有以下程序includeusing namespace std;class MyClass{public:MyClass(int n){number 有以下程序 #include<iostream> using namespace std; class MyClass { public: MyClass(int n){number =n; } //拷贝构造函数 MyClass(MyClass other) {number=other.number;} ~MyClass() {} private: int number; }; MyClass fun(MyClass p) { MyClass temp(p); return temp; } int main() { MyClass Obj1(10),obj2(0); MyClass obj3(obj1); obj2=fun(obj3); return 0; } 程序执行时,MyClass类的拷贝构造函数被调用的次数是A.5B.4C.3D.2

有以下程序includeusing namespace std;class MyClass{public:MyClass(int n){number

有以下程序 #include<iostream> using namespace std; class MyClass { public: MyClass(int n){number =n; } //拷贝构造函数 MyClass(MyClass& other) {number=other.number;} ~MyClass() {} private: int number; }; MyClass fun(MyClass p) { MyClass temp(p); return temp; } int main() { MyClass Obj1(10),obj2(0); MyClass obj3(obj1); obj2=fun(obj3); return 0; } 程序执行时,MyClass类的拷贝构造函数被调用的次数是

A.5

B.4

C.3

D.2


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有以下程序: include using namespace std; class MyClass { public: static int s; M 有以下程序:include<iostream>using namespace std;class MyClass{public:static int s;MyClass();void SetValue(int val);};int MyClass::s=0;MyClass::MyClass(){S++;}void MyClass::SetValue(int val){s=val;}int main(){MyClass my[3],*p;p=my;for(int k=0;k<3;k++){p->SetValue(k+1);p++;}cout<<MyClass::s<<end1;return 0;}运行后的输出结果是______。

有以下程序 include using namespace std; class MyClass { public: 有以下程序 #include<iostream> using namespace std; class MyClass { public: MyClass(intn) {number=n;} //拷贝构造函数 MyClass (MyClass other) {number=other.number;} ~MyClass(){} private: int number; }; MyClass fun (MyClass p) { MyClass temp(p); return temp; } intmain() { MyClass obj1(10),obj2(0); MyClass obj3(obj1); obj2=fun(obj3); return0; } 程序执行时,MyClass类的拷贝构造函数被调用的次数是A.5B.4C.3D.2

有如下程序 include include using namespace std; cla 有如下程序 #include <iostream> #include <iomanip> using namespace std; class MyClass { public: MyClass() { cout<<'A'; } MyClass(char c){ cout<<c; } ~MyClass(){ cout<<'B'; } }; int main( ) { MyClass p1,*p2; p2=new MyClass('X'); delete p2; return 0; } 执行这个程序屏幕上将显示输出A.ABXB.ABXBC.AXBD.AXBB

有如下程序: nclude using namespace Std; Class MyClass{ public: 有如下程序: #nclude<iostream> using namespace Std; Class MyClass{ public: MyClass(int i=0){cout<<1;} MyClass(constMyClassx){cout<<2;} MyClass perator=(const MyClassx){cout<<3;return*this;} ~MyClass(){cout<<4;} }; int main(){ MyClass obj1(1),obj2(2),obj3(obj1); return 0: } 运行时的输出结果是( )。A.112444B.11114444C.121444D.11314444

有如下程序: include using namespace std; class MyClass { public: 有如下程序: #include <iostream> using namespace std; class MyClass { public: MyClass() { ++count; } ~MyClass() { --count; } static int getCount() { return count; } private: static int count; }; int MyClass::count=0; int main() { MyClass obj; cout<<obj.getCount(); MyClass *ptr=new MyClass; cout<<MyClass::getCount(); delete ptr; cout<<MyClass::getCount(); return 0; }程序的输出结果是A.121B.232C.221D.122

有如下程序:includeusing namespace std;class MyClass{public:MyClass(int x):val(x 有如下程序: #include<iostream> using namespace std; class MyClass{ public: MyClass(int x):val(x){} void Print()const{cout<<“const:val=”<<<val<<‘\’;} void Print(){cout<<“val=”<<val<<‘t’;} private: int va1; }; int main(){ consA.val=10 const:val=20B.const:val=10 const:val=20C.const:val=10 val=20D.val=10 val=20

