class Sample { public: Sample(int val); //①
~Sample(): //②
private: int a=2.5; //③
Sample(); //④ };
A.①②③④
B.②
C.③
D.①②③
[单选题]在下面的类定义中,错误的语句是( )。 class Sample { public: Sample(int val): //① ~Sample(); //② private: int a=2.5; //③ Sample(): //④ };A.①②③④B.②C.③D.①②③
[单选题]在下面的类定义中,错误的语句是( )。class Sample { public:Sample(int val); //①~Sample(); //②private: int a=2.5; //③Sample(); //④ };A.①②③④B.②C.③D.①②③
[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.
[试题]( 11 )有如下类定义:class Sample{public:Sample();~Sample();Private:Static int date;};将静态数据成员 data 初始化为 0 的语句是 ( 11 ) 。
[单选题]在下面的类定义中,横线处应填入的内容是 class Fred { public: void print () { cout<<data<<end1;} void setData (double D) {data=d; static int count; private: double data; };______count=0; //静态数据成员的定义A.intB.static intC.int Fred::D.static int Fred::
[单选题]在下面的类定义中,横线处应填入的内容是 class Fred { public: void print(){cout<<data<<endl;} void setData(double d)(data=d;} static int count; private: double data; }; count=0; //静态数据成员的定义A.intB.static intC.int Fred::D.static int Fred::
[单选题]在下面的类定义中,横线处应填入的内容是( )。 class Fred { public: void print(){cout<<data<<end1;} void setData(double d}{data=d;} static int count; private: double data; }; ______count=0; //静态数据成员的定义A.intB. static intC.int Fred::D. static int Fred::
[单选题]在下面的定义语句中,画线处应填入的内容是 class Fred{ public: void print( ){cout<<data<<endl;} void setData(double D) {data=d;} static int count; private: double data; }; ______count=0;//静态数据成员的定义A.intB.static intC.int Fred::D.static int Fred::
[主观题]请在下列程序中的空格处填写正确的语句:class Sample{public:Sample( ){ }~Sample( ){ }void SetData(int datA) {//将Sample类成员变量data设置成形参的值______}private:int data;};
[主观题]有如下类定义,请将Sample类的复制构造函数补充完整。class Sample{public:Sample( ){ }~Sample( ){if(P)delete P;)Sample(const Sample&s){______}void SetData(int datA) {P=new int(datA) ;}private:int*P:};