C++学生管理系统

其他 2018-06-25 15:53:42 阅读次数: 2

在之前的增强版上面改动了一下，难度不大，代码很low，大牛勿喷，准备再改进一下。

#pragma once
#ifndef Color_H
#define Color_H

void color(const unsigned short color1)
{
    if (color1 >= 0 && color1 <= 15)
        SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), color1);
    else
        SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), 15);
}

#endif
Color.h 
#pragma once

#ifndef AddStudent_H
#define AddStudent_H

class AddStudent
{
private:
    char Character_A[2];
    char Character_a[5];
    char SID[5];
    char Character_B[2];
    char Character_b[6];
    char Name[10];
    char Character_C[2];
    char Character_c[5];
    char Age[5];
    char Character_D[2];
    char Character_d[8];
    char Gender[10];
    char Character_E[2];
    char Character_e[15];
    char EntranxeScore[10];
    char Character_F[2];
public:
    AddStudent();
    ~AddStudent();
public:
    void MenuBar();//菜单函数
    void QueryFunctionMenu();//查询功能菜单
    void  MoreFunction();//更多功能函数

    void Sort_Num();//按学号排序函数
    void TotalScoreRanking();//按总成绩排序函数

    void AddStudentInformation();//添加学生信息函数
    void DeleteStudentInformation();//删除学生信息函数
    void ChangeStudentInformation();//更改学生信息函数
    void QueryStudentInformation();//查询学生信息函数
    void ShowStudentInformation();//显示所有学生信息函数
    void AdditionalFunction();//附加功能选项函数

    void QueryStudentID();//通过学号查询函数
    void QueryStudentName();//通过学生姓名查询函数
    void QueryStudentAge();//通过学生年龄查询函数
    void QueryStudentEntranxeScore();//通过学生分数查询函数

    void AddStudent_txt();//插入列表函数

    void checkName(size_t m, char Name[]);//检查姓名函数
    void checkSID(size_t j);//检查学号大小函数
    void checkSID_1(size_t m);//检查学号是否重复函数
    void checkGender(size_t i, char a[]);//检查性别函数
    void checkAge(size_t m);//检查年龄函数
    void checkEntranxeScore(size_t k);//检查分数函数
    void getName(char name[]);//检查姓名函数
    int JudgeDate(size_t n);//检查文本数据

    void EnterStudentInformation(size_t i);//输入学生信息
    void ExchangeFunction(size_t m, size_t n);////交换数据结构中两个统一结构的不同下标的结构值
};
#endif
AddStudent.h 
#include <iostream>
#include <cstdlib>
#include <cmath>
#include <Windows.h>
#include <cstddef>
#include "AddStudent.h"
#include "Color.h"
#define N 750

#pragma warning(disable : 4996)
#pragma warning(disable : 4477)

using namespace std;

int mcount = 0;

char LineFeed = '\n';

AddStudent AddStudent_m[N], Open;

AddStudent::AddStudent() {}

AddStudent::~AddStudent() {}

int AddStudent::JudgeDate(size_t n) {
    if(AddStudent_m[n].Age[0] == '\0'){
        return 1;
    }
    return 0;
}

void AddStudent::checkSID(size_t j)//检查学号大小函数 
{
    int num_int;
    num_int = atoi(AddStudent_m[j].SID);
    while (num_int <= 0 || num_int > N)
    {
        color(4);
        cout << "warning：SID的取值范围在0~N，请重新输入.\n";
        color(15);
        cout << "请输入学生的学号：";
        cin >> AddStudent_m[j].SID;
        num_int = atoi(AddStudent_m[j].SID);
        if (num_int > 0 && num_int <= N)
        {
            break;
        }
    }
}

void AddStudent::checkSID_1(size_t m)//检查学号是否重复函数 
{
    int k, num_int, num1_int;
    num1_int = atoi(AddStudent_m[m].SID);
loop:    for (k = 0; k < mcount; k++)
{
    if (k == m)
    {
        continue;
    }
    num_int = atoi(AddStudent_m[k].SID);
    while (num_int == num1_int)
    {
        color(4);
        cout << "学号重复，请重新输入.\n";
        color(15);
        cout << "请输入学号：";
        cin >> AddStudent_m[m].SID;
        num_int = atoi(AddStudent_m[k].SID);
        goto loop;
    }
}
}
//因为选择输入的方式是ab+，从新从i=0开始输入进去，所以想要通过

