有如下程序: #include<lostreanl> using namespace std; elass MyClass{ public: MyClass( ){++count;} ~MyClass( ){--count;} static int getCount( ){return count;} private: static int count; }; int MyClass::count=0; int main( ){ MyClass obj; cout<<obj.getCount( ); MyClass*ptr=new MyClass; cout<<MyClass::getCount( ); delete ptr; cout<<MyCiass::getCount( ); return 0; } 程序的输出结果是
A.121
B.232
C.221
D.122
第1题:
有如下程序#include <iostream>#include <iomanip>using namespace std; class MyClass {public:MyClass(){ cout<<'A'; }MyClass(char c){ cout<<c; }~MyClass(){ cout<<'B'; }};int main() {MyClass p1,*p2;p2=new MyClass('X');delete p2;return 0;}执行这个程序屏幕上将显示输出( )。
A.ABX
B.ABXB
C.AXB
D.AXBB
第2题:
如下程序的输出结果是 #include<iostream> using namespace std; class MyClass{ public: MyClass(int i=0){cout<<1;} MyClass(const MyClass&x)}cout<<2;} }; int main( ){ MyClass objl(1),obj2(2),ohj3(objl); return 0; }
A.112
B.111
C.121
D.113
第3题:
有如下程序: #inClude<iostream> using namespaCe耐: Class MyClass{ publiC: MyClass{++Count;} ~MyClass{--Count;} statiC int getCount{retum Count;} private: statiC int Count; }; ‘ int MyClass::Count=0; int main { MyClass obj; Cout<<obj.getCount; MyClass+ptr=new MyClass: Cout<<MyClass::9etCount; ’delete ptr; Cout<<MyClass::9etCount; return 0; } 执行这个程序的输出结果是( )。
A.121
B.232
C.221
D.122
第4题:
有如下程序: #include<iostream> using namespace std; class MyClass{ public: MyClass(){++count;} ~MyClass(){--count;} static int getCount(){return count;} private: static int count; }; int MyClass::count=0; int main(){ MyCl
A.121
B.232
C.221
D.122
第5题:
有如下程序:
#include<iostream>
usingnamespacestd;
classMyClass{
public:
MyClass(){++count;)
~MyClass(){--count;)
staticintgetCount(){returncount;}
private:
staticintcount;
};
intMyClass::count=0;
intmain(){
MyClassobj;
cout<<obj.getCount();
MyClass*ptr=newMyClass;
cout<<MyClass::getCount();
deleteptr;
cout<<MyClass::getCount();
return0;
}
程序的输出结果是( )。
A.121
B.232
C.221
D.122