有如下程序: #includeiostream usingnamespacestd; classA{ public: A(inti=O):rl(i){} voidprint( ){coutEr1-;) voidprint( )const{coutCr1*r1 -;) voidprint(intx){coutPr1*r1*r1 -;} private: intr1; }; intmain( ){ Aal: constAa2(4); a1.print(2); a2.print( ); return0; } 运行时的输出结果是( )。A.P8一E4B.P8一C16一C.P0一E4一D.P0一C16—

有如下程序: #include<iostream> usingnamespacestd; classA{ public: A(inti=O):rl(i){} voidprint( ){cout<<E<<r1<<-;) voidprint( )const{cout<<C<<r1*r1<< -;) voidprint(intx){cout<<P<<r1*r1*r1<< -;} private: intr1; }; intmain( ){ Aal: constAa2(4); a1.print(2); a2.print( ); return0; } 运行时的输出结果是( )。

A.P8一E4

B.P8一C16一

C.P0一E4一

D.P0一C16—


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有以下程序:includeusing namespace std;class A{private:int a;public:A(int i){a=i 有以下程序: #include<iostream> using namespace std; class A {private: int a; public: A(int i) {a=i;} void disp() {cout<<a<<“,”;}}; class B {private: int b; public: B(int j) {b=j;} void disp() {cout<<b<<“,”;A.10,10,10B.10,12,14C.8,10,12D.8,12,10

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();}

有以下程序:include using namespace std;class A{public: A(int i,int j) { a=i; b= 有以下程序: #include <iostream> using namespace std; class A { public: A(int i,int j) { a=i; b=j; } void move(int x,int y) { a+=x; b+=y; } void show() { cout<<a<<","<<b<<end1; } private: int a,b; }; class B: private A { public: B(int i,int j): A(i,j) {} void fun() { move(3,5); } void fl () { A::show(); } }; int main() { B d(3,4); d.fun(); d.f1(); return 0; } 程序执行后的输出结果是A.3,4B.6,8C.6,9D.4,3

设有如下程序: include using namespace std; class A { public:int i;display(){co 设有如下程序: #include <iostream> using namespace std; class A { public: int i; display() { cout<<"class A\n"; } }; class B { public: int i; display() { cout<<"class B\n"; } }; class C : public A, public B { int j; public: int i; show ( ) { j = i * i; display(); } }; int main() { C demo; demo.show(); return O; } 则主程序运行时将( )。A.因为变量i的重复定义而报错B.因为对象demo间接调用display()函数时产生二义性而报错C.因为类定义的语法错误而不能运行D.没有语法错误,能够正常输出结果

若有以下程序include using namespace std;class A{public: A(int i,int j) {a=i;b=j 若有以下程序 #include <iostream> using namespace std; class A { public: A(int i,int j) { a=i; b=j; } void move(int x, int y) { a+=x; b+=y; } void show() { cout < <a < <" , " <<b<< end1; } private: int a,b; }; class B : private A { public: B(int i,int j) :A(i,j) {} void fun ( ) { move (3, 5); } void f1 ( ) { A::show(); } }; int main ( ) { B d(3,4); d. fun ( ); d.f1(); return 0; } 程序执行后的输出结果是 ( )。A.3,4B.6,8C.6,9D.4,3

设有如下程序:include class A{public:int i;display(){ cout 设有如下程序:#include <iostream. h>class A{public:int i;display(){ cout<<"class A\n"; }};class B{public:int i;display(){ cout<<"class B\n"; }};class C: public: A, public: B{int j;public:int i;show(){ j=i*i; display(); }};void main(){C demo;demo. show();}则主程序运行时,将( )。A.因为变量i的重复定义而报错B.因为对象demo间接调用display函数时产生歧义性而报错C.因为类定义的语法错误而不能运行D.没有语法错误,能够正常输出结果

有如下程序:includeusing namespaee std;class A{public:A(int i):rl(i){ }void prin 有如下程序: #include<iostream> using namespaee std; class A{ public: A(int i):rl(i){ } void print( ){cout<<'E'<<rl<<'-';} void print( )const}cout<<'C'<<rl*rl<<'-';} private: int rl; }; int main( ){ A al(2);eonst A a2(4); a1.print( );a2.print( ); return 0; } 程序的输出结果是A.运行时出错B.E2-C16-C.C4-C16-D.E2-E4-

若有以下程序:includeusing namespace std;class A{private:int a;public:A(int i){a 若有以下程序: #include<iostream> using namespace std; class A {private: int a; public: A(int i) {a=i;} void disp() {cout<<a<<“,”;}}; class B {private: int b; public: B(int j {b=j;} void disp() {cout<<b<<A.10,10,10B.10,12,14C.8,10,12D.8,12,10

若有如下程序:includeusing namespace std;class A{public:A(int i,int j){a=i;b=j;} 若有如下程序: #include<iostream> using namespace std; class A { public: A(int i,int j) { a=i; b=j; } void move(int x,int y) { a+=x; b+=y; } void show() { cout<<a<<","<<b<<end1; } private: int a,b; }; class B:private A { public: B(int i,int j):A(i,j) { } void fun() { move(3,5); } void f1() { A::show(); } }; int main() { B d(3,4); d.fun(); d.f1(); return 0; } 程序执行后的输出结果是( )。A.3,4B.6,8C.6,9D.4,3

若有以下程序:include using namespace std;class A{private: int a;public: A(int 若有以下程序: #include <iost ream> using namespace std; class A { private: int a; public: A(int i) { a=i; } void disp () { cout<<a<<", "; } }; class B { private:A.10,10,10B.10,12,14C.8,10,12D.8,12,10