void AddStudent::checkName(size_t m, char Name[])//检查姓名函数 
{
    while (strlen(Name) > 10)
    {
        color(4);
        cout << "Warning:Name的字数最多为5，请重新输入.\n";
        color(15);
        cout << "请输入学生的姓名：";
        cin >> AddStudent_m[m].Name;
    }
}

void AddStudent::checkGender(size_t i, char a[])//检查性别函数 
{
    while (strcmp(a, "男") && strcmp(a, "女"))
    {
        color(4);
        cout << "Warning：Gender只能是男或女,请重新输入.\n";
        color(15);
        cout << "请输入学生的性别：";
        cin >> AddStudent_m[i].Gender;
    }
}

void AddStudent::checkAge(size_t m)//检查年龄函数 
{
    int num_int;
    num_int = atoi(AddStudent_m[m].Age);
    while (num_int < 0 || num_int>122)
    {
        color(4);
        cout << "Warning：Age的取值范围在0~122，请重新输入，严肃对待！\n";
        color(15);
        cout << "请输入学生的年龄：";
        cin >> AddStudent_m[m].Age;
        num_int = atoi(AddStudent_m[m].Age);//重新赋值变量，检测退出条件
    }
}

void AddStudent::checkEntranxeScore(size_t k)
{
    double num_double;
    num_double = atof(AddStudent_m[k].EntranxeScore);
    while (num_double < 0 || num_double>750)
    {
        color(4);
        cout << "Warning:EntranxeScore的取值范围在0~750，请重新输入.\n";
        color(15);
        cout << "请输入学生的分数：";
        cin >> AddStudent_m[k].EntranxeScore;
        num_double = atof(AddStudent_m[k].EntranxeScore); //重新赋值变量，检测退出条件
    }
}

void AddStudent::getName(char name[]) {
    while (1) {
        cout << "请输入学生的姓名：";
        fflush(stdin);
        cin >> name;
        if (strlen(name) < 10) {
            break;
        }
    }
}

void AddStudent::MenuBar()
{
    system("date /t");
    system("TIME /t\n");
    cout << "            **********欢迎使用学生信息管理系统(当前有" << mcount << "人)********\n";
    cout << "            *\t\t  (1)添加学生信息  \t\t\t*\n";
    cout << "            *\t\t  (2)删除学生信息  \t\t\t*\n";
    cout << "            *\t\t  (3)更改学生信息\t\t\t*\n";
    cout << "            *\t\t  (4)查询学生信息\t\t\t*\n";
    cout << "            *\t\t  (5)显示所有学生信息\t\t\t*\n";
    cout << "            *\t\t  (6)附加功能选项  \t\t\t*\n";
    cout << "            *\t\t  (0)退出学生系统  \t\t\t*\n";
    cout << "            *\t\t\t\t\t  作者:liu\t*\n";
    cout << "            *****************************************************\n";
}

void AddStudent::QueryFunctionMenu()
{
    system("cls");
    system("date /t");
    system("TIME /t\n");
    printf("            ***********查询学生信息（当前有%d人）*****************\n", mcount);
    printf("            *\t\t(1)通过学生学号查询  \t\t\t*\n");
    printf("\n");
    printf("            *\t\t(2)通过学生姓名查询  \t\t\t*\n");
    printf("\n");
    printf("            *\t\t(3)通过学生年龄查询  \t\t\t*\n");
    printf("\n");
    printf("            *\t\t(4)通过学生分数查询  \t\t\t*\n");
    printf("            *****************************************************\n");
}

void AddStudent::MoreFunction()
{
    system("cls");
    cout << "            *******************附加功能*************\n";
    cout << "\t    *\t\t\t\t\t   *\n";
    cout << "            *\t\t(1)按学号进行整理  \t   *\n";
    cout << "\t    *\t\t\t\t\t   *\n";
    cout << "            *\t\t(2)按总分进行整理  \t   *\n";
    cout << "\t    *\t\t\t\t\t   *\n";
    color(3);
    cout << "\t    *\t待开发... ...                      *\n";
    color(15);
    cout << "\t    ****************************************\n";
}

