C++课程设计《学生信息管理系统》代码.doc

#include<iostream>
#include<fstream>
#include<string>
#include<iomanip>
using namespace std;
#define M 200 //可以存信息总量
int N=0; //学生总量
class student
{
public:
student();
void set(); //初始化信息，第一次对信息的录入
void add(); //添加学生信息
void del(); //删除某学生信息
void change(); //修改某学生信息
void search(); //查询某学生信息
void display(); //显示全部学生信息
private:
static int num;
string name,sex,age,birthday,address,tel,Email;
};
int student::num=1000;

student::student() {}
///初始化文件

void student::set()
{
int i;
string setname,setsex,setage,setbirthday,setaddress,settel,setEmail;
ofstream outfile;
outfile.open("f1.txt",ios::out); //----打开文件----
if(!outfile)
{
cerr<<" open error"<<endl;
exit(1);
}
//----依次录入相应个数的学生信息----
for(i=0;i<M;i++)
{
cout<<"当姓名输入为'0'时，停止输入！！！"<<endl;
cout<<"请输入姓名："<<endl;
cin>>setname;
name=setname;
if(setname=="0") break;
if(setname!="0")
{
N++;
num++;
outfile<<num<<" ";
outfile<<setname<<" ";
cout<<"请输入性别："<<endl;
cin>>setsex;
sex=setsex;
outfile<<setsex<<" ";
cout<<"请输入年龄："<<endl;
cin>>setage;
age=setage;
outfile<<setage<<" ";
cout<<"请输入出生日期："<<endl;
cin>>setbirthday;
birthday=setbirthday;
outfile<<setbirthday<<" ";
cout<<"请输入家庭住址："<<endl;
cin>>setaddress;
address=setaddress;
outfile<<setaddress<<" ";
cout<<"请输入电话："<<endl;
cin>>settel;
tel=settel;
outfile<<settel<<" ";
cout<<"请输入电子邮箱："<<endl;
cin>>setEmail;
Email=setEmail;
outfile<<setEmail<<" "<<endl;
}
}
outfile.close(); //----关闭文件----
}

///添加文件
void student::add()
{
string addname,addsex,addage,addbirthday,addaddress,addtel,addEmail;

//----以追加的方式录入信息，直接将信息追加到以前文件的末尾----
ofstream outfile("f1.txt",ios::app);
if(!outfile)
{
cerr<<" open error"<<endl;
exit(1);
}
N=N+1;
//----依次输入相应的数据，并且追加到之前的文件中去----
cout<<"请输入您要添加的数据"<<endl;
num++;
outfile<<num<<" ";
cout<<"请输入姓名："<<endl;
cin>>addname;
outfile<<addname<<" ";
cout<<"请输入性别："<<endl;
cin>>addsex;
outfile<<addsex<<" ";
cout<<"请输入年龄："<<endl;
cin>>addage;
outfile<<addage<<" ";
cout<<"请输入出生日期："<<endl;
cin>>addbirthday;
outfile<<addbirthday<<" ";
cout<<"请输入家庭住址："<<endl;
cin>>addaddress;
outfile<<addaddress<<" ";
cout<<"请输入电话："<<endl;
cin>>addtel;
outfile<<addtel<<" ";
cout<<"请输入电子邮件："<<endl;
cin>>addEmail;
outfile<<addEmail<<endl;
outfile.close();
cout<<"已添加成功！"<<endl;
}

///删除文件
void student::del()
{
int k,i;
int num[M];
string name[M],sex[M],age[M],birthday[M],address[M],tel[M],Email[M];
ifstream infile("f1.txt",ios::in);
if(!infile)
{
cerr<<" open error"<<endl;
exit(1);
}
for(i=0;i<N;i++)
{
cout<<" ";
infile>>num[i];
cout<<setw(4)<<num[i];
infile>>name[i];
cout<<setw(7)<<name[i];
infile>>sex[i];
cout<<setw(6)<<sex[i];
infile>>age[i];
cout<<setw(6)<<age[i];
infile>>birthday[i];
cout<<setw(12)<<birthday[i];
infile>>address[i];
cout<<setw(11)<<address[i];
infile>>tel[i];
cout<<setw(14)<<tel[i];
infile>>Email[i];
cout<<setw(18)<<Email[i]<<endl;
}
cout<<"您想删除第几个学生信息？"<<endl;
cin>>k;
k=k-1;
infile.close();
ofstream outfile("f1.txt",ios::out);
if(!outfile)
{
cerr<<" open error"<<endl;
exit(1); //退出程序
}
//----将数组存取的信息输出到文件中去----
for(i=0;i<N;i++)
{
if(i!=k)
{
outfile<<num[i]<<" ";
outfile<<name[i]<<" ";
outfile<<sex[i]<<" ";
outfile<<age[i]<<" ";
outfile<<birthday[i]<<" ";
outfile<<address[i]<<" ";
outfile<<tel[i]<<" ";
outfile<<Email[i]<<" "<<endl;
}
}
outfile.close();
N=N-1;
cout<<"已删除成功！"<<endl;
}

