學生信息管理系統.cpp(大二上)

 

#include<iostream>

#include<fstream>

#include<string>

#include<iomanip>

#include<conio.h>

#include<windows.h>

using namespace std;

#define M 200 //能夠存信息總量

int N=0; //學生總量

class student{

public:

student();

void set(); //初始化信息，第一次對信息的錄入

void add(); //添加學生信息

void del(); //刪除某學生信息

void change(); //修改某學生信息

void search(); //查詢某學生信息

void display(); //顯示所有學生信息

private:

static int num;

string name,sex,age,birthday,address,tel,Email;

};

 

class denglu{//定義登陸密碼類

public:

denglu();//構造函數 設置帳號、初始密碼

int input();

int newpw();

private:

string id;

char password[10];

};

 

int student::num=1000;

///一、構造函數 設置帳號、初始密碼

denglu::denglu()

{

id = "100001";

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

password[i] = '1';

}

}

 

///二、密碼輸入、校驗

 

int denglu::input()

{

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

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

string id0,dl1;

cout<<"退出登陸界面請輸入「-1 」,不然輸入任意數字"<<endl;

cin>>flag;

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

//cout<<"請輸入管理員帳號，密碼：\n";

cout<<"輸入管理員帳號：";

cin>>id0;

cout<<"輸入六位數密碼：";

while((ch=getch())!='\r') {//不回顯函數。getch()函數輸入字符時不顯示出來，其餘功能同getchar()

if(ch!=8) { //不是退格(退格鍵的ASCII碼爲：8)就錄入

pw[i]=ch;

cout<<'*';//而且輸出*號

i++;

}

else {

cout<<'\b';//讓光標回退一位，下一次輸入字符時，會把光標所在位置的字符替換掉

cout<<' ';//再顯示空格符把剛纔的*給蓋住，

cout<<'\b';//而後再回撤一格等待錄入。

i--;

}

}

pw[i]='\0';

system("cls");

//判斷帳號密碼是否正確

if(id0 != id){

cout<<"\n帳號錯誤！"<<endl;

return 0;

}

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

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

cout<<"\n密碼錯誤！"<<endl;

return 0;

}

}

return 1;

}

 

///三、密碼修改

int denglu::newpw()

{

int j=0;

char c;

cout<<"\n請輸入六位新密碼：";

while((c=getch())!='\r') {//getch()函數輸入字符時不顯示出來，其餘功能同getchar()

if(c!=8) { //不是回(回退鍵的ASCII碼爲：8)就錄入

password[j]=c;

cout<<'*';//而且輸出*號

j++;

}

else {

cout<<'\b';//這裏是刪除一個，經過輸出回撤符 /b，回撤一格，

cout<<' ';//再顯示空格符把剛纔的*給蓋住，

cout<<'\b';//而後再回撤一格等待錄入。

j--;

}

}

system("cls");

cout<<"\n密碼修改爲功！"<<endl;

return 0;

}

 

student::student() {}

///四、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); //----打開文件----

if(!outfile)

{

cerr<<" open error"<<endl;

exit(1);

}

//----依次錄入相應個數的學生信息----

for(i=0;i<M;i++)

{

cout<<"當姓名輸入爲'0'時，中止輸入！！！"<<endl;

cout<<"請輸入姓名："<<endl;

cin>>setname;

name=setname;

if(setname=="0") break;

if(setname!="0")

{

N++;

num++;

outfile<<num<<" ";

outfile<<setname<<" ";

cout<<"請輸入性別："<<endl;

cin>>setsex;

sex=setsex;

outfile<<setsex<<" ";

cout<<"請輸入年齡："<<endl;

cin>>setage;

age=setage;

outfile<<setage<<" ";

cout<<"請輸入出生日期："<<endl;

cin>>setbirthday;

birthday=setbirthday;

outfile<<setbirthday<<" ";

cout<<"請輸入家庭住址："<<endl;

cin>>setaddress;

address=setaddress;

outfile<<setaddress<<" ";

cout<<"請輸入電話："<<endl;

cin>>settel;

tel=settel;

outfile<<settel<<" ";

cout<<"請輸入電子郵箱："<<endl;

cin>>setEmail;

Email=setEmail;

outfile<<setEmail<<" "<<endl;

