C++基础教程素材7.doc

#include class Apublic:void f1();protected:int j1;private:int i1;class B:public Apublic:void f2();protected:int j2;private:int i2;class C:public Bpublic:void f3();#include class Apublic:void f(int i) coutiendl;void g() coutgn;class B: Apublic:void h() couthn;Af;void main()B d1;d1.f(6);d1.g();d1.h();6h6gh#include #include class Apublic:A(const char *nm) strcpy(name,nm);private:char name80;class B:public Apublic:B(const char *nm):A(nm) void PrintName() const;void BPrintName() constcoutname: nameendl;void main()B b1(wang li);b1.PrintName();coutname: nameendl;wang li#include class Apublic:A() a=0; coutAs default constructor called.n;A(int i) a=i; coutAs constructor called.n;A() coutAs destructor called.n;void Print() const couta,;int Geta() return a;private:int a;class B:public Apublic:B() b=0;coutBs default constructor called.n;B(int i,int j,int k);B() coutBs destructor called.n;void Print();private:int b;A aa;BB(int i,int j,int k):A(i),aa(j)b=k;coutBs constructor called.n;void BPrint() APrint();coutb,aa.Geta()endl;void main()B bb2;bb0=B(1,2,5);bb1=B(3,4,7);for(int i=0;i2;i+)bbi.Print();As default constructor called.As default constructor called.Bs default constructor called.As default constructor called.As default constructor called.Bs default constructor called.As constructor called.As constructor called.Bs constructor called.Bs destructor called.As destructor called.As destructor called.As constructor called.As constructor called.Bs constructor called.Bs destructor called.As destructor called.As destructor called.1, 5, 23, 7, 4Bs destructor called.As destructor called.As destructor called.Bs destructor called.As destructor called.As destructor called.B(int i, int j, int k):A(i), aa(j)b=k;countBs constructor called.n;B(int i, int j, int k):A(i), aa(j), b(k)coutBs constructor called.n;#include class Mpublic:M() m1=m2=0;M(int i,int j) m1=i;m2=j;void print() coutm1,m2,;M() coutMs destructor called.n;private:int m1,m2;class N:public Mpublic:N() n=0;N(int i,int j,int k);void print() Mprint(); coutnendl;N() coutNs destructor called.n;private:int n;NN(int i,int j,int k):M(i,j),n(k) void main()N n1(5,6,7),n2(-2,-3,-4);n1.print();n2.print();5, 6, 7-2, -3, -4Ns destructor called.Ms destructor called.Ns destructor called.Ms destructor called.#include class Apublic:A() a=0;A(int i) a=i;void print() couta,;private:int a;class B:public Apublic:B() b1=b2=0;B(int i) b1=i;b2=0;B(int i,int j,int k):A(i),b1(j),b2(k) void print() Aprint();coutb1,b2endl;private:int b1,b2;void main()B d1;B d2(5);B d3(4,5,6);d1.print();d2.print();d3.print();0,0,00,5,04,5,6class Bpublic:B(int i, int j) b1=i; b2=j;private:int b1, b2;class D: public Bpublic:D(int i, int j, int k, int l, int m);private:int d1;B bb;DD(int i, int j ,int k, int l, int m):B(i, j), bb(k, l)d1=m;class Apublic:void Print() const coutAprint() called.n;class B:public Apublic:void f() ;void f1(const A& r)r.Print();void main()B b;f1(b);Aprint() called.