//职工信息管理
// BCB6下通过
#include <iostream>
using namespace std;
typedef enum{m=1, f} gender;
typedef enum{none, salesman, technician, salesmanager, manager} position;
typedef float RMB;
class Employee
{
public:
Employee(int n, string nm, int yr, gender sx)
:num(n),name(nm),age(yr),sex(sx),salary(0), rank(1),pos(none){ }
virtual void Print()
{
cout<<num<<" "<<name<<" "<<age<<" "<<((sex==1) "male":"female")<<" "<<rank<<"级 薪水"<<salary<<" 职务 ";
ShowPos();
}
void SetPos(position ps){pos=ps;}
void ShowPos()
{
switch (pos)
{
case salesman: cout<<"salesman"; break;
case technician: cout<<"technician"; break;
case salesmanager: cout<<"salesmanager"; break;
case manager: cout<<"manager";break;
case none: cout<<"none"; break;
}
cout<<endl;
}
virtual RMB Payment(){ return salary=0;};
protected:
int num;
string name;
int age;
gender sex;
position pos;
int rank;
RMB salary;
};
class Salesman: virtual public Employee
{
public:
Salesman(int n, string nm, int yr, gender sx)
:Employee(n, nm, yr, sx)
{Employee::SetPos(salesman); Prompt();}
Salesman(Employee &emp):Employee(emp)
{Employee::SetPos(salesman); Prompt();}
virtual RMB Payment(){ return salary=004sales;} //调用该函数设置薪水salary,并可返回值
void Prompt();
protected:
RMB sales; //销往额,子类对象特有的属性
};
void Salesman::Prompt()
{
cout<<"Num: "<<num<<" "<<name<<endl;
cout<<"请输入销售额: ";
cin>> sales;
Payment();
cout<<endl;
}
class Manager:virtual public Employee
{
public:
Manager(int n, string nm, int yr, gender sx)
:Employee(n, nm, yr, sx)
{SetPos(manager); rank=4; salary=8000;}
Manager(Employee &emp):Employee(emp)
{Employee::SetPos(manager);rank=4; salary=8000;}
};
class SalesManager: public Manager, public Salesman
{
public:
SalesManager(int n, string nm, int yr, gender sx)
: Employee(n, nm, yr, sx),Manager(n, nm, yr, sx), Salesman(n, nm, yr, sx)
{pos=salesmanager; rank=3; Payment();}
SalesManager(Employee &emp):Employee(emp),Manager(emp),Salesman(emp){pos=salesmanager; rank=3; Payment();}
virtual RMB Payment(){ return salary=5000+ 0005sales;} //调用该函数设置薪水salary,并可返回值
};
class Technician: public Employee
{
public:
Technician(int n, string nm, int yr, gender sx)
:Employee(n, nm, yr, sx)
{Employee::SetPos(technician); rank=2; Prompt();}
Technician(Employee &emp):Employee(emp)
{ Employee::SetPos(technician); rank=2; Prompt();}
virtual RMB Payment(){ return salary=100work_hours;} //调用该函数设置薪水salary,并可返回值
void Prompt()
{
cout<<"Num: "<<num<<" "<<name<<endl;
cout<<"请输入工作小时数: ";
cin>> work_hours;
Payment();
cout<<endl;
}
private:
int work_hours; //工作小时数,子类对象特有的属性
};
int main(void )
{
const int N=4;
cout<<"测试一:"<<endl;
Salesman wang(101,"wang",30,f);
Technician Li(102,"Li", 25,m);
SalesManager Sman(105, "Sman", 40, f);
wangPrint();
LiPrint();
SmanPrint();
Employee empl[N]; //基类对象指针的数组
cout<<endl;
cout<<"测试二:"<<endl;
cout<<"请输入职员信息: 姓名(字母) 年龄 性别(m/f) 回车"<< endl;
for (int i=0; i<N; ++i)
{
string name;
int age;
char x;
gender sex;
cin>>name; cin>>age; cin>>x;