void AddStudent::EnterStudentInformation(size_t i)
{
    cout << "请输入学生的学号：";
    cin >> AddStudent_m[i].SID;
    Open.checkSID(i);
    Open.checkSID_1(i);
    color(8);
    cout << ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n";
    color(15);
    cout << "请输入学生的名字:";
    cin >> AddStudent_m[i].Name;
    Open.checkName(i, AddStudent_m[i].Name);
    color(8);
    cout << ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n";
    color(15);
    cout << "请输入学生的年龄：";
    cin >> AddStudent_m[i].Age;
    Open.checkAge(i);
    color(8);
    cout << ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n";
    color(15);
    cout << "请输入学生的性别：";
    cin >> AddStudent_m[i].Gender;
    Open.checkGender(i, AddStudent_m[i].Gender);
    color(8);
    cout << ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n";
    color(15);
    cout << "请输入学生的总成绩：";
    cin >> AddStudent_m[i].EntranxeScore;
    Open.checkEntranxeScore(i);
    color(8);
    printf(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
    color(15);
}

void AddStudent::AddStudentInformation()//添加学生信息函数 
{
    FILE *fp;
    int n, m = mcount;
    if ((fp = fopen("D:\\test_1.txt", "ab+")) == NULL)//检测文本是否正常打开 
    {
        color(4);
        cout << "Can't open the file!";
        color(15);
        system("PAUSE");
        exit(1);
    }
    cout << "请输入您要添加的学生信息人数：";
    cin >> n;

    for (int i = mcount; i < n + m; i++)
    {
        cout << "请输入No." << i + 1 << "的信息.\n";
        Open.EnterStudentInformation(i - m);//录入学生信息 
        mcount++;
    }
    fwrite(AddStudent_m, sizeof(class AddStudent), n, fp);
    rewind(fp);
    color(2);
    cout << "添加成功！\n";
    cout << "学生信息目录已更新.\n";
    fread(AddStudent_m, sizeof(class AddStudent), mcount, fp);//读取学生信息 
    color(15);
    cout << "___________________________________________________\n";
    cout << "| 学号 |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
    for (int i = 0; i < mcount; i++)//打印更新的学生信息 
    {
        if (AddStudent_m[i].SID > 0)
            cout << "   " << AddStudent_m[i].SID << "      " << AddStudent_m[i].Name << "      " << AddStudent_m[i].Age << "       " << AddStudent_m[i].Gender << "\t      " << AddStudent_m[i].EntranxeScore << endl;
    }
    cout << "|-------------------------------------------------|\n";
    fclose(fp);
    cout << "按任意键返回主菜单... ....\n";
    system("PAUSE");
}

void AddStudent::DeleteStudentInformation()//删除学生信息 
{
    FILE *fp;
    int m, j = 0, num_int;
    if ((fp = fopen("D:\\test_1.txt", "wb+")) == NULL)
    {
        color(4);
        cout << "Can't open the file!\n";
        color(15);
        system("PAUSE");
        exit(1);
    }
    if (mcount == 0)
    {
        color(4);
        cout << "The file is NULL!!!\n";
        color(15);
        return;
    }
    cout << "请输入你要删除的学生的学号：";
    cin >> m;
    fread(AddStudent_m, sizeof(class AddStudent), mcount, fp);
    for (int k = 0; k < mcount; k++)
    {
        num_int = atoi(AddStudent_m[k].SID);
        if (num_int == m)
        {
            cout << "_____________________________________________________\n";
            cout << "|  学号  |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
            //    printf("   %.2d      %-6s      %-3d      %-3s  \t%5.2lf     \n", AddStudent_m[k].SID, AddStudent_m[k].Name, AddStudent_m[k].Age, AddStudent_m[k].Gender, AddStudent_m[k].EntranxeScore);
            cout << "   " << AddStudent_m[k].SID << "       " << AddStudent_m[k].Name << "      " << AddStudent_m[k].Age << "       " << AddStudent_m[k].Gender << "\t    " << AddStudent_m[k].EntranxeScore << endl;
            cout << "|---------------------------------------------------|\n";
            for (int i = k; i < mcount - 1; i++)//将要删除的数后面的函数往前进一格，占去要删除的部分 
            {
                strcpy(AddStudent_m[i].SID, AddStudent_m[i + 1].SID);
                strcpy(AddStudent_m[i].Name, AddStudent_m[i + 1].Name);
                strcpy(AddStudent_m[i].Age, AddStudent_m[i + 1].Age);
                strcpy(AddStudent_m[i].Gender, AddStudent_m[i + 1].Gender);
                strcpy(AddStudent_m[i].EntranxeScore, AddStudent_m[i + 1].EntranxeScore);
            }
            mcount--;
            fwrite(AddStudent_m, sizeof(class AddStudent), mcount, fp);
            rewind(fp);//使指针回到开头 
            fclose(fp);
            color(2);
            cout << "删除成功！按任意键继续... ...\n";
            color(15);
            j++;
        }
    }
    if (j == 0)
    {
        color(4);
        cout << "查无此人！\n";
        color(15);
    }
    system("PAUSE");
}

