类是一个支持集成的抽象数据类型,而对象是类的______。
参考答案:实例
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
在会计实务中,原始凭证按照填制手续及内容的不同,可以分为()。
A.外来原始凭证和自制原始凭证
B.收款凭证、付款凭证和转账凭证
C.一次凭证、累计凭证和汇总凭证
D.通用凭证和专用凭证