if (x=='m') sex=m;
else sex=f;
empl[i]=new Employee(1001+i, name, age, sex); //生成基类对象
empl[i]->Print();
cinclear();
std::string t;
std::getline(cin,t); //将当前行从缓存中取出
}
cout<<endl;
cout<<"指派职务,1salesman,2technician,3manager,4salesmanager"<<endl;
cout<<"请键入数字"<< endl;
int pos;
for (int i=0; i<N; ++i)
{
empl[i]->Print();
cout<<"职务: ";
cin>>pos;
cinclear();
string t;
getline(cin,t);
Employee ptnew; //基类指针
switch (pos) //根据指派的职务产生相应的子类对象
{
case 1:
ptnew=new Salesman(empl[i]); break; //基类指针指向子类对象
case 2:
ptnew=new Technician(empl[i]); break;
case 3:
ptnew=new Manager(empl[i]); break;
case 4:
ptnew=new SalesManager(empl[i]); break;
}
delete empl[i]; //释放原来的基类对象所用的内存
empl[i]=ptnew; //使原来的基类指针指向新的子类对象
}
for (int i=0; i<N; ++i)
empl[i]->Print(); //显示指派职务之后的各子类对象的属性
system("pause");
return 0;
}
#include
#include
#include
using namespace std;
typedef struct student {
unsigned m_id;
string m_name;
unsigned m_age;
string m_sex;
string m_address;
string m_contact;
string m_dormitory;
struct student m_next;
}student;
class CStudent {
private :
student head;
public :
CStudent() {
head = new student;
head->m_id = 0;
head->m_name = "noname";
head->m_next = NULL;
}
~CStudent() {
student p = head,q;
while(p) {
q = p;
p = q->m_next;
delete q;
}
}
student readdata(int model); // model = 1:不读取学号，2:不读取姓名，其他，读取所有信息
void entering();
bool insert(const student &astu);
student findid(unsigned id) const;
student findname(const string &name) const;
student findsex(const string &sex) const;
student finddormitory(const string &dormitory) const;
unsigned boys() const;
unsigned girls() const;
unsigned headcount() const;
bool eraseid();
bool erasename();
bool modifyid();
bool modifyname();
void Show() const;
void query() const;
void friend statistics(const CStudent &aclss);
void friend erase(CStudent &aclss);
void friend modify(CStudent &aclss);
};
string readstring() {
string str;
while(cinget() != '\n');
cin >> str;
return str;
}
student CStudent::readdata(int model) {
student tmp;
if(model != 1) { cout < "学 号: "; cin >> tmpm_id; }
if(model != 2) { cout << "姓 名: "; tmpm_name = readstring(); }
cin >> tmpm_age;
cout << "性 别: ";
tmpm_sex = readstring();
cout << "住 址: ";
tmpm_address = readstring();
cout << "****: ";
tmpm_contact =readstring();
cout << "寝 室: ";
tmpm_dormitory = readstring();
return tmp;
}
void CStudent::entering() {
student tmp;
cout << "学号(0 to return): ";
cin >> tmpm_id;
while(tmpm_id) {
if(findid(tmpm_id) == NULL) {
cout << "姓 名: ";
tmpm_name = readstring();
cout << "年 龄: ";
cin >> tmpm_age;
cout << "性 别: ";
tmpm_sex = readstring();
cout << "住 址: ";
tmpm_address = readstring();
cout << "****: ";
tmpm_contact = readstring();
cout << "寝 室: ";
tmpm_dormitory = readstring();
insert(tmp);
}
else cout << "重复的学号:" << tmpm_id << endl;
cout << "学号(0 to return): ";
cin >> tmpm_id;
}
}
student CStudent::findid(unsigned id) const {
student p;
for(p = head; p->m_next; p = p->m_next)
