Question

课程设计 C语言学籍管理系统！！！

用数据文件存放学生的学籍，可对学生学籍进行注册，登录，修改，删除，查找，统计，学籍变化等操作。（用文件保存）
功能要求：
（1） 系统以菜单方式工作。
（2） 登记学生的学号，姓名，性别，年龄，籍贯，系别，专业，班级；修改已知学号的学生信息；
（3） 删除已知学号的学生信息；
（4） 查找已知学号的学生信息；
（5） 按学号，专业输出学生籍贯表。
（6） 查询学生学籍变化，比如入学，转专业，退学，降级，休学，毕业。

Answer 1

给你看个我写的班费管理系统，跟你这个比较类似，你改下就好了

#include<iostream>
#include<string>
#include<vector>
#include <fstream>
#include<sstream>

using namespace std;

class student
{
public:
student(string ,string ,string ,string );
string getSex(){return _sex;};
string getName(){return _name;};
string getID(){return _id;};
string getmoney(){return _money;};
void setMoney(string a){_money=a;};
void deleted(){_id="deleted";_name="deleted";_sex="deleted";_money="deleted";};
void setName(string);
void save();
void print();
private:
string _id;
string _name;
string _sex;
string _money;
string _total;
};

student::student(string id, string name, string sex,string money)
{
_id=id;_name=name;_sex=sex;
_money=money;
}

void student::save()
{
ofstream outf;
outf.open("myfile.txt",ios::app);
outf<<_id
<<"\t"<< _name
<<"\t"<<_sex
<<"\t"<<_money<<endl;
outf.close();
}

void student::print()
{
cout<<_id
<<"\t\t"<< _name
<<"\t\t"<<_sex
<<"\t\t"<<_money<<endl;
}

void printMenu(void)
{

cout<<"-------------class fee management system--------------"<<endl;
cout<<"| |"<<endl;
cout<<"| author:XY |"<<endl;
cout<<"| www.hdxuyi.cn |"<<endl;
cout<<"|----------------------------------------------------|"<<endl;
cout<<"| |"<<endl;
cout<<"| 1.Increase the student records |"<<endl;
cout<<"| 2.Delete student records |"<<endl;
cout<<"| 3.The total of class fee |"<<endl;
cout<<"| 4.search the class fee |"<<endl;
cout<<"| 5.view all class fee |"<<endl;
cout<<"| 6.add one class fee |"<<endl;
cout<<"| 0.exit |"<<endl;
cout<<"| |"<<endl;
cout<<"------------------------------------------------------"<<endl;
cout<<"make your choice:"<<endl;
}

void addstudent();//添加学生信息
void delstudent();//删除学生信息
void selstudent();//查询学生信息
void selall();//查询所有信息
void total();//班费总额
void addmoney();//增加某个学生的班费（实为更新操作）

bool isinfile=false;//判断是否读取过txt
vector<student> stu;//全局对象student
int main()
{
int order=0;
printMenu();
cin>>order;
while(order!=0)
{
switch(order)
{
case 1:addstudent();printMenu();cin>>order;break;
case 2:delstudent();printMenu();cin>>order;break;
case 3:total();printMenu();cin>>order;break;
case 4:selstudent();printMenu();cin>>order;break;
case 5:selall();printMenu();cin>>order;break;
case 6:addmoney();printMenu();cin>>order;break;
default:break;
}
}
cout<<endl;
cout<<"------------------------------------------------------"<<endl;
cout<<"thank you for using the system~"<<endl;
cout<<"------------------------------------------------------"<<endl;
}

void infile()//读取txt
{
if (isinfile==false)
{
stu.clear();
string tmp_id,tmp_name,tmp_sex,tmp_money;
int time =0;
string lines,field;

ifstream infile("myfile.txt");

while (getline (infile, lines))
{
istringstream stream(lines);
while(stream>>field)
{
switch(time)
{
case 0:tmp_id = field;time=1;break;
case 1:tmp_name = field;time=2;break;
case 2:tmp_sex = field;time=3;break;
case 3:tmp_money = field;time=0;
stu.push_back(student(tmp_id,tmp_name,tmp_sex,tmp_money));break;
}
}
}
isinfile==true;
infile.close();
}
}

void addstudent()
{
string tmp_id;
string tmp_name;
string tmp_sex;
string tmp_money;
cout<<"Insert-->ID:";
cin>>tmp_id;
cout<<"Insert-->Name:";
cin>>tmp_name;
cout<<"Insert-->Sex:";
cin>>tmp_sex;
cout<<"Insert-->Money:";
cin>>tmp_money;
student(tmp_id,tmp_name,tmp_sex,tmp_money).save();
cout<<"save success!"<<endl;
isinfile=false;
}