#include class Apublic:A() a=0;A(int i) a=i;void print() coutaendl;int geta() return a;private:int a;class B:public Apublic:B() b=0;B(int i,int j):A(i),b(j) void print() Aprint(); coutbendl;private:int b;void fun(A& d)coutd.geta()*10print();fun(bb);9190aa=bb;pa=pb;bb=aa;pb=pa;class A;class B;class C:public A, public B;#include class B1public:B1(int i) b1=i;coutconstructor B1.iendl; void print() coutb1endl; private:int b1;class B2public:B2(int i) b2=i;coutconstructor B2.iendl; void print() coutb2endl;private:int b2;class B3public:B3(int i) b3=i;coutconstructor B3.iendl; int getb3() return b3;private:int b3;class A:public B2,public B1public:A(int i,int j,int k,int l):B1(i),B2(j),bb(k) a=l;coutconstructor A.lendl; void print() B1print();B2print();couta,bb.getb3()endl; private:int a;B3 bb;void main()A aa(1,2,3,4);aa.print();constructor B2.2constructor B1.1constructor B3.3constructor A.4124, 3A(int i, int j, int k, int l):B1(i), B2(j), bb(k)a=l;coutconstructor A.lendl;A(int i, int j, int k, int l):B1(i), B2(j), bb(k), a(l)coutconstructor A.lendl;class Apublic:void f();class Bpublic:void f();void g();class C: public A, public Bpublic:void g();void h();C c1;c1.f();c1.Af();c1.Bf();void Ch()f();void Ch()Af();void Ch()Bf();void Ch()Af();Bf();c1.g();class Apublic:int a;class B1:public Aprivate:int b1;class B2:public Aprivate:int b2;class C:public B1, public B2public:int f();private:int c;c1.a;c1.Aa;c1.B1a;c1.B2a;int Cf()return B1a+B2a;#include class Apublic:A(int i) a=i; coutcon. An;void print() coutaendl;A() coutdes. An;private:int a;class B1:public Apublic:B1(int i,int j):A(i) b1=j; coutcon. B1n;void print() Aprint(); coutb1endl;B1() coutdes. B1n;private:int b1;class B2:public Apublic:B2(int i,int j):A(i) b2=j; coutcon. B2n;void print() Aprint(); coutb2endl;B2() coutdes. B2n;private:int b2;class C:public B1,public B2public:C(int i,int j,int k,int l,int m):B1(i,j),B2(k,l),c(m) coutcon. Cn; void print()B1print();B2print();coutcendl; C() coutdes. Cn;private:int c;void main()C c1(1,2,3,4,5);c1.print();con.Acon.B1con.Acon.B2con.C12345des.Cdes.B2des.Ades.B1des.Aclass A: public B, public Bclass Apublic:void f();protected:int a;class B:virtual public Aprotected:int b;class C:virtual public Aprotected:int c;class D:public B, public Cpublic:int g();private:int d;D n;n.f(); /对f()引用是正确的。void Dg()f();/对f()引用是正确的。D n;A *pa;pa=& n;#include class Apublic:A(const char *s) coutsendl;A() ;class B:virtual public Apublic:B(const char *s1,const char *s2):A(s1)couts2endl; ;class C:virtual public Apublic:C(const char *s1,const char *s2):A(s1) couts2endl; ;class D:public B,public Cpublic:D(const char *s1,const char *s2,const char *s3,const char *s4):B(s1,s2),C(s1,s3),A(s1) couts4endl; ;void main()D *ptr=new D(class A,class B,class C,class D);delete ptr;class Aclass Bclass Cclass D#include #include #include typedef char string8080;class Datepublic:Date() Date(int y,int m,int d) SetDate(y,m,d);void SetDate(int y,int m,int d) Year=y;Month=m;Day=d; void GetStringDate(string80 &Date) sprintf(Date,%d/%d/%d,Year,Month,Day); protected:int Year,Month,Day;class Timepublic:Time() Time(int h,int m,int s) SetTime(h,m,s);void SetTime(int h,int m,int s) Hours=h;Minutes=m;Seconds=s; void GetStringTime(string80 &Time) sprintf(Time,%d:%d:%d,Hours,Minutes,Seconds); protected:int Hours,Minutes,Seconds;class