void AddStudent::ChangeStudentInformation()//更改学生信息
{
    FILE *fp;
    int m, k, j = 0, num_int;
    if ((fp = fopen("D:\\test_1.txt", "rb+")) == NULL)
    {
        cout << "Can't open the file!\n";
        system("PAUSE");
        exit(1);
    }
    if (mcount == 0)
    {
        color(4);
        cout << "The file is NULL!!!\n";
        color(15);
        return;
    }
    cout << "请输入你要更改的学生的学号：";
    cin >> m;
    fread(AddStudent_m, sizeof(class AddStudent), mcount, fp);
    for (k = 0; k < mcount; k++)
    {
        num_int = atoi(AddStudent_m[k].SID);
        if (num_int == m)
        {
            cout << "_____________________________________________________\n";
            cout << "|  学号  |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
            cout << "   " << AddStudent_m[k].SID << "       " << AddStudent_m[k].Name << "      " << AddStudent_m[k].Age << "       " << AddStudent_m[k].Gender << "\t    " << AddStudent_m[k].EntranxeScore << endl;
            cout << "|---------------------------------------------------|\n";
            cout << "请输入你要修改的内容：\n";
            EnterStudentInformation(k);
            rewind(fp);
            fwrite(AddStudent_m, sizeof(class AddStudent), mcount, fp);
            fclose(fp);
            color(2);
            cout << "更改成功！按任意键继续... ...\n";
            color(15);
            j++;
        }
    }
    if (j == 0)
    {
        color(4);
        cout << "查无此人！\n";
        color(15);
    }
    system("PAUSE");
}

void AddStudent::QueryStudentInformation()//查询学生信息
{
    int m;
    Open.QueryFunctionMenu();//进入查询功能菜单
    cout << "请输入你查询的方式序列号：";
    cin >> m;
    do {
        switch (m)
        {
        case 1:Open.QueryStudentID(); break;
        case 2:Open.QueryStudentName(); break;
        case 3:Open.QueryStudentAge(); break;
        case 4:Open.QueryStudentEntranxeScore(); break;
        }
    } while (m < 1 || m>4);
}

void AddStudent::ShowStudentInformation()//显示所有学生信息 
{
    FILE *fp;
    if ((fp = fopen("D:\\test_1.txt", "rb")) == NULL)
    {
        color(4);
        cout << "Can't open the file!\n";
        color(15);
        system("PAUSE");
        exit(1);
    }
    fread(AddStudent_m, sizeof(class AddStudent), mcount, fp);
    if (mcount == 0)
    {
        color(4);
        cout << "The file is NULL!\n";
        color(15);
        system("PAUSE");
        return;
    }
    else {
        cout << "_____________________________________________________\n";
        cout << "|  学号  |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
        for (int i = 0; i < mcount; i++)
        {
            if (AddStudent_m[i].SID != '\0')
                cout << "   " << AddStudent_m[i].SID << "       " << AddStudent_m[i].Name << "       " << AddStudent_m[i].Age << "       " << AddStudent_m[i].Gender << "\t    " << AddStudent_m[i].EntranxeScore << endl;
        }
        cout << "|---------------------------------------------------|\n";
    }
    fclose(fp);
    cout << "按任意键返回主菜单... ...\n";
    system("PAUSE");
}