程序的输出结果是【 】。 include using namespace std; class A{ int x; public: A(int 程序的输出结果是【 】。include <iostream>using namespace std;class A{int x;public:A(int x=1):x(x){cout<<x;}};void main(){A a,b(2),c(3);}

已知下列程序的输出结果是23,请将横线处缺失的部分补充完整。 include using namespace 已知下列程序的输出结果是23,请将横线处缺失的部分补充完整。include<iostream>using namespace std;class MyClass{public:void Print()const{cout<<23;}};int main(){MyClass*p=new MyClass();______.Print();return 0;}

程序的输出结果是【 】。 include using namespace std; class A{ public: A(){a=b=2;} 程序的输出结果是【 】。include <iostream>using namespace std;class A{public:A(){a=b=2;}A(int i,int j){a=i;b=j;}void display(){cout<<a<<b;}private:int a,b;};void main(){A m,n(4,8);m.display();n.display();}

在下面程序的横线处填上适当的语句,使该程序执行结果为10。 include using namespace 在下面程序的横线处填上适当的语句,使该程序执行结果为10。include <iostream>using namespace std;class MyClass{public:MyClasS(int A){X=a;}【 】//取x的值private:int x;};int main(){MyClass my(10);

有如下程序:includeusing namespace std;elass MyClass{public:MyClass( ){++count; 有如下程序: #include<lostreanl> using namespace std; elass MyClass{ public: MyClass( ){++count;} ~MyClass( ){--count;} static int getCount( ){return count;} private: static int count; }; int MyClass::count=0; int main( ){ MyClass obj; cout<<obj.getCount( ); MyClass*ptr=new MyClass; cout<<MyClass::getCount( ); delete ptr; cout<<MyCiass::getCount( ); return 0; } 程序的输出结果是A.121B.232C.221D.122

有以下程序:include using namespace std; class Base { public: Base() { K=0; } int 有以下程序:include<iostream>using namespace std;class Base{public:Base(){K=0;}int x;};class Derivedl:virtual public Base{public:Derivedl(){x=10;}};class Derived2:virtua1 public Base

有以下程序:includeusing namespace std;class MyClass{public: MyClass(); ~MyClass 有以下程序: #include<iostream> using namespace std; class MyClass { public: MyClass(); ~MyClass(); void SetValue(int val); private: static int i; }; int MyClass::i=0; MyClass::MyClass() { i++; cout<<i; } MyClass::~MyClass() { i--; cout<<i; } void MyClass::SetValue(int val) { i=val; } int main() { MyClass*my[2]; int k; for(k=0;k<2;k++) my[k]=new MyClass; for(k=0;k<2;k++) delete my[k]; return 0; } 运行后的输出结果是( )。A.1210B.1100C.1234D.输出结果不确定

有以下程序:include using namespace std;class myclass{private: int a,b;public: v 有以下程序: #include <iostream> using namespace std; class myclass { private: int a, b; public: void init( int i, int j ) { a = i; b = j; } friend int sum( myclass x ); }; int sum( myclass x ) { return x.a + x.b; } int main () { myclass y; y.init( 15, 20 ); cout<<sum( y )<<end1; return 0; } 执行后的输出结果是( )。A.15B.20C.5D.35

有以下程序:includeusing namespace std;class MyClass{public:MyClass(int n){numbe 有以下程序: #include<iostream> using namespace std; class MyClass { public: MyClass(int n){number=n;} //拷贝构造函数 MyClass(MyClassother) {number=other.number;} ~MyClass() {} private: int number; }; MyClass fun(MyClass p)A.5B.4C.3D.2

有以下程序:include using namespace std;int s=0;class sample{ static int n;publi 有以下程序: #include <iostream> using namespace std; int s=0; class sample { static int n; public: sample (int i) { n=i; } static void add() { s+=n; } }; int sample::n=0;A.2B.5C.7D.3

有如下程序:include using namespace std;int s=0;class sample { static int n;publ 有如下程序: #include <iostream> using namespace std; int s=0; class sample { static int n; public: sample(int i) { n=i; } static void add() { s+=n; } };A.2B.5C.7D.3