///修改文件

void student::change()
{
int i,k;
int num[M];
string name[M],sex[M],age[M],birthday[M],address[M],tel[M],Email[M];
ifstream infile("f1.txt",ios::in);
if(!infile)
{
cerr<<" open error"<<endl;
exit(1);
}
for(i=0;i<N;i++)
{
cout<<" ";
infile>>num[i];
cout<<setw(4)<<num[i];
infile>>name[i];
cout<<setw(7)<<name[i];
infile>>sex[i];
cout<<setw(6)<<sex[i];
infile>>age[i];
cout<<setw(6)<<age[i];
infile>>birthday[i];
cout<<setw(12)<<birthday[i];
infile>>address[i];
cout<<setw(11)<<address[i];
infile>>tel[i];
cout<<setw(14)<<tel[i];
infile>>Email[i];
cout<<setw(18)<<Email[i]<<endl;
}
infile.close();
ofstream outfile("f1.txt",ios::out);
if(!outfile)
{
cerr<<" open error"<<endl;
exit(1);
}
cout<<"您想修改第几个学生信息？"<<endl;
cin>>k;
k=k-1;
cout<<"请输入新的数据："<<endl;
cout<<"请输入姓名："<<endl;
cin>>name[k];
cout<<"请输入性别："<<endl;
cin>>sex[k];
cout<<"请输入年龄："<<endl;
cin>>age[k];
cout<<"请输入出生日期："<<endl;
cin>>birthday[k];
cout<<"请输入家庭住址："<<endl;
cin>>address[k];
cout<<"请输入电话："<<endl;
cin>>tel[k];
cout<<"请输入电子邮箱："<<endl;
cin>>Email[k];
for(i=0;i<N;i++)
{
outfile<<num[i]<<" ";
outfile<<name[i]<<" ";
outfile<<sex[i]<<" ";
outfile<<age[i]<<" ";
outfile<<birthday[i]<<" ";
outfile<<address[i]<<" ";
outfile<<tel[i]<<" ";
outfile<<Email[i]<<" "<<endl;
}
outfile.close();
cout<<"已修改成功！"<<endl;
}

///查询文件

void student::search()
{
int i,n,w=0,num[M],a[M];char ch;
string searchname, name[M],sex[M],age[M],birthday[M],address[M],tel[M],Email[M],b[M][7];
cout<<"a.按学号查找 b.按姓名查找"<<endl;
ifstream infile("f1.txt",ios::in);
if(!infile)
{
cerr<<" open error"<<endl;
exit(1);
}
for(i=0;i<N;i++)
{
infile>>num[i];a[i]=num[i];
infile>>name[i];b[i][0]=name[i];
infile>>sex[i];b[i][1]=sex[i];
infile>>age[i];b[i][2]=age[i];
infile>>birthday[i];b[i][3]=age[i];
infile>>address[i];b[i][4]=age[i];
infile>>tel[i];b[i][5]=address[i];
infile>>Email[i];b[i][6]=age[i];
}
cout<<"请输入a或者b!"<<endl;
cin>>ch;
if(ch=='a')
{
cout<<"请输入学号！"<<endl;
cin>>n;
for(i=0;i<N;i++)
if(a[i]==n)
{
w=1;
cout<<" 学号 姓名 性别 年龄 出生日期 家庭住址 电话 邮箱"<<endl;
cout<<" ";
cout<<setw(4)<<a[i];
cout<<setw(7)<<b[i][0];
cout<<setw(6)<<b[i][1];
cout<<setw(6)<<b[i][2];
cout<<setw(12)<<b[i][3];
cout<<setw(11)<<b[i][4];
cout<<setw(14)<<b[i][5];
cout<<setw(18)<<b[i][6]<<endl;
}
if(w==0)
cout<<"无此人信息！"<<endl;
}
else if(ch=='b')
{
cout<<"请输入姓名！"<<endl;
cin>>searchname;
for(i=0;i<N;i++)
if(name[i]==searchname)
{
w=1;
cout<<" 学号 姓名 性别 年龄 出生日期 家庭住址 电话 邮箱"<<endl;
cout<<setw(4)<<a[i];
cout<<setw(7)<<b[i][0];
cout<<setw(6)<<b[i][1];
cout<<setw(6)<<b[i][2];
cout<<setw(12)<<b[i][3];
cout<<setw(11)<<b[i][4];
cout<<setw(14)<<b[i][5];
cout<<setw(18)<<b[i][6]<<endl;
}
if(w==0)
cout<<"无此人信息！"<<endl;
}
else cout<<"没有此选项！"<<endl;
}

///显示文件

void student::display()
{
int k,num;
string name,sex,age,birthday,address,tel,Email;
ifstream infile("f1.txt",ios::in);
if(!infile)
{
cerr<<" 0open error"<<endl;
exit(1);
}
cout<<" 学号 姓名 性别 年龄 出生日期 家庭住址 电话 邮箱"<<endl;
for(k=0;k<N;k++)
{
cout<<" ";
infile>>num;
cout<<setw(4)<<num;
infile>>name;
cout<<setw(7)<<name;
infile>>sex;
cout<<setw(6)<<sex;
infile>>age;
cout<<setw(6)<<age;
infile>>birthday;
cout<<setw(12)<<birthday;
infile>>address;
cout<<setw(11)<<address;
infile>>tel;
cout<<setw(14)<<tel;
infile>>Email;
cout<<setw(18)<<Email<<endl;
}
infile.close();
}

student stu;
void main()
{
char ch;
void menu();
menu();
cin>>ch;
while(ch!='0')
{
system("cls");
switch(ch)
{
case '1':stu.set();break;
case '2':stu.add();break;
case '3':stu.del();break;
case '4':stu.change();break;
case '5':stu.search();break;
case '6':stu.display();break;
case '0':cout<<"退出系统!";break;
default:cout<<"没有此选项！"<<endl;break;
}
menu();
cin>>ch;
}
}

void menu()
{
cout<<"****欢迎进入学生信息管理系统****"<<endl;
cout<<"* 1.输入学生信息 *"<<endl;
cout<<"* 2.添加学生信息 *"<<endl;
cout<<"* 3.删除学生信息 *"<<endl;
cout<<"* 4.修改学生信息 *"<<endl;
cout<<"* 5.查询学生信息 *"<<endl;
cout<<"* 6.浏览全部学生信息 *"<<endl;
cout<<"* 0.退出学生信息 *"<<endl;
cout<<"********************************"<<endl;
}