标准模块中有如下程序代码: Public x As Integer,y As Integer Sub var pub( ) x=10:y=20 End Sub 在窗体上有1个命令按钮,并有如事件过程: Private Sub Command1 Click( ) Dim x As Integer Call var pub x=x+100 y=y+100 Print x;y End Sub 运行程序后单击命令按钮,窗体上显示的是( )。
A.100 100
B.100 120
C.110 100
D.110 120
第1题:
以下程序的执行结果是【 】。
include<iostream. h>
class Sample
{
public:
int x:
int y;
void disp()
{
cout<<"x="<<x<<",y="<<y<<end1;
}
};
void main()
{
int Sample:: ** pc;
Sample s;
pc=& Sample: :x;
s.*pc=10;
pc:=&Sample: :y;
s.*pc=20;
s.disp();
}
第2题:
有以下程序:#include <iostream>using namespace std;class sample{private: int x; static int y;public: sample(int a); static void print(sample s);};sample:: sample(int a){ x=a; y+=x;}void sample:: print(sample s){ cout<<"x="<<s. x<<",y="<<y<<end1;}int sample:: y=0;int main(){ sample s1(10); sample s2(20); sample:: print(s2); return 0;}程序运行后的输出结果是( )。
A.x=10,y=20
B.x=20,y=30
C.x=30,y=20
D.x=30,y=30
第3题:
11、下面哪些定义是类型正确的?
A.f :: (Integer, Integer) -> Float f (x,y) = x / y
B.f :: (Integer, Integer) -> Float f (x,y) = (fromInteger x) / (fromInteger y)
C.f :: (Integer, Integer) -> Float f (x,y) = 3*x + y
D.f :: (Integer, Integer) -> Integer f (x, y) = 3*x + y
第4题:
以下程序的执行后,x和y的值是 ______ 。 #include <iostream. h> class Sample { public: int x; int y; void disp() { cout<<"x="<<x<<", y="<<y<<end1; } }; void main() int Sample: :*pc; Sample s; pc=&Sample:: x; s. *pc=10; pc=&Sample: :y; s. *pc=.20; s. disp ();
A.x=10, y=20
B.x=20, y=10
C.x=10, y=10
D.x=20, y=20
第5题:
有以下程序: #include <iostream> #include <cmath> using namespace std; class Distance; class point { public: friend class Distance; Point(int a,int B) { x=a; Y=b; } void Print() { cout<<"X= "<<X<<end1; cout<<"Y= "<<Y<<end1; } private: float X,Y; }; class Distance { public: float Dis(Point &p,Point &q); }; float Distance :: Dis(Point &p,Point &q) { float result; result=sqrt((p.X-q.X)*(p.X-q.X)+(p.Y-q.Y)*(p.Y-q.Y)); cout<<result<<end1; retUrn result; } int main() { Point p(10,10),q(10,30); Distance d; d.Dis(p,q); return 0; } 运行后的输出结果是( )。
A.10
B.30
C.0
D.20