主题：对计算结果重复运算

 其实这个问题不太复杂吧？

Dim d As String = 3
Dim T As String
Dim temp As String = d
For i As Integer = 0 To 99
    d = temp
    temp = Functions.Execute("hd", temp)
    If d = temp Then
        T = temp
        Exit For
    End If
Next
Output.Show(T)