void selall()
{
infile();
if (stu.size()==0)
{
cout<<"ERR:---->No data in the system!"<<endl;
}
else
{
vector<student>::iterator iter=stu.begin();
vector<student>::iterator iter_end=stu.end();
cout<<endl;
cout<<"------------------------------------------------------"<<endl;
cout<<"id name sex money"<<endl;
for(;iter!=iter_end;iter++)
{
(*iter).print();
}
cout<<"------------------------------------------------------"<<endl;
}
cout<<endl;
}

void delstudent()
{
infile();
string search_name;
string search_id;
cout<<"delete---->id:"<<endl;
cin>>search_id;
cout<<"delete---->name:"<<endl;
cin>>search_name;
bool isFind=false;
if (stu.size()==0)
{
cout<<"ERR:---->No data in the system!"<<endl;
}
else
{
vector<student>::iterator iter=stu.begin();
vector<student>::iterator iter_end=stu.end();
for(;iter!=iter_end;iter++)
{
if( (*iter).getName()==search_name&&(*iter).getID()==search_id)
{
isFind=true;
stu.erase(iter);
}
}

//重新将删除后的集合写入txt
vector<student>::iterator iter1=stu.begin();
vector<student>::iterator iter1_end=stu.end();
ofstream outf;
outf.open("myfile.txt");
for(;iter1!=iter1_end;iter1++)
{
outf<<(*iter1).getID()
<<"\t"<<(*iter1).getName()
<<"\t"<<(*iter1).getSex()
<<"\t"<<(*iter1).getmoney()<<endl;
}
outf.close();
cout<<"delete success!"<<endl;
}
if(!isFind)
{
cout<<"Can't find this student!"<<endl;
}
cout<<endl;
}

void total()
{
infile();
if (stu.size()==0)
{
cout<<"ERR:---->No data in the system!"<<endl;
}
else
{
vector<student>::iterator iter=stu.begin();
vector<student>::iterator iter_end=stu.end();
cout<<"------------------------------------------------------"<<endl;
cout<<"id name sex money"<<endl;
for(;iter!=iter_end;iter++)
{
(*iter).print();
}
cout<<"------------------------------------------------------"<<endl;
}
cout<<endl;
}

void selstudent()
{
infile();
string search;
cout<<"search---->id or name:"<<endl;
cin>>search;
bool isFind=false;
if (stu.size()==0)
{
cout<<"ERR:---->No data in the system!"<<endl;
}
else
{
vector<student>::iterator iter=stu.begin();
vector<student>::iterator iter_end=stu.end();
cout<<"------------------------------------------------------"<<endl;
cout<<"id name sex money"<<endl;
for(;iter!=iter_end;iter++)
{
if( (*iter).getName()==search||(*iter).getID()==search)
{
isFind=true;
(*iter).print();
}
}
cout<<"------------------------------------------------------"<<endl;
}
if(!isFind)
{
cout<<"Can't find this student!"<<endl;
}
cout<<endl;
}

void addmoney()
{
infile();
string search;
string update;
cout<<"search---->id or name:"<<endl;
cin>>search;
bool isFind=false;
if (stu.size()==0)
{
cout<<"ERR:---->No data in the system!"<<endl;
}
else
{
vector<student>::iterator iter=stu.begin();
vector<student>::iterator iter_end=stu.end();
cout<<"id name sex money"<<endl;
for(;iter!=iter_end;iter++)
{
if( (*iter).getName()==search||(*iter).getID()==search)
{
(*iter).print();
isFind=true;
cout<<"update---->new class fee:"<<endl;
cin>>update;
(*iter).setMoney(update);
}
}

//重新将修改后的集合写入txt
vector<student>::iterator iter1=stu.begin();
vector<student>::iterator iter1_end=stu.end();
ofstream outf;
outf.open("myfile.txt");
for(;iter1!=iter1_end;iter1++)
{
outf<<(*iter1).getID()
<<"\t"<<(*iter1).getName()
<<"\t"<<(*iter1).getSex()
<<"\t"<<(*iter1).getmoney()<<endl;
}
outf.close();
cout<<"update success!"<<endl;
}
if(!isFind)
{
cout<<"Can't find this student!"<<endl;
}
cout<<endl;
}

Answer 2

这个基本满足你要求吧，你自己看看

Answer 3

http://download.csdn.net/detail/huangshanchun/4447291