设有如下通用过程: Public Function Fun(xStr As Str
问题:
设有如下通用过程:
Public Function Fun(xStr As String)As String
Dim tStr As String, strL As Integer
tStr = " "
strL = Len (xStr)
i = strL / 2
Do While i < = strL
tStr = tStr & Mid(xStr, i + 1, 1)
i=i+1
Loop
Fun = tStr & tStr
End Function
在窗体上画一个名称为Text1的文本框和一个名称为Command1的命令按钮。然后编写如下的事件过程:
Private Sub Command1_Click()
Dim S1 As String
S1 = "ABCDEF"
Text1. Text = LCase (Fun(S1))
End Sub
程序运行后,单击命令按钮,文本框中显示的是( )。
A) ABCDEF
B) abcdef
C) defdef D) defabc