实验八_对象成员.doc

实验八 对象成员1、实验目的及要求1）理解对象成员的概念2）掌握对象成员的初始化方法2、预习对象成员，对象成员的创建和使用，*this指针等相关知识。3、 实验内容1 分析调试程序指出程序运行的结果1)分析下面程序中对象传递,写出输出结果.#includeusing namespace std;class Aint i;public:A(int x) i=x; int get() return i;int cube(A a)return a.get()*a.get();int main()A a1(10),a2(20);coutcube(a1)endl;coutcube(a2)endl;return 0;实验结果:100400Press any key to continue2)分析对象成员的调用,写出程序结果#includeusing namespace std;class Bprivate:int a,b;public:B()B(int i,int j);void showb();class Aprivate:B c;public:A()A(int i,int j);void showa();A:A(int i,int j):c(i,j)void A:showa()c.showb();B:B(int i,int j)a=i;b=j;void B:showb()couta=a,tb=bendl;int main()A a1(5,6);a1.showa(); return 0;实验结果:a=5, b=6Press any key to continue2.编写程序已定义了类CDate:#includeusing namespace std;class CDateint year,month,date;public:CDate(int,int,int);void print();CDate: CDate (int y,int m,int d)year=y;month=m;date=d;void CDate:print()coutmonthdateyearendl;在此基础上编写一个student类，包含：（1） 私有数据name,id,birthday. Birthday为CDate对象；（2）设计构造函数，成员函数print()打印学生信息；成员函数modify,修改学生的name,id;(3)定义主函数验证以上类。代码：#includeusing namespace std;class CDate int year,month,date;public: CDate(int,int,int); void print(); ;CDate:CDate(int y,int m,int d) year=y; month=m; date=d;void CDate:print() coutmonthdateyearendl;class Studentprivate:char*name;char*id;CDate Birthday;public:Student(char*name1,char*id1,int year,int month,int date);Student();void modify(char*name2,char*id2);void print();Student:Student(char*name1,char*id1,int year,int month,int date):Birthday(year,month,date)name=new charstrlen(name1)+1; strcpy(name,name1); id=new charstrlen(id1)+1; strcpy(id,id1);Student:Student()delete name;delete id;void Student:modify(char*name2,char*id2)name=new charstrlen(name2)+1; strcpy(name,name2); id=new charstrlen(id2)+1; strcpy(id,id2);void Student:print()coutname:nameendl;coutid:idendl;Birthday.print();int main()Student s(xiaoming,11072123,1992,03,28);Student s1(xiaoli,11072653,1993,03,18);s.print();s1.print();retur