设有如下通用过程:Pubfic Function Fun(xStr As String)As StringDim tStr As String,strL As In
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设有如下通用过程:
Pubfic Function Fun(xStr As String)As String
Dim tStr As String,strL As Integer
tstr=“”
strL=Len(xStr)
i=1
Do While i<=strL/2
tStr=tStr&Mid(xStr,i,1)&Mid(xStr,strL-i+1,1)
i=i+1
Loop
Fun=tStr
EndFunction
在窗体上画一个名称为Commandl的命令按钮。然后编写如下的事件过程:
Private Sub Commandl_Click()
Dim S1 As String
S1=“abcdef”
Print UCase(Fun(S1))
End Sub
程序运行后,单击命令按钮,输出结果是
A.ABCDEF
B.abedef
C.AFBECD
D.DEFABC
参考答案: