
              << " data2=" << data2 << std::endl;
    q->put(1);
    q->put(2);
    q->put(3);
    q->put(4);
    q->put(5);
    q->put(6);
    while (!q->empty()) std::cout << " " << q->get();
    std::cout << std::endl;
    q->put(1);
    q->put(2);
    q->put(3);
    delete q;
}

最佳答案

if(qsize = 0)应该是if(qsize == 0)-不要分配,比较!

关于c++ - 在C++中创建动态队列,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/20938002/

10-15 13:29