网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
若有以下程序:include using namespace std;define PI 3.14class Point{private: in

若有以下程序: #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; } int gety() { return y; } }; class Circle : public Point { private: int r; public: Circle(int a, int b,int c) :Point(a,b) { r=c; } int getr() { return r; } double area() { return PI*r*r; } }; int main() { Circle c1(5,7,10); cout<<c1.area()<<end1; return 0; } 程序执行后的输出结果是( )。

A.314

B.157

C.78.5

D.153.86


参考答案

更多 “ 若有以下程序:include using namespace std;define PI 3.14class Point{private: in 若有以下程序: #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; } int gety() { return y; } }; class Circle : public Point { private: int r; public: Circle(int a, int b,int c) :Point(a,b) { r=c; } int getr() { return r; } double area() { return PI*r*r; } }; int main() { Circle c1(5,7,10); cout<<c1.area()<<end1; return 0; } 程序执行后的输出结果是( )。A.314B.157C.78.5D.153.86 ” 相关考题
考题 有以下程序:includeusing namespace std;definePl 3.14Class Point{private:int x,y 有以下程序: #include<iostream> using namespace std; #definePl 3.14 Class Point {private: int x,y; public: Point(int a,intB) {X=a; y:b;} int getx() <return x;} int gety() {return y;}}; class Circle:public Point {priA.314B.157C.78.5D.153.86

考题 有以下程序:includeincludeusing namespace std; class point{private:double 有以下程序: #include<iostream> #include<math> using namespace std; class point { private: double x; double y; public: point(double a,double B) { x=a; y=b; } friend double distance (point a,point B) ;A.1B.5C.4D.6

考题 若有以下程序: include usingnamespace std; class Sample { private: const int n; 若有以下程序:include <iostream>using namespace std;class Sample{private:const int n;public:Sample(int i) :n(i) {)void print(){cout<<"n="<<n<<end1;}};int main(){sample a(10);a.print();return 0;}上述程序运行后的输出结果是【 】。

考题 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

考题 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

考题 若有以下程序:include using namespace std;class point{private: int x, y;public: 若有以下程序: #include <iostream> using namespace std; class point { private: int x, y; public: point ( ) { x=0; y=0; } void setpoint(int x1,int y1) { x=x1; y=y1;A.12,12B.5,5C.12,5D.5,12

考题 若有以下程序:include using namespace std;class Base{private: int x;protected: i 若有以下程序: #include <iostream> using namespace std; class Base { private: int x; protected: int y; public: int z; void setx(int i) { x=i; int getx () { return x; } }A.1,2,3,4B.产生语法错误C.4,3,2,1D.2,3,4,5

考题 若有以下程序:include using namespace std;define PI 3.14class Point {private: i 若有以下程序: #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; } int gety() { reurn y; } }; class Circle: public Point { private: int r; public: Circle(int a,int b.int C) :Point(a,B) r=c; int getr() { return r; } double area() { return PI*r*r; } }; int main() { Circle cl(5,7,10); cout<<c 1 .area()<<end1; return 0; } 程序执行后的输出结果是A.314B.157C.78.5D.153.86

考题 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