单项选择题
有如下事件过程:
Sub ABD(x%,y%,z%)
z%=X% +y%
End Sub
Private Sub Command1 _ Click( )
a%=30:b%=40
Call ABD(a%,b%,c%)
Print c%
End Sub
运行上面的程序,单击命令按钮,输出结果为
A.70
B.70.0
C.7.0E+1
D.显示错误信息
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单项选择题
循环链表的主要优点是
A.不再需要头指针了
B.从表中任一结点出发都能访问到整个链表
C.在进行插入、删除运算时,能更好的保证链表不断开
D.已知某个结点的位置后,能够容易的找到它的直接前件
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单项选择题
在以下事件过程中,可以在用户按下鼠标右键时,显示一个上边框,以鼠标当前位置为心的弹出式菜单,而且这个弹出式菜单还可以识别右键对菜单命令的选择,相应的选项;
A.Private Sub Form _ Mouse Up(Button As Integer,Shift AS Integer,_
X As Single,Y As Single)
If Button=2 Then
PopupMenu mnuEdit,vbPopupMenuCenterAlign Or_
vbPopupMenuRightButton,X,Y,mnuEditOpen
End If
End Sub
B.Private Sub Form _ MouseUp(Button AS Integer,Shift AS Integer,_
X As Single,Y As Single)
If Button=2 Then
PopupMenu mnuEdit,
End If
End Sub
C.Private Sub Form _ MouseUp(Button AS Integer,Shift AS Integer,_
X As Single,Y As Single)
PopupMenu mnuEdit,vbPopupMenuCenterAlign Or_
vbPopupMenuRightButton
End Sub
D.Private SUb Form _ MouseUp(Button AS Integer,_
Shift As Integer,X As Single,Y As Single)
If Button=2 Then
PopupMenu mnuEdit,2
End If
End Sub
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