在窗体上画一个命令按钮,然后编写如下事件过程: Private Sub Command1_Click() Dim a() a=Array(1,3,5,7) s=0 For i=1 To 3 s=s*10+a(i) Next i Print s End Sub 程序运行后,输出结果为()。
A.135
B.357
C.531
D.753
A.1,-1,3
B.0,0,3
C.0,-1,2
D.1,0,3
下列程序的输出结果为()。 S1=”1”:S2=”2”:SI=Val(S1)+Val(S2):S2=Val(”12”) If S1<>S2 Then P int S1-S2 Else Print S2-S1
A.-9
B.9
C.-12
D.0
有下列程序,程序运行后单击命令按钮,则输出的结果为()。Private Sub Command1_Click()Dim a%(1 To 4),b%(3 To 6),i%,s1#,s2# For i=1 To 4 a(i)=i Next i For i=3 To 6 b(i)=i Next i s1=Factorial(A) s2=Factorial(B)Print "s1=";s1;"s2=";s2End SubFunction Factorial(a()As Integer)Dim t#,i% t=1 For i=LBound(A)To UBound(A) t=t*a(i) Next i Factorial=tEnd Function
A.s1=360 s2=24
B.s1=24 s2=360
C.s1=24 s2=24
D.s1=360 s2=360
下面程序的输出结果为() struct st { int x; int *y; } *p; int dt[4]={10,20,30,40}; struct st aa[4]={50,&dt[0],60,&dt[1], 70,&dt[2],80,&dt[3]}; main() { p=aa; printf("%d\n",++p->x); printf("%d\n",(p)->x); printf("%d\n",++(*p->y)); }
A.10 20 20
B.50 60 21
C.51 60 21
D.60 70 31
下面运行程序后,单击命令按钮,输出的结果是 【 】 。
Private Sub Command1_Click()
Dim a%(1 To 5),i%, s#
For i=1 To 5
a(i)=i
Next
s=Fun(a)
Print "s="; s;
End Sub
Function Fun(a() As Integer)
Dim t#, i%
t=1
For i=LBound(a) To UBound(a)
t=t a(i)
Next
Fun=t
End Function
为使下列程序的正确输出结果为: Now is 2004-7-6 12:12:12 那么应该在程序划线处填入的语句是()。 #include <iostream> using namespace std; class TIME; class DATE { public: DATE(int y=2004,int m=1,int d=1) { year=y; month=m; day=d; } void DateTime(TIME &t); private: int year,month, day; }; class TIME { public: TIME(int h=0,int m=0,int s=0) { hour=h; minute=m; second=s; } ______________; //将类 DATE 中成员函数 DateTime 声明为类 TIME 的友元函数 private: int hour,minute, second; }; void DATE: :DateTime(TIME &t) { cout<<"Now is "<<year<<'-'<<month<<'-'<<day<< ' '<<t.hour<<":"<<t.minute<<': '<<t.seoond<<'.'<<end1; } int main () { DATE d(2004,7,6); TIME t (12, 12, 12); d. DateTime (t); return 0; }
A.friend void DateTime(TIME &t);
B.friend void DATE::DateTime(TIME &0;
C.void DateTime(TIME &t);
D.friend void DateTime(TIME &t);
下面程序的输出结果是()。 #include<iostream> using namespace std; void swap(int x[2]) { int t; t=x[0]; x[0]=x[1]; x[1]=t; } void main() { int a[2]={4,8}; swap(a); cout<<a[0]<<" "<<a[1]; }
A.4 8
B.8 4
C.4 4
D.8 8
A.32
B.26
C.10
D.4
设有如下程序,其调试结果为:
class Q2 {
public static void main(String[] args) {
int[] seeds = {1,2,3,4,6,8};
int n= seeds.length;
for (int i = 0; i< 3; i++)
for (int k = 0; k< n-1; k++)
seeds[k]= seeds[k+1];
for (int i = 0; i
System.out.print("/t"+seeds[i]);
}
}
A.输出: 1 2 3 4 6
B.输出: 4 6 8 8 8
C.输出: 2 3 4 6 8
D.输出: 2 3 4 6
下面程序的执行结果为 ‘ #include"iostream" using namespace std; class A { int a; public: void Sera(int x){a=x;} void Display_a(){cout<<a<<endl;} }; class B { int b; public: void Setb(int x){ b=x;} void Dispaly_b() {cout<<b<<endl;} }; class C:public A,private B { private: int c; public: void Setc(int x,int y,int z) { c=z;Sera(x);Serb(y);} void Display_c(){cout<<c<<endl;} }; ① void main() ② { ③ C cc; ④ cc.Seta(1); ⑤ cc.Display_a(); ⑥ cc.Setc(2,2,3); ⑦ cc.Dispaly_b(); ⑧ cc.Display_c(); }
A.输出为2 2 3
B.有错误在第5行
C.输出为1 2 3
D.有错误在第7行