void AddStudent::AdditionalFunction()//附加功能选项
{
    Open.MoreFunction();//附加功能
    int k;
    do {
        cout << "请输入你要操作的序号：";
        scanf("%d", &k);
        switch (k)
        {
        case 1:Open.Sort_Num(); break;
        case 2:Open.TotalScoreRanking(); break;
        default:
        {
            color(4);
            cout << "输入有误，请重新输入！\n";
            color(15);
        }
        }
    } while (k < 1 || k>2);
}

void AddStudent::QueryStudentID()//学生学号查询
{
    FILE *fp;
    int m, n, j = 0, num_int;
    cout << "请输入你要搜索的学生学号范围：\n";
    cout << "最小值：";
    cin >> m;
    cout << "最大值：";
    cin >> n;
    fp = fopen("D:\\test_1.txt", "rb+");
    fread(AddStudent_m, sizeof(class AddStudent), mcount, fp);
    cout << "_____________________________________________________\n";
    cout << "|  学号  |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
    for (int i = 0; i < mcount; i++)
    {
        num_int = atoi(AddStudent_m[i].SID);
        if (num_int >= m && num_int <= n)
        {
            cout << "   " << AddStudent_m[i].SID << "      " << AddStudent_m[i].Name << "      " << AddStudent_m[i].Age << "       " << AddStudent_m[i].Gender << "\t      " << AddStudent_m[i].EntranxeScore << endl;
            cout << "|---------------------------------------------------|\n";
            j++;
        }
    }
    if (j == 0)
    {
        cout << "无相关学生信息.\n";
    }
    cout << "按任意键返回主菜单... ...\n";
    system("PAUSE");
}

void AddStudent::QueryStudentName()//学生姓名查询
{
    FILE *fp;
    int n = 0;
    char name[10];
    getName(name);//输入学生姓名
    fp = fopen("D:\\test_1.txt", "rb+");
    fread(AddStudent_m, sizeof(class AddStudent), mcount, fp);
    for (int i = 0; i < mcount; i++)
    {
        if (strcmp(AddStudent_m[i].Name, name) == 0) {
            cout << "_____________________________________________________\n";
            cout << "|  学号  |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
            cout << "   " << AddStudent_m[i].SID << "      " << AddStudent_m[i].Name << "      " << AddStudent_m[i].Age << "       " << AddStudent_m[i].Gender << "\t      " << AddStudent_m[i].EntranxeScore << endl;
            cout << "|---------------------------------------------------|\n";
            ++n;
            break;
        }
    }
    if (n == 0)
    {
        color(4);
        cout << "无相关学生信息！\n";
        color(15);
    }
    cout << "按任意键返回主菜单... ...\n";
    system("PAUSE");
}

void AddStudent::QueryStudentAge()//学生年龄查询
{
    FILE *fp;
    int m, n, j = 0, num_int;
    cout << "请输入你要查询的学生年龄范围：\n";
    cout << "最小值：";
    cin >> m;
    cout << "最大值：";
    cin >> n;
    fp = fopen("D:\\test_1.txt", "rb+");
    fread(AddStudent_m, sizeof(class AddStudent), mcount, fp);
    cout << "_____________________________________________________\n";
    cout << "|  学号  |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
    for (int i = 0; i < mcount; i++)
    {
        num_int = atoi(AddStudent_m[i].Age);
        if (num_int >= m && num_int <= n)
        {
            cout << "   " << AddStudent_m[i - 1].SID << "      " << AddStudent_m[i - 1].Name << "      " << AddStudent_m[i - 1].Age << "       " << AddStudent_m[i - 1].Gender << "\t      " << AddStudent_m[i - 1].EntranxeScore << endl;
            cout << "|---------------------------------------------------|\n";
            j++;
        }
    }
    if (j == 0)
    {
        cout << "无相关学生信息！\n";
    }
    cout << "按任意键返回主菜单... ...\n";
    system("PAUSE");
}

