面向对象程序设计(C++)实验报告.doc

c+课程设计面向对象程序设计（c+）实验报告姓名：刘九州 学院：数学与计算机学院 班级：10级计算机大类三班 学号：100511314实验5 单继承一、实验目的1掌握派生的类别与方式； 2了解派生类中如何使用基类的成员、基类成员在派生类中的访问控制； 3. 掌握继承中构造函数和析构函数的调用过程。二、实验内容及步骤1. 给出一个document类，从document派生出book类，增加pagecount变量。在主函数中进行测试，创建book类对象并进行初始化，输出书名和页数。 2. 设计一个单基继承的类层次程序，利用person类派生出student类，增加属性xh（学号），person类中至少有姓名、年龄等数据成员，成员函数中构造函数对其初始化，析构函数释放相应存储单元，输出函数输出其数据成员的值，其它成员函数根据需要添加，在主函数中进行测试。3. 设计一个人员类person和一个日期类date，由人员类派生出学生类student和教师类professor，学生类和教师类的数据成员birthday为日期类。在主函数中进行测试。三、实验源程序和运行结果实验（一）源程序：#include#includeusing namespace std;class documentpublic:document();document();document(char*name);char *name;void printnameof();document:document(char*name)name=new charstrlen(name+1);strcpy(name,name);document:document()delete name;void document:printnameof()coutnameendl;class book:public documentpublic:int pagecount;book(char *a,int b):document(a)pagecount=b;void main()char bookname20;int n;cout请输入书名：bookname;cout请输入书的页数：n;book b(bookname,n);cout书名为：b.nameendl;cout页数为：b.pagecountendl;运行结果：实验（二）源程序：#include#includeusing namespace std;class personpublic:person()name=张三;age=0;person(string c,int a)name=c;age=a;person()void setname(string c)name=c;string getname()return name;void setage(int a)age=a;int getage()return age;private:string name;int age;class student:public personpublic:student()xh=0;student(int d)xh=d;student(string c,int a,int d):person(c,a)xh=d;student()void setxh(int d)xh=d;int getxh()return xh;private:int xh;void main()string c;coutc;couta;coutd;student n(c,a,d);cout请输入学生的姓名为： n.getname()endl;cout请输入学生的年龄为： n.getage()endl; cout请输入学生的学号为： n.getxh()endl;运行结果：实验（三）源程序：#includeusing namespace std;class personpublic:person()name=张三;age=0;person(string c,int a)name=c;age=a;person()void setname(string c)name=c;string getname()return name;void setage(int a)age=a;int getage()return age;private:string name;int age;class datepublic:date()year=2011;month=12;day=17;date()date(int y,int m,int d)year=y;month=m;day=d;int getyear()return year;int getmonth()return month;int getday()return day;private:int year;int month;int day;class student:public personpublic:student()/birthday.date();student(int y,int m,int d):birthday(y,m,d)student()void getbirthday()cout学生的生日为：n;coutbirthday.getyear()年birthday.getmonth()月birthday.getday()日endl;private:date birthday;class teacher:public personpublic:teacher()/birthday.date();teacher(int y,int m,int d):birthday(y,m,d)/birthday.date(y,m,d);teacher()void getbirthday()cout老师的生日为：n;coutbirthday.getyear()年birthday.getmonth()月birthday.getday()日endl;private:date birthday;void main()cout请输入学生的生日：ymd;student s(y,m,d);cout请输入老师的生日：ymd;teacher t(y,m,d);s.getbirthday(); t.getbirthday();运行结果：实验6 多继承一、实验目的1掌握多基继承的使用，访问方法；2理解类层次中访问规则；3掌握虚基类的定义及使用。二、实验内容及步骤1. 定义一个学生类student和教师类teacher，学生类有姓名、学号、私有数据成员，教师类有姓名、工作证号、职称、课程、周学时数。再定义一个助教类ta，继承学生类和教师类，该类可以使用学生类的全部数据成员，以及教师类的课程和周学时数的数据成员。要求：每个类提供自定义的构造函数和析构函数，并通过同名函数showinfo来显示全部数据成员的值。2. 设计一个虚基类person，包含姓名和年龄私有数据成员以及相关的成员函数；由它派生出领导类leader，包含职务和部门私有数据成员以及相关的成员函数；再由person派生出工程师类engineer，包含职务和专业私有数据成员以及相关的成员函数；再由leader和engineer类派生出主任工程师类chairman。并采用相关数据进行测试。