记C++课程设计--学生信息管理系统

来源：互联网发布：linux 脚本优先级编辑：程序博客网时间：2024/04/24 08:16
C++课程设计--学生信息管理系统
虽然老套,但是很经典,于是就把自己写的代码放上面了,以后或许还能看到当初的幼稚 :).
本代码实现了对学生信息的创建,修改,删除,排序,文件保存等基本操作,通过文件实现了多个用户的多个密码登录
附代码:
<strong>#include<iostream>#include<cstring>#include<string>#include<fstream>#include<algorithm>#include<iomanip>#include<cstdio>#include<cstdlib>#include<conio.h>#include<windows.h>using namespace std;class student{private:    long long  num;    char name[20];    char sex[6];    int age;    char  phone[20];public:    static int NUM;    student() {}    ~student() {}    void input();    friend void readin();    friend   void show();    friend   void mood();    friend  void del();    friend  void soort();    friend   void save();    friend  void findyou();    friend void clear1();} zhuo_yue[100];int student::NUM=0;void readin(){    ifstream in("inf.txt",ios::binary);    int i=1;    while(!in.eof())    {        in.read((char*) &zhuo_yue[i],sizeof(zhuo_yue[i]));        i++;    }    in.close();    student::NUM=i-2;}void show(){    if(student::NUM==0)        cout<<endl<<endl<<setw(10)<<"暂无学生信息";    else    {        cout<<"学生信息显示"<<endl<<endl;        cout<<"学号"<<setw(15)<<"姓名"<<setw(15)            <<"性别"<<setw(15)<<"年龄"<<setw(15)<<"电话"            <<endl;        for(int i=1; i<=student::NUM; i++)        {            cout<<zhuo_yue[i].num<<setw(15)<<zhuo_yue[i].name<<setw(15)                <<zhuo_yue[i].sex<<setw(15)<<zhuo_yue[i].age<<setw(15)<<zhuo_yue[i].phone                <<endl;        }    }    cout<<endl<<setw(40)<<"按任意键退出";    getch();}void mood(){    long long L;    cout<<"请输入欲修改的学号：";    cin>>L;    cout<<endl<<setw(40)<<"确认修改(y/n)";    if(getch()=='y')    {        system("cls");        for(int i=1; i<=student::NUM; i++)            if(L==zhuo_yue[i].num)            {                cout<<"学生信息修改"<<endl<<endl;                cout<<"学号:";                cin>>zhuo_yue[i].num;                cout<<endl<<endl;                cout<<"姓名:";                cin>>zhuo_yue[i].name;                cout<<endl<<endl;                cout<<"性别:";                cin>>zhuo_yue[i].sex;                cout<<endl<<endl;                cout<<"年龄:";                cin>>zhuo_yue[i].age;                cout<<endl<<endl;                cout<<"电话:";                cin>>zhuo_yue[i].phone;                cout<<endl<<endl;                break;            }        cout<<endl<<setw(40)<<"已修改，按任意键退出";        getch();    }    else        return;}void del(){    int sum=0;    cout<<setw(50)<<"[1]按学号删除                  [2]按姓名删除"<<endl;    if(getch()=='1')    {        cout<<"请输入学号：";        long long it;        cin>>it;        cout<<endl<<setw(30)<<"您确定删除此学生吗？(y/n)";        if(getch()=='y')        {            system("cls");            for(int i=1; i<=student::NUM; i++)            {                if(zhuo_yue[i].num==it)                {                    for(int j=i+1; j<=student::NUM; j++)                        zhuo_yue[j-1]=zhuo_yue[j];                    student::NUM--;                    sum++;                    break;                }            }            cout<<"共删除"<<sum<<"人";        }        else            return;    }    else  if(getch()=='2')    {        char name1[20];        cout<<"请输入姓名：";        cin>>name1;        cout<<endl<<setw(30)<<"您确定删除此学生吗？(y/n)";        if(getch()=='y')        {            system("cls");            for(int i=1; i<=student::NUM; i++)            {                if(strcmp(zhuo_yue[i].name,name1)==0)                {                    for(int j=i+1; j<=student::NUM; j++)                        zhuo_yue[j-1]=zhuo_yue[j];                    student::NUM--;                    sum++;                }            }            cout<<"共删除"<<sum<<"人";        }        else            return;    }    cout<<endl<<endl<<setw(40)<<"按任意键结束";    getch();}void soort(){    cout<<setw(50)<<"[1]按学号排序                  [2]按年龄排序"<<endl;    if(getch()=='1')    {        for(int i=1; i<student::NUM; i++)            for(int j=1; j<student::NUM-i+1; j++)            {                if(zhuo_yue[j].num>zhuo_yue[j+1].num)                {                    student it=zhuo_yue[j];                    zhuo_yue[j]=zhuo_yue[j+1];                    zhuo_yue[j+1]=it;                }            }        cout<<endl<<setw(50)<<"已排序，按任意键退出";        getch();    }    else  if(getch()=='2')    {        for(int i=1; i<student::NUM; i++)            for(int j=1; j<student::NUM-i+1; j++)            {                if(zhuo_yue[j].age>zhuo_yue[j+1].age)                {                    student it=zhuo_yue[j];                    zhuo_yue[j]=zhuo_yue[j+1];                    zhuo_yue[j+1]=it;                }            }        cout<<endl<<setw(50)<<"已排序，按任意键退出";        getch();    }}void