C++类再写一遍学生查分系统

学生类的.H文件: 学生属性声明

#ifndef __STUDENT_H_#define __STUDENT_H_#include<string>using namespace std;class Student{public:    string name, ID;    int score[5];    Student *next;};#endif

链表类的.h文件： 通过操作学生对象实现链表的创建，增加，查找，修改，排序，退出。面向学生对象编程

#ifndef __LIST_H_#define __LIST_H#include<string>#include"Student.h"class List{public:    List();                             //生成    void print_list();                  //打印    void add_list_node();               //增    void remove_list_node(Student *p);  //删    void seek_list_node();              //查    void revise_list_node(Student *p);  //改    void list_sort();                   //排序    void  loading();                    //登陆    void quit();                        //退出private:    Student *head,*stu[5];    string        acount = "1",        password = "1",        input_a,        input_p;    int     count = 0,    chance = 5;};#endif 

链表类的.cpp文件:将操作链表的方法实现

# include "List.h"#include<iostream>#include<windows.h>#include <iomanip>using namespace std;stringname[] = { "张三", "李四", "王五", "赵六", "田七" },ID[] = { "1001", "1002", "1003", "1004", "1005" },subject[] = { "姓名：", "学号：", "语文：", "数学：", "英语：", "理综：","总分：" };//链表初始化List::List(){    int i;          for (i = 0; i < 5; i++)    {        this->stu[i] = new Student;        this->stu[i]->name = name[i];        this->stu[i]->ID = ID[i];        this->stu[i]->score[0] = rand() % 100 + 51;        this->stu[i]->score[1] = rand() % 100 + 51;        this->stu[i]->score[2] = rand() % 100 + 51;        this->stu[i]->score[3] = rand() % 250 + 51;        this->stu[i]->score[4] = this->stu[i]->score[0] + this->stu[i]->score[1] + this->stu[i]->score[2] + this->stu[i]->score[3];        if (i>0)        {            this->stu[i - 1]->next = this->stu[i];            this->stu[i]->next = NULL;        }        (this->count)++;    }    this->head = this->stu[0];    this->print_list();}//登陆void List::loading(){    while (this->count > 0)    {        cout << "账号： ";        cin >> this->input_a;        cout << "密码： ";        cin >> this->input_p;        if (this->input_a != this->acount || this->input_p != this->password)        {            (this->chance)--;            if (this->chance == 0)            {                cout << "您已连续5次输错！！！" << endl;                this->quit();                break;            }            cout << "您输入的账号或密码有误，请重新输入！ 剩余次数 ：" << this->count << endl;        }        else        {            system("color 5e");            cout << "\t\t登陆成功，欢迎使用！！！" << endl;            break;        }    }}//增加void List::add_list_node(){        Student *temp, *p = new Student;        int i;        for(i = 0; i < 6; i++)        {            cout << subject[i];            if (i == 0)            {                cin >> p->name;            }            else if (i == 1)            {                cin >> p->ID;            }            else{                cin >> p->score[i-2];            }            getchar();        }        p->score[4] = p->score[0] + p->score[1] + p->score[2] + p->score[3];        if (this->head != NULL)        {            temp = this->head;            this->head = p;            p->next = temp;        }        else{            head = p;            p->next = NULL;        }        this->count++;        cout << "添加成功" << endl;        this->print_list();}//查找void List::seek_list_node(){    Student *temp = this->head;    string input;    int choose;    cout << "\n\n请输入您要查找的学生姓名或学号：";    cin >> input; getchar();    while (temp != NULL)    {        if (temp->ID == input || temp->name == input)        {            cout << "\n\t\t\t查找到学生信息如下：\n" << endl;            printf("\n姓名\t学号\t语文\t数学\t英语\t理综\t总分\n");               cout << setw(8) << temp->name << setw(8) << temp->ID << setw(8) << temp->score[0] << setw(8) << temp->score[1] << setw(8) << temp->score[2] << setw(8) << temp->score[3] << setw(8) << temp->score[4] << endl;            cout<<"\n\t1，修改 2，删除\n";            cin >> choose;getchar();            (choose - 1) ? remove_list_node(temp) : revise_list_node(temp);            return;        }        temp = temp->next;    }    cout<<"\n找不到"<<endl;}//删除void List::remove_list_node(Student *p){    Student *p1, *p2;    if (!count)    {        printf("\n当前人数为0，无法进行删除,修改等操作！");        return;    }    if (this->head == p)    {        p1 = this->head;        this->head = this->head->next;        delete(p1);    }    else    {        p1 = this->head;        while (this->head != NULL)        {            if (head->next == p)            {                p2 = this->head->next->next;                delete(this->head->next);                this->head->next = p2;                break;            }            this->head = this->head->next;        }        this->head = p1;    }    this->count--;    cout << "删除成功" << endl;    this->print_list();}//修改void List::revise_list_node(Student *p){    int choose;    P1:    cout << "\n请选择修改项：1,姓名\t2,学号\t3,语文\t4,数学\t5，英语\t6，理综" << endl;    cin >> choose; getchar();    switch (choose)    {        cout << subject[choose - 1];    case 1:         cin >> p->name;        break;    case 2:        cin >> p->ID;        break;    case 3:    case 4:    case 5:    case 6:        cin >> p->score[choose - 3];        break;    default:        cout << "输入有误，请重新输入！！" << endl;        goto P1;    }    p->score[4] = p->score[0] + p->score[1] + p->score[2] + p->score[3];    cout << "修改成功！！" << endl;    this->print_list();}//排序void List::list_sort(){    Student *temp = new Student, *temp1, *temp2, *start, *ps = this->head;    int choose,n1,n2;    P1:    cout << "1,语文排名\t2,数学排名\t3,英语排名\t4,理综排名\t5，总分排名" << endl;    cin >> choose; getchar();    while (head != NULL)    {        start = head;        while (start->next != NULL)        {            if (choose > 5 || choose < 1)            {                cout << "输入有误，请重新输入！！" << endl;                goto P1;            }            else            {                n1 = head->score[choose - 1];                n2 = start->next->score[choose - 1];            }            if (n1 < n2)            {                temp1 = head->next;                temp2 = start->next->next;  //保存指向                *temp = *(start->next);                *(start->next) = *(this->head);   //交换对象值                *(this->head) = *temp;                this->head->next = temp1;                start->next->next = temp2;   //恢复指向            }            start = start->next;        }        this->head = this->head->next;    }    this->head = ps;    this->print_list();}//打印void List::print_list(){    Student *pp = this->head;    printf("\n姓名\t学号\t语文\t数学\t英语\t理综\t总分\n");    while (pp != NULL)    {        cout.setf(ios::left); //左对齐        cout << setw(8) << pp->name << setw(8) << pp->ID << setw(8) << pp->score[0] << setw(8) << pp->score[1] << setw(8) << pp->score[2] << setw(8) << pp->score[3] << setw(8) << pp->score[4] << endl;        pp = pp->next;    }}//退出void List::quit(){    system("color 4e");    Student *p = this->head;        while (head != NULL)        {            p = head;            head = head->next;            delete(p);        }        system("color 4c");        printf("\n系统将于3秒后自动退出\n");        Sleep(3000);}

主函数：链表操作界面

#include "List.h"#include<iostream>using namespace std;List *list = NULL;void main(){    int choose1;    list = new List;    list->loading();MENU:    cout << "\n\t\t主菜单：1,显示全部\t2,添加\t3,查找\t4,排名\t5,退出\n"<<endl;    cin >> choose1; getchar();    switch (choose1)    {    case 1:        list->print_list();  //显示全部        break;    case 2:        list->add_list_node();  //添加        break;    case 3:        list->seek_list_node();  //查找        break;    case 4:        list->list_sort();   //排名        break;    case 5:        list->quit();   //退出        break;    default:        cout << "您的输入有误，请重新选择！！" << endl;        goto MENU;    }    cout << "按任意键返回主菜单" << endl;    getchar();    goto MENU;}