题目

有如下VB程序段: Dim a(1 To 9) As String, k As Integer Dim s1 As String, s2 As String s1= Text1.Text:s2 = Text2.Text For i = 1 To Len(s1)     k = Val(Mid(s1, i,1))     a(k) = Mid(s2, i, 1) Next i For i=1 To 9     s=a(i)+s Next i Label1.Caption = s 在文本框Text1中输入“52463”,文本框Text2中输入“happy”, 执行该程序段后,标签Label1中显示的内容是(    ) A . happy B . yppah C . phpya D . Pyhpa 答案:C
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