if(p->m_next->m_id == id) return p;
return NULL;
}
student CStudent::findname(const string &name) const {
student p;
for(p = head; p->m_next; p = p->m_next)
if(p->m_next->m_name == name) return p;
return NULL;
}
student CStudent::findsex(const string &sex) const {
student p;
for(p = head; p->m_next; p = p->m_next)
if(p->m_next->m_sex == sex) return p;
return NULL;
}
student CStudent::finddormitory(const string &dormitory) const {
student p;
for(p = head; p->m_next; p = p->m_next)
if(p->m_next->m_dormitory == dormitory) return p;
return NULL;
}
bool CStudent::insert(const student &astu) {
student newnode,p = head;
if(p->m_next == NULL) {
p->m_next = new student(astu);
p->m_next->m_next = NULL;
return true;
}
while(p->m_next) {
if(p->m_next->m_id == astum_id) {
cout << "重复的学号，插入失败!\n";
return false;
}
if(p->m_next->m_id > astum_id) {
newnode = new student(astu);
newnode->m_next = p->m_next;
p->m_next = newnode;
return true;
}
p = p->m_next;
}
p->m_next = new student(astu);
p->m_next->m_next = NULL;
return true;
}
unsigned CStudent::boys() const {
unsigned cnt = 0;
student p;
for(p = head->m_next; p; p = p->m_next)
if(p->m_sex == "男") ++cnt;
return cnt;
}
unsigned CStudent::girls() const {
unsigned cnt = 0;
student p;
for(p = head->m_next; p; p = p->m_next)
if(p->m_sex == "女") ++cnt;
return cnt;
}
unsigned CStudent::headcount() const {
unsigned cnt = 0;
student p;
for(p = head->m_next; p; p = p->m_next,++cnt);
return cnt;
}
bool CStudent::eraseid() {
student q,p;
unsigned id;
cout << "输入要删除的学号:";
cin >> id;
p = findid(id);
if(p == NULL) {
cout << "没有找到学号是\"" << id << "\"的学生，删除失败!\n";
return false;
}
q = p->m_next;
p->m_next = q->m_next;
delete q;
return true;
}
bool CStudent::erasename() {
student q,p;
string name;
cout << "输入要删除人的姓名:";
name = readstring();
p = findname(name);
if(p == NULL) {
cout << "没有找到姓名是\"" << name << "\"的学生，删除失败!\n";
return false;
}
q = p->m_next;
p->m_next = q->m_next;
delete q;
return true;
}
bool CStudent::modifyid() {
student tmp,p;
unsigned id;
cout << "输入要修改的学号:";
cin >> id;
p = findid(id);
if(p == NULL) {
cout << "没有找到学号是\"" << id << "\"的学生，修改失败!\n";
return false;
}
tmp = readdata(1);
tmpm_id = id;
p = tmp;
return true;
}
bool CStudent::modifyname() {
student p,tmp;
string name;
cout << "输入要修改人的姓名:";
name = readstring();
p = findname(name);
if(p == NULL) {
cout << "没有找到姓名是\"" << name << "\"的学生，修改失败!\n";
return false;
}
tmp = readdata(2);
tmpm_name = name;
p = tmp;
return true;
}
int menu() {
int choice;
do {
system("cls");
cout << "\t\n";
cout << "\t 学生基本信息管理系统 \n";
cout << "\t==========================\n";
cout << "\t 1、录入学生信息 \n";
cout << "\t 2、显示学生信息 \n";
cout << "\t 3、查询学生信息 \n";
cout << "\t 4、添加学生信息 \n";
cout << "\t 5、统计学生信息 \n";
cout << "\t 6、删除学生信息 \n";
cout << "\t 7、修改学生信息 \n";
cout << "\t 0、退出管理系统 \n";
cout << "\t\n";
cout << "\n\t请选择:";
cin >> choice;
}while(choice 0 || choice > 7);
return choice;
