我的程序可以运行但总有几个功能有问题，大家帮我看看错哪里了？？？
大家我的程序可以运行，可以输入储存，但是读取完信息后在显示就会出问题，是读取功能有问题嘛？？ 而且没法计算平均成绩，排序也不能用...大家帮我找找错啊！！！
程序代码：#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <iomanip>
#include <algorithm>
#include <functional>
#include <stdlib.h>
using namespace std;
class Student
{
public:
Student();
virtual ~Student();
void Get_message(); /*输入函数*/
void Show_message(); /*输出函数*/
int num;//定义学号
string name;//定义姓名
string sex;
int age;
/*年龄*/
};
Student::Student()
{
num=0;
name="";
sex="";
age=0;
}
Student::~Student(){}
void Student::Get_message()
{
cout<<"请输入学生学号:";
cin>>num;
cout<<"请输入学生姓名:";
cin>>name;
cout<<"请输入学生性别:";
cin>>sex;
cout<<"请输入学生年龄:";
cin>>age;
}
void Student::Show_message()
{
cout <<"\t\t 学号:" <<num <<endl;
cout <<"\t\t 姓名:" <<name <<endl;
cout <<"\t\t 性别:" <<sex <<endl;
cout <<"\t\t 年龄:" <<age <<endl;
}
class benke:public Student /*本科生类*/
{
public:
benke(){}
~benke(){}
string major; /*专业*/
int math;
int english;
int lisan;
int chinese;
float average;
void compute();//计算平均成绩
void Get_message() /*输入函数*/
{
Student::Get_message();
cout <<"请输入学生专业： ";
cin>>major; /*输入其特有信息 专业*/
cout <<"请输入学生数学成绩: ";
cin>>math;
cout <<"请输入学生英语成绩: ";
cin>>english;
cout <<"请输入学生离散成绩: ";
cin>>lisan;
cout <<"请输入学生语文成绩: ";
cin>>chinese;
}
void Show_message();
};
void benke::compute()
{
average=float(math+english+lisan+chinese)/4;
}
void benke::Show_message()
{
Student::Show_message();
cout <<"\t\t 专业： "<<major <<endl;
cout <<"\t\t 数学成绩:" <<math <<endl;
cout <<"\t\t 英语成绩:" <<english <<endl;
cout <<"\t\t 离散成绩:" <<lisan <<endl;
cout <<"\t\t 语文成绩:" <<chinese <<endl;
cout <<"\t\t 平均成绩:" <<average <<endl;
}
class yanjiu:public Student /*本科生类*/
{
public:
yanjiu(){}
~yanjiu(){}
string teacher; /*专业*/
int yanjiushengwu;
int yanjiuenglish;
int yanjiulixue;
float average;
void compute();
void Get_message() /*输入函数*/
{
Student::Get_message();
cout <<"请输入学生导师： ";
cin>>teacher; /*输入其特有信息 专业*/
cout <<"请输入学生研究生物成绩: ";
cin>>yanjiushengwu;
cout <<"请输入学生研究英语成绩: ";
cin>>yanjiuenglish;
cout <<"请输入学生研究力学成绩: ";
cin>>yanjiulixue;
}
void Show_message();
};
void yanjiu::compute()
{
average=float(yanjiuenglish+yanjiulixue+yanjiushengwu)/3;
}
void yanjiu::Show_message()
{
Student::Show_message();
cout <<"\t\t 导师： "<<teacher <<endl;
cout <<"\t\t 研究生物成绩:" <<yanjiushengwu<<endl;
cout <<"\t\t 研究英语成绩:" <<yanjiuenglish <<endl;
cout <<"\t\t 研究力学成绩:" <<yanjiulixue <<endl;
cout <<"\t\t 平均成绩:" <<average <<endl;
}
class chengren:public Student /*本科生类*/
{
public:
chengren(){}
~chengren(){}
string danwei; /*专业*/
int chengrenmath;
int chengrenenglish;
int chengrenhuaxue;
float average;
void compute();
void Get_message() /*输入函数*/
{
