学生信息管理系统.cpp(大二上)

 

#include<iostream>

#include<fstream>

#include<string>

#include<iomanip>

#include<conio.h>

#include<windows.h>

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;

};

 

class denglu{//定义登录密码类

public:

denglu();//构造函数 设置账号、初始密码

int input();

int newpw();

private:

string id;

char password[10];

};

 

int student::num=1000;

///1、构造函数 设置账号、初始密码

denglu::denglu()

{

id = "100001";

for(int i=0;i<6;i++){

password[i] = '1';

}

}

 

///2、密码输入、校验

 

int denglu::input()

{

int i=0,j=0,t,flag=1;

char ch,pw[10],a[10];

string id0,dl1;

cout<<"退出登录界面请输入“-1 ”,否则输入任意数字"<<endl;

cin>>flag;

if(flag == -1) exit(0);

//cout<<"请输入管理员账号，密码：\n";

cout<<"输入管理员账号：";

cin>>id0;

cout<<"输入六位数密码：";

while((ch=getch())!='\r') {//不回显函数。getch()函数输入字符时不显示出来，其他功能同getchar()

if(ch!=8) { //不是退格(退格键的ascii码为：8)就录入

pw[i]=ch;

cout<<'*';//并且输出*号

i++;

}

else {

cout<<'\b';//让光标回退一位，下一次输入字符时，会把光标所在位置的字符替换掉

cout<<' ';//再显示空格符把刚才的*给盖住，

cout<<'\b';//然后再回撤一格等待录入。

i--;

}

}

pw[i]='\0';

system("cls");

//判断账号密码是否正确

if(id0 != id){

cout<<"\n账号错误！"<<endl;

return 0;

}

for(i=0;i<6;i++){

if(pw[i] != password[i]){

cout<<"\n密码错误！"<<endl;

return 0;

}

}

return 1;

}

 

///3、密码修改

int denglu::newpw()

{

int j=0;

char c;

cout<<"\n请输入六位新密码：";

while((c=getch())!='\r') {//getch()函数输入字符时不显示出来，其他功能同getchar()

if(c!=8) { //不是回(回退键的ascii码为：8)就录入

password[j]=c;

cout<<'*';//并且输出*号

j++;

}

else {

cout<<'\b';//这里是删除一个，通过输出回撤符 /b，回撤一格，

cout<<' ';//再显示空格符把刚才的*给盖住，

cout<<'\b';//然后再回撤一格等待录入。

j--;

}

}

system("cls");

cout<<"\n密码修改成功！"<<endl;

return 0;

}

 

student::student() {}

///4、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----

}

 

///5、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;

}

 

///6、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;

}

 

///7、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;

}

 

///8、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;

}

 

///9、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;

denglu dl;

 

///10、菜单

 

void menu()

{

cout<<"\n\t\t\t**************欢迎进入学生信息管理系统*******************"<<endl;

cout<<"\t\t\t* 1.输入学生信息 *"<<endl;

cout<<"\t\t\t* 2.添加学生信息 *"<<endl;

cout<<"\t\t\t* 3.删除学生信息 *"<<endl;

cout<<"\t\t\t* 4.修改学生信息 *"<<endl;

cout<<"\t\t\t* 5.查询学生信息 *"<<endl;

cout<<"\t\t\t* 6.浏览全部学生信息 *"<<endl;

cout<<"\t\t\t* 7.修改密码 *"<<endl;

cout<<"\t\t\t* 0.退出学生信息 *"<<endl;

cout<<"\t\t\t*********************************************************"<<endl;

}

 

///11、主函数

 

int main()

{

char ch='1';

int f;

while(1){

f = dl.input();

if(f==1) break;

}

 

while(f || ch!='0'){

system("color 1f");

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 '7':dl.newpw();break;

case '0':cout<<"退出系统!";break;

default:cout<<"没有此选项！"<<endl;break;

}

menu();

cin>>ch;

}

system("cls");

f = dl.input();

}

return 0;

}