}
void show(student p) {
cout < p->m_id << " " < p->m_name << " " < p->m_age << " ";
cout < p->m_sex << " " < p->m_address << " ";
cout < p->m_contact << " " < p->m_dormitory << endl;
}
void CStudent::Show() const {
student p;
cout << "----------------------------------------------------------\n";
for(p = head->m_next; p; p = p->m_next) show(p);
cout << "----------------------------------------------------------\n";
system("pause");
}
void CStudent::query() const {
int select;
unsigned id;
string name;
student p;
cout << "1、按学号查询\n2、按姓名查询\n0、返回\n";
cin >> select;
switch(select) {
case 1 : cout < "请输入学号:"; cin >> id;
if(p = findid(id)) show(p->m_next);
break;
case 2 : cout << "请输入姓名:"; name = readstring();
if(p = findname(name)) show(p->m_next);
break;
case 0 : return;
default : cout << "选择错误。\n";
}
system("pause");
}
void statistics(const CStudent &a) {
unsigned total = aheadcount();
unsigned boys = aboys();
unsigned girls = agirls();
cout << "学生总数:" << total << "人。\n";
cout << "其中，男生:" << boys << "名。";
cout << "女生:" << girls << "名。\n";
system("pause");
}
void erase(CStudent &a) {
int select;
unsigned id;
string name;
student p,q;
cout << "1、按学号删除\n2、按姓名删除\n0、返回\n";
cin >> select;
switch(select) {
case 1 : cout < "请输入学号:"; cin >> id;
if(p = afindid(id)) {
q = p->m_next;
p->m_next = q->m_next;
delete q;
cout << "成功删除 " << id << " 的信息。\n";
}
break;
case 2 : cout << "请输入姓名:"; name = readstring();
if(p = afindname(name)) {
q = p->m_next;
p->m_next = q->m_next;
delete q;
cout << "成功删除 " << name << " 的信息。\n";
}
break;
case 0 : return;
default : cout << "选择错误。\n";
}
system("pause");
}
void modify(CStudent &a) {
int select;
cout << "1、按学号修改\n2、按姓名修改\n0、返回\n";
cin >> select;
switch(select) {
case 1 : if(amodifyid()) cout << "修改成功。\n"; break;
case 2 : if(amodifyname()) cout << "修改成功。\n"; break;
case 0 : return;
default : cout << "选择错误。\n";
}
system("pause");
}
int main() {
CStudent a;
int an;
do {
an = menu();
switch(an) {
case 1 : aentering(); break;
case 2 : aShow(); break;
case 3 : aquery(); break;
case 4 : aentering(); break;
case 5 : statistics(a); break;
case 6 : erase(a); break;
case 7 : modify(a); break;
case 0 : break;
default : cout << "选择错误。\n"; break;
}
}while(an);
return 0;
}
#include <iostream>
#include <iomanip>
#include <string>
#include <fstream>//输入/输出文件流类
using namespace std;
const int Maxr=100;//最多的读者
const int Maxb=100;//最多的图书
const int Maxbor=5;//每位读者最多借五本书
//读者类,实现对读者的信息的描述
class Reader
{
private:
int tag; //删除标记 1:已删 0:未删
int no; //读者编号
char name[10]; //读者姓名
int borbook[Maxbor];//所借图书
public:
Reader() {}
char getname() {return name;} //获取姓名
int gettag() {return tag;} //获取删除标记
int getno() {return no;} //获取读者编号
void setname(char na[]) //设置姓名
{
strcpy(name,na);
}
void delbook(){ tag=1; }//设置删除标记 1:已删 0:未删
void addreader(int n,char na)//增加读者
{
tag=0;
no=n;
strcpy(name,na);
for(int i=0;i<Maxbor;i++)
borbook[i]=0;
}
void borrowbook(int bookid)//借书 *** 作
