C++ 学生宿舍管理系统
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发布时间：2022-04-29 10:40
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时间：2022-06-26 08:38
#include <string>
#include <fstream>
#include <ctime>
using namespace std;
class student
{
private:
long int stu_num; //学号，宿舍号
char stu_name[40]; //姓名
char class_name[40]; //班别
char house_name[20]; //宿舍
public:
student()
{
stu_num=0;
stu_name[0] =0;
class_name[0] =0;
house_name[0] =0;
}
student::student(long a, char * b,char *c,char *d)
{
Setdata(a , b, c, d);
}
char * Getstuname(void) //姓名查找
{
return stu_name ;
}
long Getstunum(void) //学号查找
{
return stu_num;
}
char * Gethousename(void) //宿舍号查找
{
return house_name;
}
char * Getclassname(void) //按班级查找
{
return class_name;
}
void Setdata(long a, char *b,char *c,char *d)
{
stu_num = a;
strcpy(stu_name, b);
strcpy(class_name, c);
strcpy(house_name, d);
}
void Show(void)
{
cout<<"学号:"<<stu_num<<"\t"<<"姓名:"<<stu_name<<"\t";
cout<<"班级:"<<class_name<<"\t\t"<<"宿舍:"<<house_name<<"\n";
}
};
void main(void)
{
student s1;
int flags=0;
long stu_num; //学号
char stu_name[40]; //姓名
char class_name[40]; //班级
char house_name[20]; //宿舍
time_t t;
time(&t);
ifstream file1;
ofstream file3;
char flag = 'y';
cout<< "---------------------------------学生成绩管理系统-------------------------------"<<endl;
cout<< "\t\t\t 时间:" << ctime(&t);
while( flag=='y' || flag=='Y')
{ //由flag控制循环
cout<<"--------------------------------------------------------------------------------\n";
cout<<"\t\t 1:注册学生!\n";
cout<<"\t\t 2:按学号查看学生信息!\n";
cout<<"\t\t 3:按宿舍号查看学生信息!\n";
cout<<"\t\t 4:按姓名查看学生信息!\n";
cout<<"\t\t 5:按班级查看学生信息!\n";
cout<<"\t\t 6:显示全部学生信息\n";
// cout<<"\t\t 7:按学号修改学生信息\n";
// cout<<"\t\t 8:按学号删除学生信息!\n";
cout<<"--------------------------------------------------------------------------------\n";
cout<<"请输入选择：";
char choice;
cin>>choice;
switch(choice)
{
case '1':
file3.open("c:\\stu.dat",ios::app|ios::binary);
input: flags=0;
cout<<"输入学号：";
cin>>stu_num;
while (stu_num<100000 || stu_num>999999)
{
cin.clear();
rewind(stdin);
cout << "你输入的学号不正确，请输入一个六位数的学号" << endl;
cout << "学号:";
cin >> stu_num;
}
file1.open("c:\\stu.dat",ios::in | ios::binary | ios::beg);//按读方式打开文件
while(!file1.eof())
{
int n;
file1.read((char *)&s1,sizeof(student));
n=file1.gcount();
if(n==sizeof(student))
{
if(s1.Getstunum()==stu_num)
flags=1;
}
}
file1.clear();
file1.close();
if (flags==1)
{
cin.clear();
cout << "学号重复,请重输入!" << endl;
goto input;
}
cout<<"输入姓名："; cin>>stu_name;
cout<<"输入班级："; cin>>class_name;
cout<<"输入宿舍："; cin>>house_name;
s1.Setdata(stu_num,stu_name,class_name,house_name);
file3.write((char*)&s1,sizeof(s1));
file3.clear();
file3.close();
break;
case '2': //按学号查找
cout<<"请输入学生的学号：";
cin>>stu_num;
while (stu_num<100000 || stu_num>999999)
{
cin.clear();
rewind(stdin);
cout << "你输入的学号不正确，请输入一个六位数的学号" << endl;
cout << "学号:";
cin >> stu_num;
}