void AddStudent::QueryStudentEntranxeScore()//学生分数查询
{
    FILE *fp;
    int m, n, j = 0;
    double num_double;
    cout << "请输入你要查询的学生总成绩范围：\n";
    cout << "最小值：";
    cin >> m;
    cout << "最大值：";
    cin >> n;
    fp = fopen("D:\\test_1.txt", "rb+");
    fread(AddStudent_m, sizeof(class AddStudent), mcount, fp);
    cout << "_____________________________________________________\n";
    cout << "|  学号  |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
    for (int i = 0; i < mcount; i++)
    {
        num_double = atof(AddStudent_m[i].EntranxeScore);
        if (num_double >= m && num_double <= n)
        {
            cout << "   " << AddStudent_m[i].SID << "      " << AddStudent_m[i].Name << "      " << AddStudent_m[i].Age << "       " << AddStudent_m[i].Gender << "\t      " << AddStudent_m[i].EntranxeScore << endl;
            cout << "|---------------------------------------------------|\n";
            j++;
        }
    }
    if (j == 0)
    {
        cout << "无相关学生信息！\n";
    }
    cout << "按任意键返回主菜单... ...\n";
    system("PAUSE");
}

void AddStudent::ExchangeFunction(size_t m, size_t n)//交换数据结构中两个统一结构的不同下标的结构值
{
    double max = 0;
    int max_1 = 0;
    strcpy(Open.EntranxeScore, AddStudent_m[m].EntranxeScore);
    strcpy(AddStudent_m[m].EntranxeScore, AddStudent_m[n].EntranxeScore);
    strcpy(AddStudent_m[n].EntranxeScore, Open.EntranxeScore);
    strcpy(Open.Age, AddStudent_m[m].Age);
    strcpy(AddStudent_m[m].Age, AddStudent_m[n].Age);
    strcpy(AddStudent_m[n].Age, Open.Age);
    strcpy(Open.SID, AddStudent_m[m].SID);
    strcpy(AddStudent_m[m].SID, AddStudent_m[n].SID);
    strcpy(AddStudent_m[n].SID, Open.SID);
    strcpy(Open.Gender, AddStudent_m[m].Gender);
    strcpy(AddStudent_m[m].Gender, AddStudent_m[n].Gender);
    strcpy(AddStudent_m[n].Gender, Open.Gender);
    strcpy(Open.Name, AddStudent_m[m].Name);
    strcpy(AddStudent_m[m].Name, AddStudent_m[n].Name);
    strcpy(AddStudent_m[n].Name, Open.Name);
}

void AddStudent::Sort_Num()//按学号查询
{
    FILE *fp;
    if ((fp = fopen("D:\\test_1.txt", "rb+")) == NULL)
    {
        color(4);
        cout << "Can't open the file!\n";
        color(15);
        system("PAUSE");
        exit(1);
    }
    int num_int, num1_int;
    for (int m = 0; m < mcount - 1; m++)//比较学号大小
    {
        for (int n = m + 1; n < mcount; n++)
        {
            num_int = atoi(AddStudent_m[n].SID);
            num1_int = atoi(AddStudent_m[m].SID);
            if (num_int < num1_int)
            {
                Open.ExchangeFunction(m, n);//交换一个结构体整体值
            }
        }
    }
    color(6);
    cout << "排序成功！按任意键继续... ...\n";
    color(15);
    cout << "_____________________________________________________\n";
    cout << "|  学号  |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
    for (int j = 0; j < mcount; j++)
    {
        cout << "   " << AddStudent_m[j].SID << "       " << AddStudent_m[j].Name << "      " << AddStudent_m[j].Age << "       " << AddStudent_m[j].Gender << "\t     " << AddStudent_m[j].EntranxeScore << endl;
        cout << "|---------------------------------------------------|\n";
    }
    rewind(fp);
    fwrite(AddStudent_m, sizeof(class AddStudent), mcount, fp);
    fclose(fp);
    system("PAUSE");
}

