有以下程序:includeusingnamespacestd;definePI3.14classPoint{private: intx,y;pub 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<<cl.area()<<endl; return 0; } 程序执行后的输出结果是A.314B.157C.78.5D.153.86

有以下程序:includeusingnamespacestd;definePI3.14classPoint{private: intx,y;pub

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<<cl.area()<<endl; return 0; } 程序执行后的输出结果是

A.314

B.157

C.78.5

D.153.86


相关考题:

有如下程序:includeusing namespace std;Class TestClass{private:int x,y;public:Te 有如下程序: #include<iostream> using namespace std; Class TestClass { private: int x,y; public: TestClass(int i,int j) { x=i; y=j; } void print() { cout<<“print1”<<endl; } void print()const { cout<<”prinA.printlB.print2C.printl print2D.程序编译时出错。

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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

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

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

有下列程序:includeusing namespace std;class TestClass{private:int x,y;public:Te 有下列程序: #include<iostream> using namespace std; class TestClass { private: int x,y; public: TestClass (int i,int j) { x=i; y=j; } void print() { cout<<"printl"<<endl; } voA.print1B.print2C.pfint1 print2D.程序编译时出错

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

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

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