{
for(int i=0;i<Maxbor;i++)
{
if (borbook[i]==0)
{
borbook[i]=bookid;
return;
}
}
}
int retbook(int bookid)//还书 *** 作
{
for(int i=0;i<Maxbor;i++)
{
if(borbook[i]==bookid)
{
borbook[i]=0;
return 1;
}
}
return 0;
}
void disp()//读出读者信息
{
cout << setw(5) << no <<setw(10) << name<<"借书编号：[";
for(int i=0;i<Maxbor;i++)
if(borbook[i]!=0)
cout << borbook[i] << "|";
cout << "]"<<endl;
}
};
//读者类库，实现建立读者的个人资料
class RDatabase
{
private:
int top; //读者记录指针
Reader read[Maxr];//读者记录
public:
RDatabase() //构造函数，将readertxt读到read[]中
{
Reader s;
top=-1;
fstream file("readertxt",ios::in);//打开一个输入文件
while (1)
{
fileread((char )&s,sizeof(s));
if (!file)break;
top++;
read[top]=s;
}
fileclose(); //关闭 readertxt
}
void clear()//删除所有读者信息
{
top=-1;
}
int addreader(int n,char na)//添加读者时先查找是否存在
{
Reader p=query(n);
if (p==NULL)
{
top++;
read[top]addreader(n,na);
return 1;
}
return 0;
}
Reader query(int readerid)//按编号查找
{
for (int i=0;i<=top;i++)
if (read[i]getno()==readerid &&
read[i]gettag()==0)
{
return &read[i];
}
return NULL;
}
void disp() //输出所有读者信息
{
for (int i=0;i<=top;i++)
read[i]disp();
}
void readerdata();//读者库维护
~RDatabase() //析构函数，将read[]写到readertxt文件中
{
fstream file("readertxt",ios::out);
for (int i=0;i<=top;i++)
if (read[i]gettag()==0)
filewrite((char )&read[i],sizeof(read[i]));
fileclose();
}
};
void RDatabase::readerdata()
{
char choice;
char rname[20];
int readerid;
Reader r;
while (choice!='0')
{
cout <<"\n\n\t\t\t读 者 维 护\n\n\n\t\t 1 新 增\n\n\t\t 2 更 改\n\n\t\t 3 删 除\n\n\t\t 4 查 找\n\n\t\t 5 显 示\n\n\t\t 6 全 删\n\n\t\t 0 退 出"<<endl;
cin >> choice;
switch (choice)
{
case '1':
cout << "输入读者编号:";
cin >> readerid;
cout << "输入读者姓名:";
cin >> rname;
addreader (readerid,rname);
break;
case '2':
cout << "输入读者编号:";
cin >> readerid;
r=query(readerid);
if (r==NULL)
{
cout << " 该读者不存在 "<<endl;
break;
}
cout << "输入新的姓名:";
cin >> rname;
r->setname(rname);
break;
case '3':
cout << " 输入读者编号:";
cin >> readerid;
r=query(readerid);
if (r==NULL)
{
cout <<" 该读者不存在" << endl;
break;
}
r->delbook();
break;
case '4':
cout << "读入读者编号:";
cin >> readerid;
r=query(readerid);
if (r==NULL)
{
cout <<"该读者不存在"<< endl;
break;
}
r->disp();
break;
case '5':
disp();
break;
case '6':
clear();
break;
default:cout<<"输入错误，请从新输入：";break;
}
}
}
//图书类，实现对图书的描述，图书的编号，书名，借出，还入等
class Book
{
private:
int tag;//删除标记 1:已删 0:未删
int no;//图书编号
char name[20];//书名
int onshelf;//是否再架 1:再架 2:已借
public:
Book(){}
char getname() { return name; }//获取姓名
int getno(){ return no; }//获取图书编号
int gettag(){ return tag; }//获取删除标记
void setname(char na[])//设置书名
{
strcpy(name,na);
}
void delbook(){ tag=1;}//删除图书
void addbook(int n,char na)//增加图书
{
tag=0;
no=n;
strcpy(name,na);
onshelf=1;
}
int borrowbook()//借书 *** 作
{
if (onshelf==1)
{
onshelf=0;
return 1;
}
return 0;
}
void retbook()//还书 *** 作
{
onshelf=1;
}
void disp()//输出图书
{
cout << setw(6) << no << setw(18) << name << setw(10)
<<(onshelf==1 "在架":"已借") <<endl;
}
};
