更多"执行这个程序的输出结果是( );
#include<iostre"的相关试题:
[填空题]以下程序的执行结果是 【14】 。
#include<iostream>
using namespace std;
class base
{
public:
virmal void who( ){cout<<"Base Class"<<endl;)
};
class Derivedl:public Base
{
public:
virtual void who( ){cout<<"Derivedl Class"<<endl;}
};
class derived2:public Base
{
public:
virtual void who( ){cout<<"Derived2 Class"<<endl;)
};
int main(int argc,char*argv[])
{
base obj1,*P;
deliVedl obj2;
derived2 obj3;
p=&obj1; p->who( );
p=&obj2; p->who( );
p=&obj3; p->who( );
return 0;
}
[单项选择]执行下面程序后输出的结果是( )。
#include <iostream>
using namespace std;
int main( )
int a[4][4]=1,2,3,-4,7,-12,-13,8,-21,9,0,-24,-31,10,-33,11;
int i,j,s=0;
for(i=0;i<4;i++)
for(j=0;j<4;j++)
if(a[i][j]>=0)continue;
s+=a[i][j];
coat<<s<<endl;
return 0;
A. 141
B. -138
C. -1
D. 75
[单项选择]以下程序执行后的输出结果是( )。
#include <iostream>
using namespace std;
void try(int,int,int,int);
int main( )
int x,y,z,r;
x=1;
y=2;
try(x,y,z,r);
cout<<r<<endl;
return 0;
void try(int x,int y,int z,int r)
z=x+y;
x=x*x;
y=y*y;
r=z+x+y;
A. 18
B. 9
C. 不确定
[单项选择]以下程序的输出结果是 ( )。
#include <iostream>
using namespace std;
int f(int b[],int m, int n)
int i,s = O;
for(i = m;i<n;i+=2)
s+=b [i];
return s;
int main ( )
int x a[] = 1,2,3,4,5,6,7,8,9;
x = f(a,3,7);
cout<<x<<end1;
return 0;
A. 10
B. 18
C. 8
D. 15
[填空题]下列程序的输出结果是 【14】
#include<iOStream>
using namespace std;
template <typename T>
T total (T*datA)
{
T s=0;
while(*datA)
{
s+=*data++;
}
return s;
}
int main( )
{
int x[]={2,4,6,8,0,12,14,16,18};
cout<<total(x)<<end1;
return 0;
}
[单项选择]下列程序的输出结果是( )。
#include<iostream>
using namespace std;
class TestClass
static int i;
public:
TestClass( )i++;
~TestClass( )i--;
static int getVal( )retum i;
;
int TestClass∷i=0;
void fun( )TestClass ob2;cout<<ob2.getVal( );
int main( )
TestClass obi;
fun( );
TestClass*ob3=new TestClass;cout<<ob3->getVal( );
delete ob3;cout<<TestClass∷getVal( );
retum 0;
A. 111
B. 121
C. 211
D. 221
[填空题]执行这个程序的输出结果是( );
#include<iostream>
using namespace std;
class TestClass1
public:
void fun1( )cout<<"TestClass1/n";
virtual void fun2( )cout<<"TestClass1/n";
;
class TestClass2:public TestClass1
public:
void fun1( )cout<<"TestClass2/n";
void fun2( )cout<<"TestClass2/n";
;
void f(TestClass1&b)b.fun1( );b.fun2( );
int main( )
TestClass2 obj;
f(obj);
return 0;
[填空题]下面程序的输出结果是 【8】 。
#include <iostream>
using namespace std;
int d=1;
fun(int p){
static int d = 5;
d+ =p;
cout<<d;
return (d) ;
}
void main ( ) {
int a =3;
cout<<fun ( a + fun (d) )<<endl;
}
[填空题]下面程序的输出结果是 【15】 。
#include<iostream>
using namespace std;
class base
{
protected:
int a;
public:
base( ){cout<<"0":}
};
class base1:virtual public base
{
public:
base1( ){cout<<"1";}
};
class base2:virtual public base
{
public
base2( ){cout<<"2";
};
class derived:public base1,public base2
{
public:
derived( ){cout<<"3";}
}
int main( )
{
derived obj;
cout<<end1;
return 0;
}
[填空题]下列程序的输出结果是 【10】 。
#include<iostream>
using nameSpace std;
int main( )
{
int data=1;
int &r=data;
data+=5;
r+=5;
cout<<data<<end1;
return 0;
}
[填空题]下面程序的运行结果是 【9】 。
#include <iostream>
using namespace std;
void fun(int &a, int b=3)
{
static int i=2;
a = a + b + i;
i = i + a;
}
int main( )
{
int x=5, y=2;
fun(x, y);
cout<<x<<",";
fun(x);
cout<<x<<end1;
return 0;
}
[填空题]下列程序的输出结果是 【11】 。
#inClude<iostream>
using namespace std;
class Test {
public:
Test( ) {cnt++;}
~Test( ){cnt--;}
static int Count( ) {return cnt;}
private:
static int cnt;
};
int Test::cnt=0;
int main( )
{
cout<<Test::Count( )<<”;
Test t1,t2;
Test*pT3=new Test;
Test*pT4=new Test;
cout<<Test::Count( )<<’’;
delete pT4;
delete pT3;
cout<<Test::Count( )<<endl;
return 0;
}
[填空题]下列程序的输出结果是 【10】 。
#inClude<iostream>
using namespace std;
int main( )
{
int i=5;
int &r=i;r=7;
cout<<i<<endl;
return0;
}
[填空题]下面程序运行输出的结果是 【9】 。
#include <iostream>
using namespace std;
int main( )
char a[]="Chinese";
a[3]=’/0’;
cout<<a<<endl;
return 0;