C++课程设计--学生信息管理系统
尽管老套,可是非常经典,于是就把自己写的代码放上面了,以后也许还能看到当初的幼稚 :).
本代码实现了对学生信息的创建,改动,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password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)<<"按随意键退出";
getch();
}
void mood()
{
long long L;
cout<<"请输入欲改动的学号：";
cin>>L;
cout<<endl<<setw(40)<<"确认改动(y/n)";
if(getch()=='y')
{
system("cls");
for(int i=1; i<=student::NUM; i++)
if(L==zhuo_yue[i].num)
{
cout<<"学生信息改动"<<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)<<"已改动，按随意键退出";
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)<<"按随意键结束";
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，按随意键退出";
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，按随意键退出";
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。按随意键退出";
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)<<"按随意键结束";
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: 改动学生信息 "<<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password：";
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，按随意键返回";
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password：";
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 按随意键继续";
getch();
}
else
{
cout<<"password错误"<<endl<<endl;
cout<<"[1]返回初始界面 [2]又一次输入password";
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password：";
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。按随意键返回";
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password：";
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 按随意键继续";
getch();
}
else if(flog==1)
{
system("cls");
cout<<"password错误"<<endl<<endl;
cout<<"[1]返回初始界面 [2]又一次输入password";
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>