void AddStudent::TotalScoreRanking()//按总分排序
{
    FILE *fp;
    if ((fp = fopen("D:\\test_1.txt", "rb+")) == NULL)
    {
        color(4);
        cout << "Can't open the file!\n";
        color(15);
        system("PAUSE");
        exit(1);
    }
    double num_double, num1_double;
    for (int m = 0; m < mcount - 1; m++)//比较总分大小
    {
        for (int n = m + 1; n < mcount; n++)
        {
            num_double = atof(AddStudent_m[n].EntranxeScore);
            num1_double = atof(AddStudent_m[m].EntranxeScore);
            if (num_double > num1_double)
            {
                ExchangeFunction(m, n);//交换两个结构体整体值
            }
        }
    }
    color(6);
    cout << "排序成功！按任意键继续... ...\n";
    color(15);
    cout << "_____________________________________________________\n";
    cout << "|  学号  |  姓名  |  年龄  |  性别  |    总分成绩   |\n";
    for (int j = 0; j < mcount; j++)
    {
        cout << "   " << AddStudent_m[j].SID << "       " << AddStudent_m[j].Name << "      " << AddStudent_m[j].Age << "       " << AddStudent_m[j].Gender << "\t     " << AddStudent_m[j].EntranxeScore << endl;
        cout << "|---------------------------------------------------|\n";
    }
    rewind(fp);
    fwrite(AddStudent_m, sizeof(class AddStudent), mcount, fp);
    fclose(fp);
    system("PAUSE");
}

void AddStudent::AddStudent_txt()
{
    for (size_t i = 0; i < N; i++)
    {
        strcpy(AddStudent_m[i].Character_A, "\r\n");
        strcpy(AddStudent_m[i].Character_B, "\r\n");
        strcpy(AddStudent_m[i].Character_C, "\r\n");
        strcpy(AddStudent_m[i].Character_D, "\r\n");
        strcpy(AddStudent_m[i].Character_E, "\r\n");
        strcpy(AddStudent_m[i].Character_F, "\r\n");

        strcpy(AddStudent_m[i].Character_a, "SID:");
        strcpy(AddStudent_m[i].Character_b, "Name:");
        strcpy(AddStudent_m[i].Character_c, "Age:");
        strcpy(AddStudent_m[i].Character_d, "Gender:");
        strcpy(AddStudent_m[i].Character_e, "EntranxeScore:");
    }
}

int main(void)
{
    int num_1, k;
    FILE *fp;
    if ((fp = fopen("D:\\test_1.txt", "ab+")) == NULL) {
        ;//打开文本/创建，进行操作 
        color(4);
        cerr << "Open the file error!" << endl;
        color(15);
        system("PAUSE");
        exit(1);
    }
    fread(AddStudent_m, sizeof(class AddStudent), N, fp);//读取文本储存信息 
    Open.AddStudent_txt();
    for (k = 0; k < N; k++)//判断文本中储存人数（Age==0表示此处无数据） 
    {
        if (AddStudent_m[k].JudgeDate(k))
        {
            break;
        }
        mcount++;
    }
    fclose(fp);//关闭指针 
    Open.MenuBar();//显示菜单 
    while (1)//使用者操作 
    {
        do
        {
            cout << "请输入要进行操作的序列号：";
            cin >> num_1;
        } while (num_1 < 0 || num_1>6);
        if (num_1 == 0)break;

        switch (num_1)
        {
        case 1:Open.AddStudentInformation(); break;
        case 2:Open.DeleteStudentInformation(); break;
        case 3:Open.ChangeStudentInformation(); break;
        case 4:Open.QueryStudentInformation(); break;
        case 5:Open.ShowStudentInformation(); break;
        case 6:Open.AdditionalFunction(); break;
        }
        system("cls");
        Open.MenuBar();
    }
    return 0;
}
main.cpp

我存放的盘为D盘test_1.txt文件，如果显示Open the file error! 可以查看自己是否有D盘，可以自行更改到C盘。

主要功能：

  • 学生信息添加。
  • 学生信息删除：通过学号删除。
  • 更改学生信息：通过学号删除。
  • 查询学生信息：1.通过学号查询。 2.通过姓名查询。 3.通过年龄查询。 4.通过分数查询。
  • 显示所有学生信息

附加机制：

  • 检查学生姓名长度输入
  • 检查学号大小输入
  • 检查学号重复输入
  • 检查年龄大小输入
  • 检查性别输入
  • 检查文本包含信息数
  • 交换数据

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