s1 = "algorithm"
If Len(s1) Mod 2 = 1 Then
i = Len(s1) \ 2: j = Len(s1) \ 2 + 2
s2 = Mid(s1, i + 1, 1)
Else
i = Len(s1) \ 2: j = Len(s1) \ 2 + 1
End If
Do While i >= 1
If Mid(s1, i, 1) > Mid(s1, j, 1) Then
s2 = Mid(s1, i, 1) + s2
Else
s2 = s2 + Mid(s1, j, 1)
End If
i = i - 1: j = j + 1
Loop
Label1.Caption = s2
执行该程序段后，标签Label1上显示的内容是（ ）
