《C++面向对象程序设计答案》第五章谭浩强清华大学出版社.docx

1、C+面向对象程序设计答案第五章谭浩强清华大学出版社1:#include using namespace std;class Studentpublic:void get_value()cinnumnamesex;void display( )coutnum: numendl;coutname: nameendl;coutsex: sexageaddr;void display_1() coutage: ageendl; / 引用派生类的私有成员，正确。coutaddress: addrendl; /引用派生类的私有成员，正确。private:int age;char addr30;int ma

2、in()Student1 stud1; stud1.get_value_1();stud1.display();stud1.display_1();return 0;2:#include using namespace std;class Studentpublic:void get_value()cinnumnamesex;void display( )coutnum: numendl; coutname: nameendl;coutsex: sexageaddr;void display_1()display();coutage: ageendl; /引用派生类的私有成员，正确。couta

3、ddress: addrendl; /引用派生类的私有成员，正确。private:int age;char addr30;int main()Student1 stud1; stud1.get_value_1(); stud1.display_1(); return 0;3:#include using namespace std;class Student /声明基类public: /基类公用成员void get_value();void display( );protected : / 基类保护成员int num;char name10;char sex;void Student:get_

4、value()cinnumnamesex;void Student:display( )coutnum: numendl; coutname: nameendl; coutsex: sexageaddr;void Student1:display1( )coutnum: numendl; coutname: nameendl; coutsex: sexendl; coutage: ageendl; coutaddress: addrendl;int main( )Student1 stud1; stud1.get_value_1(); stud1.display1( );return 0;4:

5、 解法一/声明一个保护派生类/ 引用基类的保护成员/ 引用基类的保护成员 /引用基类的保护成员 / 引用派生类的私有成员 /引用派生类的私有成员/stud1 是派生类 student1 类的对象/ 调用派生类对象 stud1 的公用成员函数 /调用派生类对象 stud1 的公用成员函数#include using namespace std;class Student /声明基类public: /基类公用成员void get_value();void display( );protected : / 基类保护成员int num;char name10;char sex;void Student

6、:get_value()cinnumnamesex;void Student:display( )coutnum: numendl; coutname: nameendl; coutsex: sexageaddr;/ 引用基类的保护成员，合法/ 引用基类的保护成员，合法 /引用基类的保护成员，合法 / 引用派生类的私有成员，合法 /引用派生类的私有成员，合法void Student1:display1( )coutnum: numendl; coutname: nameendl; coutsex: sexendl; coutage: ageendl; coutaddress: addrendl

7、;int main( )Student1 stud1; stud1.get_value_1();get_value_1 stud1.display1( ); return 0;解法二#include using namespace std;/stud1 是派生类 student1 类的对象/ 调用派生类对象 stud1 的公用成员函数/调用派生类对象 stud1 的公用成员函数 display1class Studentpublic:void get_value();void display( );protected : int num; char name10; char sex;void

8、Student:get_value() cinnumnamesex;void Student:display( ) coutnum: numendl;coutname:nameendl; coutsex:sexageaddr;void Student1:display1( ) coutage:ageendl;coutaddress:addrendl; int main( )Student1 stud1; stud1.get_value(); stud1.get_value_1(); stud1.display( ); stud1.display1(); return 0;/声明基类/基类公用成

9、员/基类保护成员/声明一个公用派生类/stud1 是派生类 student1 类的对象/合法。display1 是派生类中的公用成员函数5： class A public:void f1( ); int i;protected: void f2(); int j;private:int k;class B: public A public:void f3( ); protected: int m;private:int n;/A 为基类/B 为 A 的公用派生类class C: public B public:void f4(); private:int p;/C 为B 的公用派生类int m

10、ain()A a1;B b1;C c1;return 0;6：#include using namespace std; class Apublic:void f1( ); protected:void f2();private:int i;/a1 是基类 A 的对象/b1 是派生类B 的对象/c1 是派生类C的对象;class B: public Apublic:void f3( );int k;private:int m;class C: protected B public:void f4();protected:int n;private:int p;class D: private

11、Cpublic:void f5();protected:int q;private:int r;int main()A a1;B b1;C c1;D d1;return 0;7：#include using namespace std; class Apublic:A()a=0;b=0;A(int i)a=i;b=0;A(int i,int j)a=i;b=j;void display()couta=a b=b; private:int a;int b;class B : public Apublic:B()c=0;B(int i):A(i)c=0;B(int i,int j):A(i,j)c

