類的定義(總結)

定義類employee，要求包含數(shù)據(jù)成員：name和salary，name要求用于存儲職工的姓名，salary用于存儲職工的工資，定義對應的默認構造函數(shù)，析構函數(shù)和賦值運算符，并定義類的對象a和b，要求b使用a進行賦值（即，b調用賦值運算符函數(shù)將對象a的值賦給b）。要求：默認構造函數(shù)、析構函數(shù)和賦值運算符中都需要加入輸出語句#include<iostream>usingnamespacestd;classEmployee{private: charname[80]; intsalary;public: Employee(char*s="",inta=0) { cout<<"Employee(char*s="",inta=0)"<<endl; strcpy(name,s); salary=a; } ~Employee() { cout<<"called~Employee()"<<endl; } Employee&Employee::operator=(constEmployee&r) { cout<<"Employee&Employee::operator=(constEmployee&r)"<<endl; strcpy(name,); salary=r.salary; return*this; } voidprint() { cout<<"name:"<<name<<""<<"salary:"<<salary<<endl; }};voidmain(){ Employeea("jom",20),b; a.print(); b=a; b.print();}在前一題的基礎上定義company類，要求將employee的對象作為該類的數(shù)據(jù)成員，另外，company還包含一個數(shù)據(jù)成員name，用于存儲公司的名稱，定義對應的默認構造函數(shù)和析構函數(shù)，并且在主程序中定義company類的對象c，觀察對象c的創(chuàng)建過程和析構過程。要求：默認構造函數(shù)、析構函數(shù)和賦值運算符中都需要加入輸出語句#include<iostream>usingnamespacestd;classEmployee{private: charname[80]; intsalary;public: Employee(char*s="",inta=0) { cout<<"Employee(char*s="",inta=0)"<<endl; strcpy(name,s); salary=a; } ~Employee() { cout<<"called~Employee()"<<endl; } Employee&operator=(constEmployee&r) { cout<<"Employee&Employee::operator=(constEmployee&r)"<<endl; strcpy(name,); salary=r.salary; return*this; } voidprint() { cout<<name<<""<<salary<<endl; }};classCompany{ Employeep; charname[80];public: Company(Employeeq,char*m=""):p(q) { cout<<"Company(Employeeq,char*m=""):p(q)"<<endl; strcpy(name,m); } ~Company() { cout<<" ~Company()"<<endl; } voidprint() { p.print(); cout<<name<<endl; }};voidmain(){ Employeea("zhoudong",3200),b; a.print(); b=a; b.print(); Companyc(b,"apple"); c.print()；｝定義類fact，包含一個數(shù)據(jù)成員n，以及兩個數(shù)據(jù)函數(shù)factn（）和factsum（），factn（）用于計算n!的值，而factsum（）用于計算1!+2!+3!+……+n!的值，并將各個計算結果返回，要求在主函數(shù)中定義兩個對象a(3)和b(5)，調用相應的數(shù)據(jù)成員，并將計算結果輸出#include<iostream>usingnamespacestd;classfact{ intn;public: fact(inta) { n=a; } intfactn() { cout<<"calledintfactn()"<<endl; intj=1; for(inti=1;i<=n;i++) { j*=i; } returnj;} intfactsum() { cout<<"calledintfactsum()"<<endl; intj=1,sum=0; for(inti=1;i<=n;i++) { j*=i; sum=sum+j; } returnsum;} voidPri