Student::Get_message();
cout <<"请输入学生工作单位： ";
cin>>danwei; /*输入其特有信息 专业*/
cout <<"请输入学生成人数学成绩: ";
cin>>chengrenmath;
cout <<"请输入学生成人英语成绩: ";
cin>>chengrenenglish;
cout <<"请输入学生成人化学成绩: ";
cin>>chengrenhuaxue;
cout<<"pingjunchengji"<<average<<endl;
}
void Show_message();
};
void chengren::compute()
{
average=float(chengrenmath+chengrenenglish+chengrenhuaxue)/3;
}
void chengren::Show_message()
{
Student::Show_message();
cout <<"\t\t 工作单位： "<<danwei <<endl;
cout <<"\t\t 成人数学成绩:" <<chengrenmath <<endl;
cout <<"\t\t 成人英语成绩:" <<chengrenenglish <<endl;
cout <<"\t\t 成人化学成绩:" <<chengrenhuaxue<<endl;
cout <<"\t\t 平均成绩:" <<average <<endl;
}
typedef vector<benke> BenKe;
typedef vector<yanjiu> Yanjiu;
typedef vector<chengren> Chengren;
class Xitong /*操作管理系统*/
{
public:
BenKe mybenke;
Yanjiu myyanjiu;
Chengren mychengren;
static int benkeSort(benke a, benke b);
static int yanjiuSort(yanjiu a, yanjiu b);
static int chengrenSort(chengren a, chengren b);
Xitong(){};
~Xitong(){};
void Show(int c); //显示信息
void save();
void Interface1(); //选择种类界面
void Interface(); /*功能主界面函数*/
void read();
bool del();
void paixu();
void In_information(); /*信息添加功能函数*/
};
void Xitong::Interface1()
{
cout <<"\t\t 1.本科生 " <<endl;
cout <<"\t\t 2.研究生 " <<endl;
cout <<"\t\t 3.成人继续教育生 " <<endl;
cout <<"\t\t 4.返回上一级菜单 " <<endl;
cout <<"\t\t 请您选择学生类别： " <<endl;
}
void Xitong::save() //储存信息
{
ofstream fout("Student.txt",ios::app);
ofstream fout1("fenshu.txt",ios::app);
if(!fout||!fout1)
{
cout<<"Cannot open output file!\n,";
return;
}
for(unsigned int i=0; i<mybenke.size(); i++)
{ fout<<mybenke[i].num<<" "<<mybenke[i].name<<" "<<mybenke[i].sex<<" "<<mybenke[i].age<<" "<<mybenke[i].major<<" "<<
mybenke[i].math<<" "<<mybenke[i].english<<" "<<mybenke[i].lisan<<" "<<mybenke[i].chinese<<" "<<mybenke[i].average<<" "<<endl;
fout1<<mybenke[i].num<<" "<<mybenke[i].math<<" "<<mybenke[i].english<<" "<<mybenke[i].lisan<<" "<<mybenke[i].chinese<<" "<<endl;
}
for(i=0; i<myyanjiu.size(); i++)
{ fout<<myyanjiu[i].num<<" "<<myyanjiu[i].name<<" "<<myyanjiu[i].sex<<" "<<myyanjiu[i].age<<" "<<myyanjiu[i].teacher<<" "<<
myyanjiu[i].yanjiushengwu<<" "<<myyanjiu[i].yanjiuenglish<<" "<<myyanjiu[i].yanjiulixue<<" "<<myyanjiu[i].average<<" "<<endl;
fout1<<myyanjiu[i].num<<" "<<myyanjiu[i].yanjiushengwu<<" "<<myyanjiu[i].yanjiuenglish<<" "<<myyanjiu[i].yanjiulixue<<" "<<endl;
}
for(i=0; i<mychengren.size(); i++)
{ fout<<mychengren[i].num<<" "<<mychengren[i].name<<" "<<mychengren[i].sex<<" "<<mychengren[i].age<<" "<<mychengren[i].danwei<<" "<<
mychengren[i].chengrenmath<<" "<<mychengren[i].chengrenenglish<<" "<<mychengren[i].chengrenhuaxue<<" "<<mychengren[i].average<<" "<<endl;
