超星 - 第八章最终作业new - 查题吧

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写出下列程序的执行结果是：__________________。#include #includeusing namespace std;class s{ public: s(){ str = '\0'; } s( char pstr ) { strcpy( str,pstr ); } char gets() { return str; } s operator+( s obj );private: char str[10]; };s s::operator+( s obj ){ strcat( str,obj.str );return str; //或return this } void main(){ s obj1( "Visual"),obj2("C++"),obj3; obj3 = obj1 + obj2; cout << obj3.gets() << endl;}

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写出下列程序的执行结果是：__________________。#include class Vector{ public: Vector(){ } Vector(int i,int j) { x = i ; y = j ; } friend Vector operator+ ( Vector v1, Vector v2 ) { Vector tempVector ; tempVector.x = v1.x + v2.x ; tempVector.y = v1.y + v2.y ; return tempVector ; } void display() { cout << "(" << x << "," <

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写出下列程序的执行结果是：__________________。#include using namespace std;class T{ public : T() { a = 0; b = 0; c = 0; } T( int i, int j, int k ) { a = i; b =j; c = k; } void get( int &i, int &j, int &k ) { i = a; j = b; k = c; } T operator* ( T obj );private: int a , b , c;};T T::operator* ( T obj ){ T tempobj; tempobj.a = a * obj.a; tempobj.b = b * obj.b; tempobj.c = c * obj.c; return tempobj;}void main(){ T obj1( 1,2,3 ), obj2( 5,5,5 ), obj3; int a , b , c; obj3 = obj1 * obj2; obj3.get( a, b, c ); cout<<"(obj1*obj2):"<<"a="<

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下面程序的运行结果如下： B：：display() C：：display() 在下划线处填上缺少的部分。源程序如下：#includeusing namespace std;class B{public: _________________ void display( ) {cout << "B：：display( ) "<display();}void main(){ B b,*pb; C c; pb=&b; fun(pb); pb=&c; fun(pb);}

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在下划线处填上缺少的部分。#include#includeusing namespace std；class complex{public：int real；int imag；complex(int r=0，int i=0){real=r；imag=i；}}；complex operator+( ________________________，complex& b){int r=a.real+b.real；int i=a.imag+b.imag；return complex(r,i)；}void main( ){complex x(1，2)，y(3，4)，z；z=x+y；cout<

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有如下程序：#includeusing namespace std;class Wages{ //"工资"类 double base; //基本工资 double bonus; //奖金 double tax; //税金public: Wages(double CBase,double CBonus,double CTax): base(CBase),bonus(CBonus),tax(CTax){} double getPay()const; //返回应付工资额 Wages operator+(Wages w)const; //重载加法};double Wages::getPay()const{return base+bonus-tax;}Wages Wages::operator+(Wages w)const{ return Wages(base+w.base, bonus+w.bonus,tax+w.tax);}int main(){ Wages w1(2000,500,100),w2(5000,1000,300); cout<<(w1+w2).getPay()<

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如下程序声明了一个电话号码类PhoneNumber，重载了流插入运算符<<，以便于电话号码的输出。请将程序补充完整。#include#include#includeusing namespace std;class PhoneNumber{public: void setNumber(string number){this->number=number;}//重载流插入操作符 friend (ostream &output,const PhoneNumber &num) {output<

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下列程序的输出结果为2，请将程序补充完整。#include using namespace std;class Base{public: ______ void fun(){cout<<1;}};class Derived:public Base{public: void fun(){cout<<2;}};int main(){ Base *p=new Derived; p->fun(); delete p; return 0;}

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下列程序的输出结果是______。#includeusing namespace std;class base{ public:int n;base(int x) { n=x;}virtual void set(int m) { n=m;cout<set(1); pbase=&d2; pbase->set(2); return 0;}

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程序运行结果_________.#includeclass A{ int a,b;public: A(int i, int j) {a=i;b=j; } void Move(int x, int y) {a+=x; b+=y; } void Show( ) {cout<<"("<

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