设液体A能在液体B上铺展,则yB()yA+yA-B;若液体A在B表面上形成90°<θ<180°的接触角,则yB()yA+yA-B。
第1题:
(13)单击命令按钮时,下列程度的执行结果是 Private Sub Command1_Click() Dim a As Integer,b As Integer,c As Integer a=2:b=4:c=6 Call S2(a,b) Print"a=";a;"b=";b;"c=";c; End Sub Private Sub S1(x As Integer,y As Integer) Dim c As Integer x=2*x:y=y+2:e=x+y End Sub Sub S2(x As Integer,By Val y As Integer) Dim e As Integer x=2*x:y=y+2:e=x+y End Sub A.a=4 b=6 c=6 B.a=8 b=6 c=6 a=4 b=6 c=6 a=8 b=6 c=6 C.a=4 b=6 c=6 D.a=8 b=6 c=6 a=8 b=6 c=6 a=4 b=6 c=6
第2题:
(27)有下列两个过程: Sub S1(ByVal x As Integer,ByVal y As Integer) Dim t As Integer t=x x=y y=t End Sub Sub S2(x As Integer,y As Integer) Dim t As Integer t=x x=y y=t End Sub 则下列叙述中正确的是 A.用过程S1可以实现交换两个变量的值的操作,S2不能实现B.用过程S2可以实现交换两个变量的值的操作,S1不能实现 C.用过程S1和S2可以实现交换两个变量的值的操作 D.用过程S1和S2不能实现交换两个变量的值的操作
第3题:
( 27 )要想在过程 Proc 调用后返回形参 x 和 Y 的变化结果,下列定义语句中正确的是
A ) Sub Proc ( x as Integer,y as Integer )
B ) Sub Proc ( ByVal x as Integer, y as Integer )
C ) Sub Proc ( x as Integer,Byval y as Integer )
D ) Sub Proc ( Byval x as Integer, Byval y as Integer )
第4题:
Command1_Click()事件代码如下: Private Sub Command1_Click() Dim x As Integer, Y As Integer x = 6 : Y : 8 Call ABC(X, Y) Print X; Y End Sub Private Sub ABC(ByVal X As Integer,Y As Integer) X = X + 4 Y = Y = 2 End Sub 事件发生后,X和Y的值分别为 ______。
A.6, 8
B.10, 10
C.10, 8
D.6, 10
第5题:
A、Public Sub Sum(x ; y)
B、Public Sub Sum(ByVal x, ByVal y)
C、Public Sub Sum(x As Integer,y As Integer)
D、Public Sub Sum(x%, y%)
第6题:
(12)有下列Sub过程: Sub Sub(x As Single,y As Single) t=x x=t/y y=t Mody End Sub 在窗体上的命令按钮Commandl中,编写下列事件过程,执行该事件过程调用Sun过程,结果是( )。 Private Sub Commandl_Click() Dim a As Single Dim b As Single a=5 b=4 Sun a,b Print a;b End Sub A.1.25 1 B.5 4 C.4 5 D.1 1.25
第7题:
有如下SUB过程:
Sub s(x As Single,y As Single)
t=x
x=t / y
y=t Mod y
End Sub
在窗体上添加一个命令按钮,然后编写如下事件过程:
Private Sub Form_Click()
Dim a As Single
Dim b As Single
a=5
b=4
s a,b
Print a,b
End Sub
则程序运行后,单击命令按钮,输出的结果为【 】 。
第8题:
在窗体上画一个名称为Command1的命令按钮,然后编写如下事件过程: Private Sub Command1_Click() Sum=0 For x=1 To 5 Call subl(x, s) Sum=Sum+s Next x Print Sum End Sub Private Sub subl(y, w) w=1 For i=1 To y w=w*i Next i End Sub 程序运行后。单击命令按钮,则窗体上显示的内容是______。
A.5
B.120
C.153
D.160
第9题:
下面各被调用函数首部书写正确的是( )
A.void sub(float x;float y);
B.void sub(float x,y)
C.void sub(float x,float y)
D.void sub(float x,float y);
第10题:
有以下程序:
int sub(int n) { return(n/10+n%10); }
main()
{ int x, y;
scanf("% d", &x);
y=sub(sub(sub(x)));
printf("% d\n", y);
}
若运行时输入:1234<回车>,程序的输出结果是【 】。