江苏科技大学课程实践设计报告VC++(3)

cout<<\ cout<<\三．系统测试

系统测试主要通过在主函数中定义对象来完成，主函数定义如下：

void main(void) {

Student astu(\运河路\ Staff astaf(\北京路\

Professor aprofes(\南京路\

StudentStaff astustaf(\Xi\乌鲁木齐路\Science\Engineer\

astu.Output(); cout<<\ astaf.Output(); cout<<\

aprofes.Output(); cout<<\

astustaf.Output(); cout<<\}

预期输出结果为：

Wang Vi 运河路

Major: Computer science Idnumber: 8401031

Li Xin 北京路

Department: Electrical Engineer hourly wage: 16.5

Zhang Xi 南京路

Department: Computer science hourly wage: 0 Salary: 3000

Wang Xi 乌鲁木齐路

Major: Computer science

Department: Electrical Engineer hourly wage: 5.8

四． 实验小结

刚开始接触这道题目，感觉毫无头绪，读了好几遍题目依旧一头雾水，于是去请教了同学，他引导着我把题目又分析了一遍，把题目中的类一一列出来，分析他们之间的关系，分析各个成员的关系。由于对虚函数还不是很了解，我又参考课本把虚函数这节复习了一遍。编写好源程序之后就是上机调试，通过不断地发现错误改正错误，最后总算是解决了这道题目！ 五．参考文献：

[1] 潘克勤，华伟 《Visual C++程序设计》 北京：中国铁道出版社，2008

[2] 张晓如，王芳 《Visual C++程序设计解析与实训》 北京：中国铁道出版社，2008 六．源程序清单 #include #include class DataRec {protected: char *name; char *address; char* strsave(char *s) { char* r=new char[strlen(s)+1]; strcpy(r,s); return r; } public: DataRec(char *nam,char *addr) { name=strsave(nam); address=strsave(addr); } ~DataRec() { delete [] name;

delete []address; } virtual void Output()=0; };

class Student:DataRec {private: char* major; int number; public: Student(char *nam,char *addr,char* majo,int num):DataRec(nam,addr) { major=strsave(majo); number=num; } ~Student() { delete []major;} void Output() { cout<class Staff:DataRec {protected: char* department; double t_salary; public: Staff(char *nam,char *addr,char* depar,double t_sala):DataRec(nam,addr) { department=strsave(depar); t_salary=t_sala; } ~Staff() { delete [] department;} void Output() { cout<class Professor:Staff { private: double salary; public: Professor(char *nam,char *addr,char* depar,int t_sala,double salar):Staff(nam,addr,depar,t_sala) { salary=salar;} void Output() { Staff::Output();

cout<<\ } };

class StudentStaff:Student,Staff {public: StudentStaff(char *nam,char *addr,char* majo,int num,int salar,char* depar,double t_sala):Student(nam,addr, majo, num),Staff(nam,addr, depar, t_sala) {}; void Output() { Student::Output(); cout<<\ cout<<\ } };

void main(void) { Student astu(\运河路\ Staff astaf(\北京路\ Professor aprofes(\南京路\ StudentStaff astustaf(\乌鲁木齐路\ astu.Output(); cout<<\ astaf.Output(); cout<<\ aprofes.Output(); cout<<\ astustaf.Output(); cout<<\}