fout1<<mychengren[i].num<<" "<<mychengren[i].chengrenmath<<" "<<mychengren[i].chengrenenglish<<" "<<mychengren[i].chengrenhuaxue<<" "<<endl;
}
fout.close();
fout1.close();
}
void Xitong::In_information() //输入信息
{
int q; // 定义字符型num
int again=1;
char t;
benke b;
yanjiu y;
chengren c;
Xitong s;
while(again)
{
Interface1();
cin>>q;
switch(q)
{
case 1:
{
b.Get_message();
mybenke.push_back(b);
s.mybenke.push_back(b);
break;
}
case 2:
{
y.Get_message();
myyanjiu.push_back(y);
s.myyanjiu.push_back(y);
break;
}
case 3:
{
c.Get_message();
mychengren.push_back(c);
s.mychengren.push_back(c);
break;
}
case 4:
Interface();
break;
default:
cout <<" 输入错误！！ " <<endl;
continue; /*输入错误，给出提示*/
}
cout <<"\t\t\t 信息储存成功！" <<endl;
cout <<"\t\t\t 是否继续输入(y/n)? ";
cin>>t;
cout <<endl;
if(!(t=='Y'||t=='y'))
again=0;
}
Interface();
}
void Xitong::Show(int c)//显示所有人信息
{
if(c == 1)//本科生
{
for(unsigned int i=0; i<mybenke.size(); i++)
mybenke[i].Show_message();
}
if(c == 2)//研究生
{
for(unsigned int i=0; i<myyanjiu.size(); i++)
myyanjiu[i].Show_message();
}
if(c == 3)//成教生
{
for(unsigned int i=0; i<mychengren.size(); i++)
mychengren[i].Show_message();
}
cout<<"显示完成！！"<<endl;
Interface();
}程序代码：void Xitong::read()
{
ifstream file("Student.txt");
char data[10];
int size = 0;
int i=0;
file.getline(data,10);
size = atoi(data);
while(i++<size)
{
benke b;
file.getline(data,10,' ');
b.num =(int)atof(data);
file.getline(data,10,' ');
b.name = string(data); //读取名字
file.getline(data,10,' ');
b.sex = string(data); //读取性别
file.getline(data,10,' ');
b.age = (int)atof(data);
file.getline(data,10,' ');
b.major = string(data); //读取专业
file.getline(data,10,' ');
b.math = (int)atof(data);
file.getline(data,10,' ');
b.english = (int)atof(data);
file.getline(data,10,' ');
b.lisan = (int)atof(data);
file.getline(data,10,' ');
b.chinese = (int)atof(data);
mybenke.push_back(b);
}
i=0;
file.getline(data,10);
size = atoi(data);
while(i++<size)
{
yanjiu y;
file.getline(data,10,' ');
y.num =(int)atof(data);
file.getline(data,10,' ');
y.name = string(data); //读取名字
file.getline(data,10,' ');
y.sex = string(data); //读取性别
file.getline(data,10,' ');
y.age = (int)atof(data);
file.getline(data,10,' ');
y.teacher = string(data);
file.getline(data,10,' ');
y.yanjiushengwu = (int)atof(data);
file.getline(data,10,' ');
y.yanjiuenglish = (int)atof(data);
file.getline(data,10,' ');
y.yanjiulixue = (int)atof(data);
myyanjiu.push_back(y);
}
i=0;
file.getline(data,10);
size = atoi(data);
while(i++<size)
{
chengren c;
file.getline(data,10,' ');
c.num =(int)atof(data);
file.getline(data,10,' ');
c.name = string(data);//读取名字
file.getline(data,10,' ');
