【单选题】运行下列程序:Private Sub Command1_Click( )Dim s1 As String * 1Dim s2 As Strings1 = &quo
A.
运行下列程序: Private Sub Command1_Click( ) Dim s1 As String * 1 Dim s2 As String s1 = "a" For i = Asc(s1) To Asc(s1) + 4 s2 = s2 & Chr(i) Next i Print s2 End Sub 单击Command1命令按钮后,则在窗体上显示的结果是( )。 A.a