学生信息管理系统.cpp(大二上)

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#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;
}

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