student::input(){LI:    NUM++;    cout<<"学生信息输入"<<endl<<endl;    cout<<"学号:";    cin>>zhuo_yue[NUM].num;    cout<<endl<<endl;    cout<<"姓名:";    cin>>zhuo_yue[NUM].name;    cout<<endl<<endl;    cout<<"性别:";    cin>>zhuo_yue[NUM].sex;    cout<<endl<<endl;    cout<<"年龄:";    cin>>zhuo_yue[NUM].age;    cout<<endl<<endl;    cout<<"电话:";    cin>>zhuo_yue[NUM].phone;    cout<<endl<<endl;    cout<<"已输入，是否继续  (y/n)";    if(getch()=='y')    {        system("cls");        goto LI;    }    else return;}void save(){    ofstream out("inf.txt",ios::binary);    cout<<endl<<setw(40)<<"已保存，按任意键退出";    for(int i=1; i<=student::NUM; i++)    {        out.write((char*)&zhuo_yue[i],sizeof(zhuo_yue[i]));    }    out.close();    getch();}void findyou(){    int sum=0;    cout<<setw(50)<<"[1]按学号查找                  [2]按姓名查找"<<endl;    if(getch()=='1')    {        cout<<"请输入学号：";        long long it;        cin>>it;        cout<<endl<<setw(30)<<"您确定查看此学生吗？(y/n)";        if(getch()=='y')        {            system("cls");            cout<<"查看学生信息"<<endl<<endl;            for(int i=1; i<=student::NUM; i++)            {                if(zhuo_yue[i].num==it)                {                    cout<<setw(20)<<"学号:"<<zhuo_yue[i].num<<endl                        <<setw(20)<<"姓名:"<<zhuo_yue[i].name<<endl                        <<setw(20)<<"性别:"<<zhuo_yue[i].sex<<endl                        <<setw(20)<<"年龄:"<<zhuo_yue[i].age<<endl                        <<setw(20)<<"电话:"<<zhuo_yue[i].phone<<endl;                    cout<<"---------------------------------------"<<endl<<endl;                    sum++;                }            }            cout<<"共显示"<<sum<<"人";        }        else            return;    }    else  if(getch()=='2')    {        char name1[20];        cout<<"请输入姓名：";        cin>>name1;        cout<<endl<<setw(30)<<"您确定查看具有此姓名的学生吗？(y/n)";        if(getch()=='y')        {            system("cls");            cout<<"查看学生信息"<<endl<<endl;            for(int i=1; i<=student::NUM; i++)            {                if(strcmp(zhuo_yue[i].name,name1)==0)                {                    cout<<setw(20)<<"学号:"<<zhuo_yue[i].num<<endl                        <<setw(20)<<"姓名:"<<zhuo_yue[i].name<<endl                        <<setw(20)<<"性别:"<<zhuo_yue[i].sex<<endl                        <<setw(20)<<"年龄:"<<zhuo_yue[i].age<<endl                        <<setw(20)<<"电话:"<<zhuo_yue[i].phone<<endl;                    cout<<"---------------------------------------"<<endl<<endl;                    sum++;                }            }            cout<<"共显示"<<sum<<"人";        }        else            return;    }    cout<<endl<<endl<<setw(40)<<"按任意键结束";    getch();}char mainmenu(){    cout<<"\n\n              欢迎进入学生信息管理系统 "<<endl<<endl;    cout<<"\n\n             [1]管理员               [2]学生"<<endl<<endl;    char ff=getch();    return ff;}void adminmainmenu(){    cout<<"\n\n              欢迎进入学生信息管理系统(管理者) "<<endl<<endl        <<endl        <<endl        <<"               1: 录入学生信息 "<<endl<<endl        <<"               2: 显示学生信息 "<<endl<<endl        <<"               3: 修改学生信息 "<<endl<<endl        <<"               4: 删除学生信息 "<<endl<<endl        <<"               5: 查找学生信息 "<<endl<<endl        <<"               6: 保存学生信息 "<<endl<<endl        <<"               7: 排序学生信息"<<endl<<endl        <<"               8: 返回初始页面"<<endl<<endl        <<"               0: 退出系统"<<endl;}void mainmenu1(){    cout<<"\n\n              欢迎进入学生信息管理系统(学生) "<<endl<<endl        <<endl        <<endl        <<"               1: 显示学生信息 "<<endl<<endl        <<"               2: 查找学生信息 "<<endl<<endl        <<"               3: 排序学生信息"<<endl<<endl        <<"               4: 返回初始页面"<<endl<<endl        <<"               0: 退出系统"<<endl;}void clear1(){    fstream cl;    cl.open("inf.txt",ios::out);    cl.close();    cout<<"销毁成功";    exit(1);}int main(){LIIIII:    readin();    system("cls");    char get =  mainmenu();    if(get=='1')    {        char adminname[20],mima[20];        ifstream in;        ofstream out;        in.open("admin.txt",ios::in);        if(!in)        {            cout<<"无管理员账号，请先设定："<<endl<<endl;FF:            cout<<"输入账号名：";            cin>>adminname;            cout<<"输入密码：";            cin>>mima;            cout<<"确定创建(y/n)";            char fff=getch();            if(fff=='y')            {                out.open("admin.txt",ios::app);                out<<adminname<<' '<<mima<<' ';                system("cls");                cout<<"                             已创建，按任意键返回";                getch();                out.close();                goto LIIIII;            }            else if(fff=='n')                goto LIIIII;        }        else        {            system("cls");            cout<<"                    