若有以下程序: #include <iostream> using namespace std; class A { private: int x; protected: int y; public: int z; void setx(int i) { x=i; } int getx () { return x; }; class B : protected A { public: void setvalue(int a, int b, int c) { setx (a); y=b; z=c; } void display() { cout<<getx ( ) <<", "<<y<<", "<<z<<", "<<end1; } }; int main () { B obj; obj.setvalue(5, 6, 7); obj.display ( ); return 0; } 程序运行后的输出结果是( )。
A.产生语法错误
B.7,6,5
C.5,6,7
D.7,5,6
[单选题]若有以下程序:include using namespace std;class Base {public:Base() { x=0; } int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: Derivedl() { x=10; } }; class Deriv
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[单选题]若有以下程序:include using namespace std;class Base{public:Base (){x=0;}int x;}若有以下程序: #include <iostream> using namespace std; class Base { public: Base () { x=0; } int x; }; class Derived1 : virtual public Base { public: Derived1 () { x=10; } }; class De
[单选题]若有以下程序:include using namespace std;class A{private:int a;public:A(int i){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
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[单选题]若有以下程序:include using namespace std;class data{public: int x; data (int x)若有以下程序: #include <iostream> using namespace std; class data { public: int x; data (int x) { data: :x=x; } }; class A { private: data d1; public: A(int x) : d1 (x) { } void dispa
[单选题]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<<
[单选题]若有以下程序:include using namespace std;class Base{ int x;protected: int y;pub若有以下程序: #include <iostream> using namespace std; class Base { int x; protected: int y; public: int z; void setx(int i) { x=i; } int getx ( ) { return x; } }; class Inherit : pri
[单选题]若有以下程序:include using namespace std;class Base{private: int a,b;public: Ba若有以下程序: #include <iostream> using namespace std; class Base { private: int a,b; public: Base(int x, int y) { a=x; b=y; } void show() { cout<<a<<", "<<b<<end1; } }; class Deriv