有以下程序: #include ＜iostream＞ using namespace std; class Complex { public: Complex(double r=0,double i=0):re(r),im(i){ double zeal() const {return re;} double imag() const {return im;} Complex operator+(Complex c) const { return Complex(re+c.re,im+c.im);} private: double re,im; }; int main() Complex a=Complex(1,1)+Complex(5); cout＜＜a.real()＜＜'+'＜＜a.imag()＜＜'i'＜＜end 1; return 0; }程序执行后的输出结果是______。
A．6+6i
B．6+1i
C．1+6i
D．1+1i
[主观题]若有以下程序: include using namespace std; class sample { int x; public: sample若有以下程序：include ＜iostream＞using namespace std;class sample{int x;public:sample(){}void setx(int i){x=i;}friend iht fun(sample B[],int n){int m=0;for{int i=0;i＜n;i++)if(B[i].x＞m)
[单选题]若有以下程序:include using namespace std; class Base public: Base() { x=0;} in若有以下程序： #include ＜iostream＞ using namespace std; class Base public: Base() { x=0; } int x; }; class Derivedl: virtual public Base public: Derived1() { x=10; } }; class Derived2:
[单选题]有如下程序: include using namespace std; class Obj { static in有如下程序： #include ＜iostream＞ using namespace std; class Obj { static int i; public: Obj( ){i++;} ～Obj(){i--;} static int getVal( ){ return i;} }; int Obj::i=0; void f() {Obj ob2; cout＜＜ob2.getVa
[单选题]有如下程序: include using namespace std; class B { public:有如下程序： #include ＜iostream＞ using namespace std; class B { public: virtual void show() { cout＜＜"B"; } }; class D: public B{ public: void show() { cout＜＜"D"; } }; void fun1(B *ptr) { ptr-＞show()
[单选题]有如下程序: include using namespace std; class Part{ public:有如下程序： #include ＜iostream＞ using namespace std; class Part{ public: Part(int x=0):val(x) { cout＜＜val; } ～Part() { cout＜＜val; } private: int val; }; class Whole { public: Whole(int x, int y, int
[单选题]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; }； i
[单选题]有如下程序: include using namespace std; class Base { public:有如下程序： #include ＜iostream＞ using namespace std; class Base { public: Base(int x=0) { cout＜＜x; } } class Derived: public Base{ public: Derived(int x=0) { cout＜＜x; } private: Base val; }; int mai
[单选题]有如下程序: include using namespace std; class Sample { frien有如下程序： #include ＜iostream＞ using namespace std; class Sample { friend long fun(Sample s); public: Sample(long a) {x=a;} private: long x; }; long fun(Sample s) { if(s.x ＜ 2) return 1; return s.x
[单选题]有如下程序: include using namespace std; class point {int x,y; public:point( i有如下程序： #include ＜iostream＞ using namespace std; class point { int x, y; public: point( int vx, int vy ) { x = vx; y = vy; } point ( ) { x = 0; y = 0; } point operator+( point p
[单选题]有以下程序: include using namespace std; int main() {int x;for(int i=1;i<=100;有以下程序: #include ＜iostream＞ using namespace std; int main() { int x; for(int i=1;i＜=100;i++) { x=i; if (++x%2==0) if (++x%3==0) if (++x%7==0) cout＜A．39,81B．42,84C．26,68D．28,70