三、实验源程序和运行结果实验（一）源程序：#include#includeclass studentprotected:char s_name20;int id_s;public:student(char *name,int id);void showinfo();class teacherprotected:char t_name20;int id_t;char position30;char lesson30;int hour;public:teacher(char *pos,int h);teacher(char *name,int id,char *less,char *pos,int h);void showinfo();class ta:public student,public teacherpublic:ta(char *name,char id,char *less,int h);void showinfo();student:student(char *name,int id)strcpy(s_name,name);id_s=id;void student:showinfo()cout姓名：s_namet学号：id_sendl;teacher:teacher(char *less,int h)strcpy(lesson,less);hour=h;teacher:teacher(char *name,int id,char *less,char *pos,int h)strcpy(t_name,name);strcpy(lesson,less);strcpy(position,pos);id_t=id;hour=h;void teacher:showinfo()cout姓名：t_namet职工号：id_tt职称：positiont课程：lessont学时数：hourendl;ta:ta(char *name,char id,char *less,int h):student(name,id),teacher(less,h)void ta:showinfo()student:showinfo();cout课程：lessont学时数：hourendl;void main()ta ta(刘九州,14,c+,64);ta.showinfo();运行结果：实验（二）源程序：#include#includeclass person /虚基类person类char name30;int age;public:person(char *n,int a);void setname(char *n);void setage(int a);char *getname();int getage();class leader:virtual public person/领导类char job30;/职务char dep30;/部门public:leader(char *jb,char *dp);void setjob(char *jb);void setdep(char *dp);char *getjob();char *getdep();class engineer:virtual public person/工程师类char major30; /专业char prof30; /职称public:engineer(char *maj,char *pf);void setmajor(char *maj);void setprof(char *pf);char *getmajor();char *getprof();class chairman:public leader,public engineer /主任工程师类public:chairman(char *n,int a,char *jb,char *dp,char *maj,char *pf);void disp();person:person(char *n,int a)strcpy(name,n);age=a;void person:setname(char *n)strcpy(name,n);void person:setage(int a)age=a;char *person:getname()return name;int person:getage()return age;leader:leader(char *jb,char *dp):person(,30)strcpy(job,jb);strcpy(dep,dp);void leader:setjob(char *jb)strcpy(job,jb);void leader:setdep(char *dp)strcpy(dep,dp);char *leader:getjob()return job;char *leader:getdep()return dep;engineer:engineer(char *maj,char *pf):person(,30)strcpy(major,maj);strcpy(prof,pf);void engineer:setmajor(char *maj)strcpy(major,maj);void engineer:setprof(char *pf)strcpy(prof,pf);char *engineer:getmajor()return major;char *engineer:getprof()return prof;chairman:chairman(char *n,int a,char *jb,char *dp,char *maj,char *pf):person(n,a),leader(jb,dp),engineer(maj,pf)void chairman:disp()cout姓名：getname()t年龄：getage()t职务:getjob()t部门：getdep()t专业：getmajor()t职称：getprof()endl;void main()chairman c(刘九州,21,厅长,财政厅,经济学,高级经济师);c.disp();运行结果： 实验7 多态与虚函数一、实验目的1.理解多态的概念2.掌握如何用虚函数实现运行时多态3.掌握如何利用抽象类二、实验内容及步骤1. 设计一个图形类（shape），由它派生出三角形类（triangle）、正方形类（square）、圆形类（circle），利用虚函数计算图形面积，并在主函数中进行测试。2. 定义一个教师类，由教师类派生出讲师、副教授、教授类。教师的工资分别由基本工资、课时费和津贴构成。假设讲师、副教授、教授的基本工资分别为800、900、1000元，课时费分别为每小时40、45、50元，津贴分别为1300、1800、2300。定义虚函数来计算教师的工资，并通过主函数来进行验证。三、实验源程序和运行结果实验（一）源程序：#includeusing namespace std;class shapepublic:virtual float area()return 0.0;class triangle:public shapepublic:triangle()bc=1.0;h=1.0;triangle(float bc,float h)this-bc=bc;this-h=h;bool setbc(float a)if(a0)bc=a;float getbc()return bc;bool setg(float b)if(b0)h=b;float getg()return h;float area()return bc*h/2;protected:float bc,h;class square:public shapepublic:square()l=1.0;square(float m)this-l=m;bool setbc(float c)if(c0)l=c;float getbc()return l;float area()return l*l;protected:float l;class circle:public shapepublic:circle()radius=1.0;circle(float r) this-radius=r;bool setradius(float r)if(r0)radius=r;float getradius()return radius;float area()return 3.14159*radius*radius;protected:float radius;void