}

}

outfile.close(); //----關閉文件----

}

 

///五、添加文件

void student::add()

{

string addname,addsex,addage,addbirthday,addaddress,addtel,addEmail;

 

//----以追加的方式錄入信息，直接將信息追加到之前文件的末尾----

ofstream outfile("f1.txt",ios::app);

if(!outfile)

{

cerr<<" open error"<<endl;

exit(1);

}

N=N+1;

//----依次輸入相應的數據，而且追加到以前的文件中去----

cout<<"請輸入您要添加的數據"<<endl;

num++;

outfile<<num<<" ";

cout<<"請輸入姓名："<<endl;

cin>>addname;

outfile<<addname<<" ";

cout<<"請輸入性別："<<endl;

cin>>addsex;

outfile<<addsex<<" ";

cout<<"請輸入年齡："<<endl;

cin>>addage;

outfile<<addage<<" ";

cout<<"請輸入出生日期："<<endl;

cin>>addbirthday;

outfile<<addbirthday<<" ";

cout<<"請輸入家庭住址："<<endl;

cin>>addaddress;

outfile<<addaddress<<" ";

cout<<"請輸入電話："<<endl;

cin>>addtel;

outfile<<addtel<<" ";

cout<<"請輸入電子郵件："<<endl;

cin>>addEmail;

outfile<<addEmail<<endl;

outfile.close();

cout<<"已添加成功！"<<endl;

}

 

///六、刪除文件

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<<"您想刪除第幾個學生信息？"<<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

}

//----將數組存取的信息輸出到文件中去----

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<<"已刪除成功！"<<endl;

}

 

///七、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<<"您想修改第幾個學生信息？"<<endl;

cin>>k;

k=k-1;

cout<<"請輸入新的數據："<<endl;

cout<<"請輸入姓名："<<endl;

cin>>name[k];

cout<<"請輸入性別："<<endl;

cin>>sex[k];

cout<<"請輸入年齡："<<endl;

cin>>age[k];

cout<<"請輸入出生日期："<<endl;

cin>>birthday[k];

cout<<"請輸入家庭住址："<<endl;

cin>>address[k];

cout<<"請輸入電話："<<endl;

cin>>tel[k];

cout<<"請輸入電子郵箱："<<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<<"已修改爲功！"<<endl;

}

 

///八、查詢文件

 

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.按學號查找 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<<"請輸入a或者b!"<<endl;

cin>>ch;

if(ch=='a')

{

cout<<"請輸入學號！"<<endl;

cin>>n;

for(i=0;i<N;i++)

if(a[i]==n)

{

w=1;

cout<<" 學號 姓名 性別 年齡 出生日期 家庭住址 電話 郵箱"<<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<<"無此人信息！"<<endl;

}

else if(ch=='b')

{

cout<<"請輸入姓名！"<<endl;

cin>>searchname;

for(i=0;i<N;i++)

if(name[i]==searchname)

{

w=1;

cout<<" 學號 姓名 性別 年齡 出生日期 家庭住址 電話 郵箱"<<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<<"無此人信息！"<<endl;

}

else cout<<"沒有此選項！"<<endl;

}

 

///九、顯示文件

 

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<<" 學號 姓名 性別 年齡 出生日期 家庭住址 電話 郵箱"<<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;

 

///十、菜單

 

void menu()

{

cout<<"\n\t\t\t**************歡迎進入學生信息管理系統*******************"<<endl;

cout<<"\t\t\t* 1.輸入學生信息 *"<<endl;

cout<<"\t\t\t* 2.添加學生信息 *"<<endl;

cout<<"\t\t\t* 3.刪除學生信息 *"<<endl;

cout<<"\t\t\t* 4.修改學生信息 *"<<endl;

cout<<"\t\t\t* 5.查詢學生信息 *"<<endl;

cout<<"\t\t\t* 6.瀏覽所有學生信息 *"<<endl;

cout<<"\t\t\t* 7.修改密碼 *"<<endl;

cout<<"\t\t\t* 0.退出學生信息 *"<<endl;

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

}

 

///十一、主函數

 

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<<"退出系統!";break;

default:cout<<"沒有此選項！"<<endl;break;

}

menu();

cin>>ch;

}

system("cls");

f = dl.input();

}

return 0;

}