C++实例员工工资系统

矫情吗；* 2023-10-06 08:41 28阅读 0赞

此章节学习了虚函数和动态联边  
用抽象类实现一下员工工资的简易系统  
代码如下：

#include<iostream.h>
     #include<string.h> 
     #include<assert.h>
      #include<iomanip.h> 
     class employee
    {
        
    public:
    employee(const long, const char*); virtual ~employee();
    const char*getname()const; const long getnumber()const; virtual double earnings()const=0; virtual void print()const;
    protected:
    long number; char*name;
    };
    
    employee::employee(const long k,const char*str)
    {
        
    number=k;
    name=new char[strlen(str)+1]; assert(name!=0); strcpy(name,str);
    }
    employee::~employee()
    {
        
    delete []name;
    }
    const char*employee::getname()const
    {
        
    return name;
    }
    const long employee::getnumber()const
    {
        
    return number ;
    }
    void employee::print()const
    {
        
    cout<<number<<setw(16)<<name<<endl;
    }
    
    class manager:public employee
    {
        
    public:
    manager(const long,const char*,double=0.0);
    ~manager(){
        };
    void setmonthsalary(double); virtual double earnings()const; virtual void print()const;
    private:
    double monthsalary;
    };
    manager::manager(const long k, const char*str,double sal):employee(k,str){
        setmonthsalary(sal);}
    
    void manager::setmonthsalary(double sal)
    {
        
    monthsalary=sal;
    }
    double manager::earnings()const
    {
        
    return monthsalary;
    }
    void manager::print()const
    {
        
    employee::print(); cout<<setw(16)<<"manager\n"; cout<<"\tearning$"<<monthsalary<<endl;
    }
    
    
    
    
    class salesmanager:public employee
    {
        
    public:
    salesmanager(const long , const char*, double=0.0,double=0.0);
    ~salesmanager(){
        } void setsalary(double); void setsales(double);
    virtual double earnings()const; virtual void print()const; protected:
    double sales; double salary;};
    salesmanager::salesmanager(const	long	k,const	char*str,double	salary1,double sales2):employee(k,str){
        setsalary(salary1);setsales(sales2);}
    void salesmanager::setsalary(double salary1)
    
    {
        
    salary=salary1;
    }
    void salesmanager::setsales(double sales2)
    {
        
    sales=sales2;
    }
    double salesmanager::earnings()const
    {
        
    return salary+0.04*sales;
    }
    void salesmanager::print()const
    {
        
    employee::print(); cout<<setw(16)<<"salesmanager\n"; cout<<"\tsalary:	$"<<sales<<endl; cout<<"\tearnings: $"<<earnings()<<endl;
    }
    
    
    
    
    class hourworker:public employee
    {
        
    public:
    hourworker(const long,const char*,double=0.0,int =0);
    ~hourworker(){
        } void sethour(int);
    void setmoney(double);
    virtual double earnings()const; virtual void print()const;
    private:
    double money; int hour;
    };
    hourworker::hourworker(const long k, const char*str,double m,int h):employee(k,str){
         setmoney(m);
    sethour(h);
    }
    void hourworker::sethour(int h)
    {
        
    hour=h;}
    void hourworker::setmoney(double m)
    {
        
    money=m;
    }
    
    double hourworker::earnings()const
    {
        
    return money*hour;
    }
    void hourworker::print()const
    {
        
    employee::print(); cout<<setw(16)<<"hourwoker\n"; cout<<"\tworkhour: "<<hour<<endl; cout<<"\tearning: $"<<earnings()<<endl;
    }
    
    
    
    
    class salesman:public employee
    {
        
    public:
    salesman(const long,const char*,double=0.0);
    ~salesman(){
        }
    void setsales(double);
    virtual double earnings()const; virtual void print()const;
    private:
    double sales;
    };
    salesman::salesman(const long k,const char* str,double s):employee(k,str){
        setsales(s);} void salesman::setsales(double s)
    {
        
    sales=s;
    }
    double salesman::earnings()const
    {
        
    return sales*0.04;
    }
    void salesman::print()const
    {
        
    employee::print(); cout<<setw(16)<<"salesman\n"; cout<<"\tsales:	"<<sales<<endl; cout<<"\tearning:	"<<earnings()<<endl;
    }
    int main()
    {
        
    manager a(61,"xiaohao",100000); a.print();
    
    salesmanager B(10,"hao",5000,10000); B.print();
    hourworker C(11,"shihao",80,5); C.print();
    salesman D(90,"shihao",5000); D.print();
    return 0;
    }