A.SAMPLE::setValue(int nO){ n=nO;}
B.void SAMPLE::setValue(int nO){ n=nO;}
C.void setValue(int nO){ n=nO;}
D.(int nO){ n=nO;}
[单选题]有如下类声明:class SAMPLE{int n;public:SAMPLE (int i = 0): n(i){}void setvalue(int n0);};下列关于 setvalue 成员函数的实现中,正确的是A. . SAMPLE::setvalue(int n0){n = n0;}B. . void SAMPLE::setvalue(int n0){n = n0;}C. . void setvalue(int n0){n = n0;}D. . setvalue(int n0){n
[单选题]有如下类声明; class SAMPLE { int n; public: SAMPLE(int i=0):n(i){} void setValue(int n0); }; 下列关于setValue成员函数的实现中,正确的是( )。A.SAMPLE::setValue(int n0){n=n0;)B.void SAMPLE::setValue(int n0){n=n0;}C.void setValue(int n0){n=n0;}D.(int n0){n=n0;}
[单选题]有如下类声明: class TestClass { int n; public: TestClass(int i=0):n(i){} void setValue(int n0); }; 下面关于setValue成员函数的实现中,正确的是( )A.TestClass::setValue(int n0){n=n0;)B.void TestClass::setValue(int n0){n=n0;}C.void setValue(int n0){n=n0;}D.setValue(int n0){n=n
[单选题]有如下类声明: class XA { int x; public: XA(int n) {x=n;} }; class XB: public XA{ int y; public: XB(int a,int b); };在构造函数XB的下列定义中,正确的是______。A.XB:: XB(int a, int b):x(a),y(b) { }B.XB::XB(int a, int b):XA(a),y(b){}C.XB::XB(int a,int b):x(a),XB(b)i}D.XB::XB(i
[单选题]有如下类声明:class XA{int x;public:XA(int n){x=n;}};class XB:public XA{int y;public:XB(int a, int b) ;};在构造函数XB的下列定义中,正确的是A.XB::XB(int a,int B) :x(A) ,y(B) {}B.XB::XB(int a,int B) :XA(A) ,y(B) {}C.XB::XB(int a,int B) :x(A) ,XB(B) {}D.XB::XB(int a,int B) :X
[单选题]有如下类声明: class XA{ int X; public: XA(int n){x=n;} }; class XB:publicXA{ int y; public: XB(int a,int b); ); 在构造函数XB的下列定义中,正确的是( )。A.XB::XB(int a,int b):x(a),y(b){}B.XB::XB(int a,int b):XA(a),y(b){}C.XB::XB(int a,int b):x(a),XB(b){}D.XB::XB(int a,int b)
[单选题]有如下类声明: class XA{ int X; public: XA(int n){x=n;} }; class XB:public XA{ int y; public: XB(int a,int b); }; 在构造函数XB的下列定义中,正确的是( )。A.XB::XB(inta,int b):x(a),y(b){}B.XB::XB(int a,int b):XA(a),y(b){}C.XB::XB(int a,int b):x(a),XB(b){}D.XB::XB(int a,int b)
[单选题]有如下类声明: class XA{ int x; public: XA(int n){x=n;} }; class XB:public XA{ int y; public: XB(int a,int b); }; 在构造函数XB的下列定义中,正确的是( )。A.XB::XB(int a,int b):x(a),y(b){}B.XB::XB(int a,int b):XA(a),y(b){}C.XB::XB(int a,int b):x(a),XB(b){}D.XB::XB(int a,int b
[单选题]有如下类定义:class Sample {public;Sample(int x):ref(x){} //①private:Sample():ref(0){) //②static int val=5; //③const int ref; //④};上述程序段中,错误的语句是( )。A.) ①B.) ②C.) ③D.) ④A.B.C.D.
[单选题]有如下类声明: class XA { int x; public: XA(int n){x=n;} }; class XB:public XA { int y; public: XB(int a,int b); }; 在构造函数XB的下列定义中,正确的是A.XB::XB(int a,int b):x(a),y(b){}B.XB::XB(int a,int b):XA(a),y(b){}C.XB::XB(int a,int b):x(a),XB(b){}D.XB::XB(int a,int b):