displayshapearea(shape *p)cout图形面积为:area()endl;void main()shape *p1,*p2,*p3;triangle t(15.0,10.0);square s(10.0);circle c(10.0);p1=&t;p2=&s;p3=&c;displayshapearea(p1);displayshapearea(p2);displayshapearea(p3);运行结果：实验（二）源程序：#includeusing namespace std;class teacherpublic:virtual float wage()return 0.0;class lecturer:public teacherpublic:lecturer()workhours=1.0;lecturer(float workhours)this-workhours=workhours;bool setworkhours(float h)if(h0)workhours=h;float getworkhours()return workhours;float wage()return (800+40*workhours+1300);protected:float workhours;class associateprofessor:public teacherpublic:associateprofessor()workhours=1.0;associateprofessor(float workhours)this-workhours=workhours;bool setworkhours(float h)if(h0)workhours=h;float getworkhours()return workhours;float wage()return (900+45*workhours+1800);protected:float workhours;class professor:public teacherpublic:professor()workhours=1.0;professor(float workhours)this-workhours=workhours;bool setworkhours(float h)if(h0)workhours=h;float getworkhours()return workhours;float wage()return (1000+50*workhours+2300);protected:float workhours;void displaywage(teacher *s)cout工资为:wage()endl;void main()teacher *s1,*s2,*s3;lecturer l(30.5);associateprofessor a(20.6);professor p(10.5);s1=&l;s2=&a;s3=&p;displaywage(s1);displaywage(s2);displaywage(s3);运行结果：实验8 运算符重载一、实验目的掌握c+中运算符重载的机制和运算符重载的方式；二、实验内容及步骤1. 编写一个简单复数类scomplex，要求用友元函数重载“+”、“-”运算符，用成员函数重载“=”运算符，使之能够实现整数或浮点数和复数的加法和减法，并且进行测试。 2. 空间一点p的坐标为（x,y,z）,其中x,y,z为整数。编写点类point3d,定义空间两点之间的加”+”,减”-”运算为相应三个坐标值分别进行加、减运算，要求实现空间两点之间的加”+”减”-”赋值”=”运算，空间两点间的比较”= =”运算。要求编写point3d类的声明定义和测试程序。3. 设计一个时间类time，包括时、分、秒等私有数据成员。重载“+”和“-”运算符以实现时间的加法和减法运算，并进行测试。三、实验源程序和运行结果 实验（一）源程序：#includeclass scomplex private:double real,imag;public:scomplex()real=0; /实部imag=0; /虚部scomplex(double x,double y)real=x;imag=y;scomplex& operator =(scomplex s);double getreal()return real;double getimag()return imag;friend scomplex operator+(int i,scomplex s); friend scomplex operator+(double d,scomplex s); friend scomplex operator-(int i,scomplex s); friend scomplex operator-(double d,scomplex s);scomplex& scomplex:operator =(scomplex s)if(this=&s) return *this;real=s.real;imag=s.imag;return *this;scomplex operator+(int i,scomplex s)scomplex t;t.real=i+s.real;t.imag=s.imag;return t;scomplex operator+(double d,scomplex s)scomplex t;t.real=d+s.real;t.imag=s.imag;return t;scomplex operator-(int i,scomplex s)scomplex t;t.real=i-s.real;t.imag=s.imag;return t;scomplex operator-(double d,scomplex s)scomplex t;t.real=d-s.real;t.imag=s.imag;return t;void main()scomplex s1(3.4,5.2),s2;s2=1+s1; cout复数s2是：(s2.getreal(),s2.getimag()endl;s2=6.2+s1; cout复数s2是：(s2.getreal(),s2.getimag()endl;s2=5-s1;cout复数s2是：(s2.getreal(),s2.getimag()endl;s2=3.2-s1;cout复数s2是：(s2.getreal(),s2.getimag()endl;运行结果：实验（二）源程序：#includeclass point3dpublic:point3d()x=1;y=1;z=1;point3d(int a,int b,int c) x=a;y=b;z=c;int getx()return x;int gety()return y;int getz()return z;point3d& operator =(point3d p);point3d operator +(point3d p);point3d operator -(point3d p);bool operator =(point3d p);private:int x,y,z;point3d& point3d:operator =(point3d p)if(this=&p) return *this;x=p.x;y=p.y;z=p.z;return *this;point3d point3d:operator +(point3d p) point3d t;t.x=x+p.x;t.y=y+p.y;t.z=z+p.z;return t;point3d point3d:operator -(point3d p)point3d t;t.x=x-p.x;t.y=y-p.y;t.z=z-p.z;return t;bool poi