//图书库类，实现对图书的维护，查找，删除等
class BDatabase
{
private:
int top; //图书记录指针
Book book[Maxb]; //图书记录
public:
BDatabase()//构造函数，将booktxt读到book[]中
{
Book b;
top=-1;
fstream file("booktxt",ios::in);
while (1)
{
fileread((char )&b,sizeof(b));
if (!file) break;
top++;
book[top]=b;
}
fileclose();
}
void clear()//全删
{
top=-1;
}
int addbook(int n,char na)//增加图书
{
Book p=query(n);
if (NULL==p)
{
top++;
book[top]addbook(n,na);
return 1;
}
return 0;
}
Book query(int bookid)//查找图书
{
for (int i=0;i<=top;i++)
if (book[i]getno()==bookid &&book[i]gettag()==0)
{
return &book[i];
}
return NULL;
}
void bookdata();//图书库维护
void disp()
{
for (int i=0;i<=top;i++)
if (book[i]gettag()==0)
book[i]disp();
}
~BDatabase()//析构函数，将book[]写到booktxt文件中
{
fstream file("booktxt",ios::out);
for (int i=0;i<=top;i++)
if (book[i]gettag()==0)
filewrite((char )&book[i],sizeof(book[i]));
fileclose();
}
};
void BDatabase::bookdata()
{
char choice;
char bname[40];
int bookid;
Book b;
while (choice!='0')
{
cout <<"\n\n\n\t\t\t图 书 维 护 "<<endl<<endl;
cout<<"\t\t1 新 增\n \t\t2 更 改\n\t\t3 删 除\n\t\t4 查 找\n\t\t5 显 示\n\t\t6 全 删\n\t\t0 退 出"<<endl;
cin >> choice;
switch (choice)
{
case '1':
cout << "输入图书编号:"<<endl;
cin >> bookid;
cout << "输入图书书名:"<<endl;
cin >> bname;
addbook(bookid,bname);
break;
case '2':
cout << "输入图书编号:"<<endl;
cin >> bookid;
b=query(bookid);
if (b==NULL)
{
cout << " 该图书不存在 "<<endl;
break;
}
cout << "输入新的书名:"<<endl;
cin >> bname;
b->setname(bname);
break;
case '3':
cout <<" 读入图书编号:"<<endl;
cin >> bookid;
b=query(bookid);
if (b==NULL)
{
cout <<" 该图书不存在" << endl;
break;
}
b->delbook();
break;
case '4':
cout << " 读入图书编号:"<<endl;
cin >> bookid;
b=query(bookid);
if (b==NULL)
{
cout <<" 该图书不存在"<< endl;
break;
}
b->disp();
break;
case '5':
disp();
break;
case '6':
clear();
break;
default:cout<<"输入错误，请从新输入:";
}
}
}
//main() 函数的实现，程序的主界面的引导
void main()
{
char choice;
int bookid,readerid;
RDatabase ReaderDB;
Reader r;
BDatabase BookDB;
Book b;
while(choice!='0')
{
cout <<endl<<endl<<"\t\t\t 图 书 管 理 系 统\n\n\n";
cout <<"\t\t\t1 借 书\n\n\t\t\t2 还 书 \n\n\t\t\t3 图 书 维 护\n\n\t\t\t4 读 者 维 护\n\n\t\t\t0 离 开"<<endl;
cin >> choice;
switch (choice)
{
case '1':
cout <<" 借书 读者编号:";
cin >>readerid;
cout <<" 图书编号： ";
cin >>bookid;
r=ReaderDBquery(readerid);//按编号查找
if (NULL==r)
{
cout <<" 不存在该读者，不能借书"<< endl;
break;
}
b=BookDBquery(bookid);
if (b==NULL)
{
cout <<" 不存在该图书，不能借书"<< endl;
break;
}
if (b->borrowbook()==0)
{
cout << " 该图书已借出，不能借书"<< endl;
break;
}
r->borrowbook(b->getno());
break;
case '2':
cout<<"还书\n 读者编号:";
cin >>readerid;
cout << " 图书编号:";
cin >>bookid;
r=ReaderDBquery(readerid);
if (r==NULL)
{
cout <<" 不存在该读者，不能还书" << endl;
break;
}
b=BookDBquery(bookid);
if (b==NULL)
{
cout <<" 不存在该图书，不能还书" <<endl;
break;
}
b->retbook();
r->retbook(b->getno());
break;
case '3':
BookDBbookdata();
break;
case '4':
ReaderDBreaderdata();
break;
default:cout<<"输入错误，请从新输入：";
}
}
}
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