若有以下程序:include using namespace std;class myClass{private: int var;public: 若有以下程序: #include <iostream> using namespace std; class myClass { private: int var; public: myClass(int i) { var=i; } void add() { s+=var; } static int s; void display() { cout<<s<<end1; } }; int myClass::s=0; int main ( ) { myClass a(1),b(2),c(3); a.add(); b.add(); c.dislay(); return O; } 程序执行后的输出结果是( )。A.1B.4C.3D.7

有以下程序include using namespace std;class MyClass{public:MyClass(int n) { num 有以下程序#include <iostream>using namespace std;class MyClass{public: MyClass(int n) { number=n; } //拷贝的构造函数 MyClass(MyClass other) {number=other. number; } ~MyClass() { }private: int number;};MyClass fun(MyClass p){ MyClass temp(p); return temp;}int main() MyClass obj 1 (10), obj 2(0); MyClass obi 3 (obj 1); obj2=fun(obj3); return 0;}程序执行时,MyClass 类的拷贝构造函数被调用的次数是( )。A.5B.4C.3D.2

有如下程序:includeusing namespace std;class MyClass{public: MyClass(int x):val( 有如下程序: #include<iostream> using namespace std; class MyClass{ public: MyClass(int x):val(x) {} void Print() const {cout<<"const:val="<<val<<'\t';} void Print() {cout<<"val="<<val<<'t';} private: int val; }; int main() const MyClass obj1(10); MyClass obi2(20); obj1.Print(); obj2.Print(); return 0; } 程序的输出结果是( )。A.val=10 const:val=20B.const:val=10 const:val=20C.const:val=10 val=20D.val=10 val=20

有如下程序include include using namespace std;class MyClass {public:M 有如下程序#include <iostream>#include <iomanip>using namespace std; class MyClass {public:MyClass(){ cout<<'A'; }MyClass(char c){ cout<<c; }~MyClass(){ cout<<'B'; }};int main() {MyClass p1,*p2;p2=new MyClass('X');delete p2;return 0;}执行这个程序屏幕上将显示输出( )。A.ABXB.ABXBC.AXBD.AXBB

有如下程序:includeusing namespace std;class MyClass{public:MyClass(){++count;}~ 有如下程序: #include<iostream> using namespace std; class MyClass{ public: MyClass(){++count;} ~MyClass(){--count;} static int getCount(){return count;} private: static int count; }; int MyClass::count=0; int main(){ MyClA.121B.232C.221D.122

如下程序的输出结果是includeusing namespace std;class MyClass{public:MyClass(int 如下程序的输出结果是 #include<iostream> using namespace std; class MyClass{ public: MyClass(int i=0){cout<<1;} MyClass(const MyClass&x)}cout<<2;} }; int main( ){ MyClass objl(1),obj2(2),ohj3(objl); return 0; }A.112B.111C.121D.113

有下列程序:includeUsing namespace std;Class Amount{ int amount;public; Amount(i 有下列程序: #include<iostream> Using namespace std; Class Amount{ int amount; public; Amount(int n=O):amount(n){} Int getAmount()const{return amount;} Amount operator+=(AmountA) {A.*thisB.thisC.amountD.amount

有下列程序:includeusing namespace std;class TestClass{int a;public:TestClass(in 有下列程序: #include<iostream> using namespace std; class TestClass { int a; public: TestClass(int x)<a=x;} void show(){cout<<a;} }; class TestClass1:publicTestClass { int b; public: TestClaA.5B.1C.0D.2

有以下程序:include using namespace std;define PI 3.14class Point{ private:int 有以下程序: #include <iostream> using namespace std; #define PI 3.14 class Point { private: int x,y; public: Point(int a,int b) { x=a; y=b; } int getx() { return x; }A.314B.157C.78.5D.153.86

已知如下程序的输出结果是23,请将画线处缺失的部分补充完整。 include using namespac 已知如下程序的输出结果是23,请将画线处缺失的部分补充完整。include <iostream>using namespace std;class MyClass {public:void Print() const { cout << 23; }};int main() {MyClass* p = new MyClass();【 】.Print();return 0;}