TimeDate:public Date,public Timepublic:TimeDate():Date() TimeDate(int y,int mo,int d,int h,int mi,int s):Date(y,mo,d),Time(h,mi,s)void GetStringDT(string80 &DTstr) sprintf(DTstr,%d/%d/%d; %d:%d:%d,Year,Month,Day,Hours,Minutes,Seconds); ;void main()TimeDate date1,date2(1998,8,12,12,45,10);string80 DemoStr;date1.SetDate(1998,8,7);date1.SetTime(10,30,45);date1.GetStringDT(DemoStr);coutThe date1 date and time is DemoStrendl;date1.GetStringDate(DemoStr);coutThe date1 date is DemoStrendl;date1.GetStringTime(DemoStr);coutThe date1 time is DemoStrendl;date2.GetStringDT(DemoStr);coutThe date2 date and time is DemoStrendl;The date1 date and time is 1998/8/7; 10:30:45The date1 date is 1998/8/7The date1 time is 10:30:45The date2 date and time is 1998/8/12; 12:45:10typedef char string8080;string80 DemoStr;char DemoStr80;TimeDate(int y, int mo, int d, int h, int mi, int s):Date(y, mo, d), Time(h, mi, s)class Apublic:void f();class B: virtual public Apublic:void f();class C: public B;class D: public C, virtaul public Apublic:void g();void Dg()f();class Apublic:int a;int b();int f();int f(int);int g();class Bpublic:char f();int g();private:int a;int b();class C: public A, public B;C *pc;#include class Apublic:A(int i,int j) a=i; b=j;void Move(int x,int y) a+=x;b+=y;void Show() cout(a,b)endl;private:int a,b;class B:private Apublic:B(int i,int j,int k,int l):A(i,j) x=k;y=l;void Show() coutx,yendl;void fun() Move(3,5);void f1() AShow();private:int x,y;void main()A e(1,2);e.Show();B d(3,4,5,6);d.fun();d.Show();d.f1();#include class Apublic:A(int i,int j) a=i;b=j;void Move(int x,int y) a+=x;b+=y;void Show() cout(a,b)endl;private:int a,b;class B:public Apublic:B(int i,int j,int k,int l):A(i,j),x(k),y(l) void Show() coutx,yendl;void fun() Move(3,5);void f1() AShow();private:int x,y;void main()A e(1,2);e.Show();B d(3,4,5,6);d.fun();d.AShow();d.BShow();d.f1();#include class Lpublic:void InitL(int x,int y) X=x;Y=y;void Move(int x,int y) X+=x;Y+=y;int GetX() return X;int GetY() return Y;private:int X,Y;class R:public Lpublic:void InitR(int x,int y,int w,int h) InitL(x,y);W=w;H=h;int GetW() return W;int GetH() return H;private:int W,H;class V:public Rpublic:void fun() Move(3,2);void main()V v;v.InitR(10,20,30,40);v.fun();coutv.GetX(),v.GetY(),v.GetW(),v.GetH()endl;#include class Ppublic:P(int p1,int p2) pri1=p1;pri2=p2;int inc1() return +pri1;int inc2() return +pri2;void display() coutpri1=pri1,pri2=pri2endl;private:int pri1,pri2;class D1:private Ppublic:D1(int p1,int p2,int p3):P(p1,p2) pri3=p3; int inc1() return Pinc1();int inc3() return +pri3;void display() Pdisplay();coutpri3=pri3endl; private:int pri3;class D2:public Ppublic:D2(int p1,int p2,int p4):P(p1,p2) pri4=p4; int inc1() Pinc1();Pinc2();return Pinc1(); int inc4() return +pri4;void display() Pdisplay();coutpri4=pri4endl; private:int pri4;class D12:private D1,public D2public:D12(int p11,int p12,int p13,int p21,int p22,int p23,int p):D1(p11,p12,p13),D2(p21,p22,p23) pri12=p;int inc1() D2inc1();return D2inc1(); int inc5() return +pri12;void display() coutD2display()n;D2display();coutpri12=pri12endl; private:int pri12;void main()D12 d(1