继承与派生程序阅读题

1、继承与派生1、 分析以下程序的执行结果class base public: base()coutconstructing base classendl;base()coutdestructing base class; class subs:public base public: subs()coutconstructing sub classsubs()coutdestructing sub class; void main() subs s; 2、 分析以下程序的执行结果： class base int n; public: base(int a) coutconstructing bas

2、e class n=a; coutn=n； base()coutdestructing base class；; class subs:public base base bobj; int m; public: subs(int a,int b,int c):base(a),bobj(c) coutconstructing sub cass；m=b; coutm=m； subs()coutdestructing sub class；; void main() subs s(1,2,3); 3、分析以下程序的执行结果 class A public: int n; ; class B:public

3、 A; class C:public A; class D:public B,public C int getn()return B:n; ; void main() D d; d.B:n=10; d.C:n=20; coutD.B:N,D.C:N 6.4 分析以下程序的执行结果 class A public: int n; ; class B:virtual public A; class C:virtual public A; class D:public B,public C int getn()return B:n; ; void main() D d; d.B:n=10; d.C:n

4、=20; coutD.B:N,D.C:N 4、 分析以下程序的执行结果: #include class A int a; public: A(int i) a=i;cout constructing class A endl; void print() cout a endl; A() cout destructing class A endl; ; class B1:public A int bl; public: Bl(int i,int j):A(i) bl=j;cout constructing class BI endl; void print() A:print (); cout

5、bl endl; B1() cout destructing class BI endl; ; class B2:public A int b2; public: B2(int i,int j):A(i); b2=j;cout constructing class B2 endl; void print() A:print (); cout b2 endl; B2() cout destructing class B2 endl; ; class C:public B1,public B2 int c; public: C(int i,int j,int k, int 1,int m) :Bl

6、(i,j),B2(k,1),c(m) cout constructing class C endl; void print() Bl:print(); B2:print(); cout c endl; C( ) cout destructing class C endl; ; void main() C c1(1,2,3,4,5); cl.print(); 5、分析以下程序执行结果： #include class A public: A(char *s) cout s endl; A() ; class B:public A public: B(char *sl,char *s2) :A(sl) cout s2 endl; ; class C:public A public: C(char *sl,char *s2) :A(sl) cout s2 endl; ; class D:public B,public C public: D(char *sl,char *s2,