执行以下程序后输出的是。 Private Sub Commandl_Click ch$ = "ABCDEFGH": Print Mid(Right(ch$,
执行以下程序后输出的是。 Private Sub Commandl_Click ch$ = "ABCDEFGH": Print Mid(Right(ch$, 6), Len(Left(ch$, 4)), 2) End Sub A.CDEFGH B.ABCD C.FG D.AB
执行以下程序后输出的是。 Private Sub Commandl_Click ch$ = "ABCDEFGH": Print Mid(Right(ch$, 6), Len(Left(ch$, 4)), 2) End Sub A.CDEFGH B.ABCD C.FG D.AB
有以下程序:
#include<iostream>
usingnamespacestd;
classA
{private:
inta:
public:
A(inti)
{a=i;}
voiddisp()
{cout<<a<<",";));
classB
(private:
intb;
public:
B(intj)
{b=j;}
voiddisp()
{cout<<b<<",";}};
classC:publicB,publicA
{private:
intC;
public:
c(intk):A(k-2),B(k+2)
{c=k;
}
voiddisp()
{
a::disp();
B::disp();
COUt<<c<<endl;
}
};
intmain()
{
Cobj(10);
obj.disp();
return0;
}
程序执行后的输出结果是()。
A.10,10,10
B.10,12,14
C.8,10,12
D.8,12,10
A.10,10,10
B.10,12,14
C.8,10,12
D.8,12,10
有以下程序:
#include<iostream>
usingnamespacestd;
#defineP13.14
classPoint
{private:
intX,y;
public:
Point(inta,intb)
{x=a:
y=b;}
intgetx()
{returnX;}
intgety()
{returny;}};
classCircle:publicPoint
{private:
intr;
public:
Circle(inta,intb,intc):Point(a,b)
{r=C;}
intgetr()
{returnr;}
doublearea()
{returnPI*r*r;}};
intmain()
(Circlec1(5,7,10);
cout<<c1.area()<<endl;
return0;}
程序执行后的输出结果是()。
A.314
B.157
C.78.5
D.153.86
A.314
B.157
C.78.5
D.153.86
有以下程序 #include<iostream> using namespace std; class Base { private: char c; public: Base(char n):c(n){} ~Base() { cout<<c; } }; class Derived:public Base { private: char c; public: Derived(char n):Base(n+1),c(n){} ~Derived() { cout<<c; } }; int main() { Derived obj('x'); return 0; } 执行后的输出结果是
A.xy
B.yx
C.x
D.y
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 j) { b=j; } void disp() { cout<<b<<","; } }; class C : public B,public A { private: int c; public: C(int k) :A(k-2),B(k+2) { c=k; } void disp () { A::disp (); B::disp (); cout<<c<<endl; } }; int main () { C obi (10); obj.disp (); return 0; } 程序执行后的输出结果是
A.10,10,10
B.10,12,14
C.8,10,12
D.8,12,10
有以下程序; #include<iostream> usingnamespacestd; classComplex { public: Complex(doubler=0,doublei=O):re(r),im(i){} doublereal()const{returnre;} doubleimag()const{returnim;} Complexoperator+(Complexc)const {returnComplex(re+C.re,im+C.im);} private: doublere,im; }; intmain() { Complexa=Complex(1,1)+Complex(5); cout<<a.real()<<+<<a.imag()<<i<<endl; return0; } 程序执行后的输出结果是()。
A.6+6i
B.6+1i
C.1+6i
D.1+1i
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<<s<<end1; } }; int myClass::s=0; int main () { myClass a(1),b(2),c(3); a.add(); b.add(); c.dislay(); return O; } 程序执行后的输出结果是()。
A.1
B.4
C.3
D.7
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 j) { b=j; } void disp() { cout<<b<<","; } }; class C: public B,public A { private: int c; public: C(int k):A(k-2),B(k+2) { c=k; } void disp() { A::disp(); B::disp(); cout<<c<<end1; } }; int main() { C obj(10); obj.disp(); return 0; } 程序执行后的输出结果是
A.10,10,10
B.10,12,14
C.8,10,12
D.8,12,10