C++类

墨蓝 2022-06-05 02:41 168阅读 0赞

##### SqList.h #####

#include <iostream>
    #include <sstream>
    #include <fstream>
    #include <cstring>
    #include <cmath>
    #include <stdlib.h>
    
    #define MAXSIZE 16
    
    using namespace std;
    
    typedef struct
    {
        string key;
        string name;
        int age;
    } Node;
    
    class SQList
    {
    private:
        struct SeqList
        {
            Node data[MAXSIZE];
            int length;
        } *list;
    public:
        SQList();
        ~SQList();
        void initList();
        Node createElement(string key, string name, int age);
        bool insert(int i, Node node);
        void print();
    };

##### public.cpp #####

#include "SqList.h"
    #include <iostream>
    
    using namespace std;
    
    /* class method */
    SQList::SQList()
    {
        initList();
    }
    
    SQList::~SQList()
    {
        cout << "Destructured." << endl;
    }
    
    void SQList::initList()
    {
        list = (SeqList *)malloc(sizeof(SeqList));
        list->length = 0;
    }
    
    Node SQList::createElement(string key, string name, int age)
    {
        Node node;
        node.key = key;
        node.name = name;
        node.age = age;
    
        return node;
    }
    
    bool SQList::insert(int i, Node node)
    {
        if (list->length >= MAXSIZE)
        {
            cout << "SQList is full, can not insert new element." << endl;
            return false;
        }
    
        if (i < 1 || i > list->length + 1)
        {
            cout << "Serial no is error!" << endl;
            return false;
        }
    
        int n;
        for (n = list->length; n > i; n--)
        {
            list->data[n] = list->data[n - 1];
        }
        list->data[n] = node;
        list->length += 1;
    
        return true;
    }
    
    void SQList::print()
    {
        for (int i = 0; i < list->length; i++)
        {
            cout << list->data[i].key << " : " << list->data[i].name << " - " << list->data[i].age << endl;
        }
        cout << "Print finished." << endl;
    }

##### main.cpp #####

#include "SqList.h"
    #include <iostream>
    
    using namespace std;
    
    int main()
    {
        SQList sqList;
    
        Node node = sqList.createElement("jangz", "Jang Zhang", 23);
        bool result = sqList.insert(1, node);
        cout << "Insert result : " << result << endl;
    
        sqList.print();
    
        return 0;
    }

##### result: #####

![这里写图片描述][SouthEast]

[SouthEast]: /images/20220605/b4953aba0d6b4782a4263ef675067a7a.png