已存在用户"<<endl<<endl;            cout<<"是否新建管理员账户(y/n)";            char gr=getch();            if(gr=='y')            {                system("cls");                goto FF;            }ss1:            system("cls");            cout<<"登录账号：";            cin>>adminname;            cout<<"输入密码：";            cin>>mima;            char adminname1[20],mima1[20];            int flog=0;            while(!in.eof())            {                in>>adminname1>>mima1;                if(!strcmp(adminname,adminname1)&&!strcmp(mima1,mima))                {                    flog=0;                    break;                }            }            if(flog==0)            {                system("cls");                cout<<"               登陆成功            按任意键继续";                getch();            }            else            {                cout<<"密码错误"<<endl<<endl;                cout<<"[1]返回初始界面      [2]重新输入密码";                char gg=getch();                if(gg=='1')                    goto LIIIII;                else                {                    system("cls");                    goto ss1;                }            }        }        while(1)        {            adminmainmenu();            char ch;            ch=getchar();            system("CLS");            switch(ch)            {            case '1':                zhuo_yue[student::NUM].input();                break;            case '2':                show();                break;            case '3':                mood();                break;            case '4':                del();                break;            case '5':                findyou();                break;            case '6':                save();                break;            case '7':                soort();                break;            case '8':                goto LIIIII;            case 'F':                clear1();            case '0':                cout<<"\n\n\n\n                         谢谢使用~~";                exit(1);            }        }    }    else if(get=='2')    {        char stuname[20],stumima[20];        ifstream in;        ofstream out;        in.open("student.txt",ios::in);        if(!in)        {            cout<<"无学生账号，请先设定："<<endl<<endl;LL:            cout<<"输入账号名：";            cin>>stuname;            cout<<"输入密码：";            cin>>stumima;            cout<<"确定创建(y/n)";            char fff=getch();            if(fff=='y')            {                out.open("student.txt",ios::app);                out<<stuname<<' '<<stumima<<' ';                system("cls");                cout<<"                             已创建，按任意键返回";                getch();                out.close();                goto LIIIII;            }            else if(fff=='n')                goto LIIIII;        }        else        {            system("cls");            cout<<"                    已存在用户"<<endl<<endl;            cout<<"是否新建账户(y/n)";            char gr=getch();            if(gr=='y')            {                system("cls");                goto LL;            }sss:            system("cls");            cout<<"登录账号：";            cin>>stuname;            cout<<"输入密码：";            cin>>stumima;            char stuname1[20],stumima1[20];            int flog=1;            while(!in.eof())            {                in>>stuname1>>stumima1;                if(!strcmp(stuname,stuname1)&&!strcmp(stumima1,stumima))                {                    flog=0;                    break;                }            }            if(flog==0)            {                system("cls");                cout<<"               登陆成功            按任意键继续";                getch();            }            else if(flog==1)            {                system("cls");                cout<<"密码错误"<<endl<<endl;                cout<<"[1]返回初始界面      [2]重新输入密码";                char gg=getch();                if(gg=='1')                    goto LIIIII;                else                {                    system("cls");                    goto  sss;                }            }            in.close();        }        while(1)        {            mainmenu1();            char ch;            ch=getchar();            system("CLS");            switch(ch)            {            case '1':                show();                break;            case '2':                findyou();                break;            case '3':                soort();                break;            case 'F':                clear1();            case '4':                goto LIIIII;            case '0':                cout<<"\n\n\n\n                         谢谢使用~~";                exit(1);            }        }    }}</strong>
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