c.sex = string(data);//读取性别
file.getline(data,10,' ');
c.age = (int)atof(data);
file.getline(data,10,' ');
c.danwei = string(data);//读取专业
file.getline(data,10,' ');
c.chengrenmath = (int)atof(data);
file.getline(data,10,' ');
c.chengrenenglish = (int)atof(data);
file.getline(data,10,' ');
c.chengrenhuaxue = (int)atof(data);
mychengren.push_back(c);
}
cout<<"读取成功"<<endl;
Interface();
}
bool Xitong::del()
{
cout<<"请输入要删除的学生姓名：";
int c = 0;
string name;
cin>>name;
for(unsigned int i=0; i<mybenke.size(); i++)
{
if(mybenke[i].name== name)
{
c++;
mybenke.erase(mybenke.begin() + i);
}
}
for(i=0; i<myyanjiu.size(); i++)
{
if(myyanjiu[i].name== name)
{
c++;
myyanjiu.erase(myyanjiu.begin() + i);
}
}
for(i=0; i<mychengren.size(); i++)
{
if(mychengren[i].name== name)
{
c++;
mychengren.erase(mychengren.begin() + i);
}
}
if(c == 0)
cout<<"对不起，没有这个学生！！"<<endl;
else
cout<<"删除成功"<<endl;
return 1;
}
void Xitong::paixu()
{
Xitong s;
vector<Student> stu;
int q; // 定义字符型num
int again=1;
char t;
benke b;
yanjiu y;
chengren c;
while(again)
{
Interface1();
cin>>q;
switch(q)
{
case 1:
{
sort(mybenke.begin(),mybenke.end(),benkeSort);
cout<<"排序后:"<<endl;//显示排序后的本科生
s.Show(1);
break;
}
case 2:
{
sort(myyanjiu.begin(),myyanjiu.end(),yanjiuSort);
cout<<"排序后:"<<endl;
s.Show(2);
break;
}
case 3:
{
sort(mychengren.begin(),mychengren.end(),chengrenSort);
cout<<"排序后:"<<endl;
s.Show(3);
break;
}
case 4:
Interface();
break;
default:
cout <<" 输入错误！！ " <<endl;
continue; /*输入错误，给出提示*/
}
cout <<"\t\t\t 是否继续输入(y/n)? ";
cin>>t;
cout <<endl;
if(!(t=='Y'||t=='y'))
again=0;
}
Interface();
}
int Xitong::benkeSort(benke a, benke b)
{
return a.average>b.average;
}
int Xitong::yanjiuSort(yanjiu a, yanjiu b)
{
return a.average>b.average;
}
int Xitong::chengrenSort(chengren a, chengren b)
{
return a.average>b.average;
}
void Xitong::Interface()
{
int rev;
cout <<"\n\n\n\n\n\n\n";
cout <<"\t\t ******************欢迎使用******************" <<endl;
cout <<"\t\t **************学生成绩管理系统**************" <<endl;
cout <<"\t\t 1.添加学生信息 " <<endl;
cout <<"\t\t 2.显示学生信息 " <<endl;
cout <<"\t\t 3.删除学生信息 " <<endl;
cout <<"\t\t 4.读取文件信息 " <<endl;
cout <<"\t\t 5.排序 " <<endl;
cout <<"\t\t 6.存储信息 " <<endl;
cout <<"\t\t 7.计算平均成绩 " <<endl;
cout <<"\t\t 8.退出 " <<endl;
cout <<"\t\t 请您选择(1~5)： " <<endl;
cin>>rev;
switch(rev)
{
case 1:
In_information();
break;
case 2:
Show(1);
Show(2);
Show(3);
break;
case 3:
del();
Interface();
break;
case 4:
read();
break;
case 5:
paixu();
Interface();
break;
case 6:
save();
Interface();
break;
case 7:
benke b;
();
yanjiu y;
();
chengren c;
();
break;
exit(0);
}
Interface();
}
void main()
{
Xitong s;
s.Interface();
}