12、=0;B(int i,int j,int k):A(i,j)c=k;void display1()display();cout c=cendl;private:int c;int main() B b1;B b2(1);B b3(1,3);B b4(1,3,5);b1.display1();b2.display1();b3.display1();b4.display1();return 0;8：#include using namespace std;class Apublic:A()coutconstructing A endl; A()coutdestructing A endl; ;cl

13、ass B : public Apublic:B()coutconstructing B endl;B()coutdestructing B endl;class C : public Bpublic:C()coutconstructing C endl;C()coutdestructing C endl;int main() C c1;return 0;9：#include#include using namespace std;class Teacherpublic:Teacher(string nam,int a,char s,string tit,string ad,string t)

14、;void display();protected:string name;int age;char sex;string title;string addr;string tel;Teacher:Teacher(string nam,int a,char s,string tit,string ad,string t): name(nam),age(a),sex(s),title(tit),addr(ad),tel(t) void Teacher:display()coutname:nameendl; coutageageendl; coutsex:sexendl; couttitle:ti

15、tleendl; coutaddress:addrendl; couttel:telendl; class Cadrepublic:Cadre(string nam,int a,char s,string p,string ad,string t);void display();protected:string name;int age;char sex;string post;string addr;string tel;Cadre:Cadre(string nam,int a,char s,string p,string ad,string t): name(nam),age(a),sex

16、(s),post(p),addr(ad),tel(t)void Cadre:display() coutname:nameendl; coutage:ageendl; coutsex:sexendl; coutpost:postendl; coutaddress:addrendl; couttel:telendl;class Teacher_Cadre:public Teacher,public Cadrepublic:Teacher_Cadre(string nam,int a,char s,string tit,string p,string ad,string t,float w); v

17、oid show( );private:float wage;Teacher_Cadre:Teacher_Cadre(string nam,int a,char s,string t,string p,string ad,string tel,float w): Teacher(nam,a,s,t,ad,tel),Cadre(nam,a,s,p,ad,tel),wage(w) void Teacher_Cadre:show( )Teacher:display(); coutpost:Cadre:postendl; coutwages:wageendl; int main( )Teacher_C

18、adre te_ca(Wang-li,50,f,prof.,president,135 Beijing Road,Shanghai,(021)61234567,1534.5);te_ca.show( );/ 教师类/声明构造函数/ 声明输出函数/定义构造函数/ 定义输出函数/ 生日类/ 声明构造函数/ 声明输出函数/ 声明修改函数return 0;10：#include #include using namespace std;class Teacherpublic:Teacher(int,char ,char); void display();private:int num;char nam

19、e20;char sex;Teacher:Teacher(int n,char nam,char s) num=n;strcpy(name,nam);sex=s;void Teacher:display()coutnum:numendl;coutname:nameendl; coutsex:sexendl;class BirthDatepublic:BirthDate(int,int,int);void display();void change(int,int,int);private:int year;int month; int day;BirthDate:BirthDate(int y

20、,int m,int d) /定义构造函数year=y;month=m; day=d;void BirthDate:display() /定义输出函数coutbirthday:month/day/yearendl;void BirthDate:change(int y,int m,int d) /定义修改函数year=y;month=m;day=d;class Professor:public Teacher /教授类public:Professor(int,char ,char,int,int,int,float); /声明构造函数void display(); / 声明输出函数void c

21、hange(int,int,int); / 声明修改函数private:float area;BirthDate birthday; / 定义 BirthDate 类的对象作为数据成员;Professor:Professor(int n,char nam20,char s,int y,int m,int d,float a):Teacher(n,nam,s),birthday(y,m,d),area(a) / 定义构造函数void Professor:display() /定义输出函数Teacher:display();birthday.display();coutarea:areaendl;

22、void Professor:change(int y,int m,int d) /定义修改函数birthday.change(y,m,d);int main()Professor prof1(3012,Zhang,f,1949,10,1,125.4); /定义 Professor 对象 prof1 coutendloriginal data:endl;prof1.display(); / 调用 prof1 对象的 display 函数coutendlnew data:endl;prof1.change(1950,6,1); / 调用 prof1 对象的 change 函数prof1.display(); / 调用 prof1 对象的 display 函数return 0;