file1.open("c:\\stu.dat",ios::in | ios::binary | ios::beg);//按读方式打开文件
while(!file1.eof())
{
int n;
file1.read((char *)&s1,sizeof(student));
n=file1.gcount();
if(n==sizeof(student))
{
if(s1.Getstunum()==stu_num) //显示学生信息
{
s1.Show();
flags=1;
}
}
}
file1.clear();
file1.close();
if (flags==0)
cout << "没有找学号为："<< stu_num <<"的学生记录!" << endl;
flags=0;
break;
case '3': //按宿舍号查找
cout<<"请输入宿舍号:";
cin>>house_name;
file1.open("c:\\stu.dat",ios::in | ios::binary | ios::beg);//按读方式打开文件
while(!file1.eof())
{
int n;
file1.read((char *)&s1,sizeof(student));
n=file1.gcount();
if(n==sizeof(student))
{
if(strcmp(s1.Gethousename(),house_name)==0)
{
s1.Show();
flags=1;
}
}
}
file1.clear();
file1.close();
if (flags==0)
cout << "没有找到宿舍为:"<< house_name <<"的学生记录!" << endl;
flags=0;
break;
case '4': //按姓名查找
cout<<"请输入学生姓名:";
cin>>stu_name;
file1.open("c:\\stu.dat",ios::in | ios::binary | ios::beg);//按读方式打开文件
while(!file1.eof())
{
int n;
file1.read((char *)&s1,sizeof(student));
n=file1.gcount();
if(n==sizeof(student))
{
if(strcmp(s1. Getstuname(),stu_name)==0)
{
s1.Show();
flags=1;
}
}
}
file1.clear();
file1.close();
if (flags==0)
cout << "没有找到姓名为:"<< stu_name <<"的学生记录!" << endl;
flags=0;
break;
case '5': //按班级查找
cout<<"请输入班级名称:";
cin>>class_name;
file1.open("c:\\stu.dat",ios::in | ios::binary | ios::beg);//按读方式打开文件
while(!file1.eof())
{
int n;
file1.read((char *)&s1,sizeof(student));
n=file1.gcount();
if(n==sizeof(student))
{
if(strcmp(s1. Getclassname(),class_name)==0)
{
s1.Show();
flags=1;
}
}
}
file1.clear();
file1.close();
if (flags==0)
cout << "没有找到该班级为:"<< class_name <<"的学生记录!" << endl;
flags=0;
break;
case '6': //显示全部学生信息
file1.open("c:\\stu.dat",ios::in | ios::binary);//按读方式打开文件
while(!file1.eof())
{
int n;
file1.read((char *)&s1,sizeof(student));
n=file1.gcount();
if(n==sizeof(student))
{
s1.Show();
flags=1;
}
}
file1.clear();
file1.close();
if (flags==0)
cout << "数据库没有记录!" << endl;
flags=0;
break;
// case '7': //修改学生信息按学号
// flags=0;
// cout<<"请输入要修改学生的学号:";
// cin>>stu_num;
// while (stu_num<100000 || stu_num>999999)
// {
// cin.clear();
// rewind(stdin);
// cout << "你输入的学号不正确，请输入一个六位数的学号" << endl;
// cout << "学号:";
// cin >> stu_num;
// }
// file1.open("c:\\stu.dat",ios::in | ios::binary | ios::beg);//按读方式打开文件
// while(!file1.eof())
// {
// int n;
// file1.read((char *)&s1,sizeof(student));
// n=file1.gcount();
// if(n==sizeof(student))
// {
// if(s1.Getstunum()==stu_num)
// {
// file3.open("c:\\stu.dat",ios::out|ios::binary);
// cout<<"输入姓名："; cin>>stu_name;
// cout<<"输入班级："; cin>>class_name;
// cout<<"输入宿舍："; cin>>house_name;
// s1.Setdata(stu_num,stu_name,class_name,house_name);
// file3.write((char*)&s1,sizeof(s1));
// file3.close();
// flags=1;
// }
// }
// }
// file1.clear();
// file1.close();
// if (flags==0)
// {
// cout << "没有此学生记录，不能进行修改！" << endl;
// break;
// }
// break;
// case '8': //删除学生信息按学号
default: flag = 'n';
break;
}
}
cout << "谢谢您的使用!" << endl;
}
