Dim a As String = "得得的的得得的的但是测试内容得得的的得得的的但是测试内容得得的的得得的的但是测试内容得得的的得得的的但是测试内容"
Dim b As Integer = a.Length
Dim s As Integer =5
Dim c As Integer = Int(a.Length/s)*s-s
If b = s Then
Output.Show(a)
ElseIf b > s Then
For d As Integer = 0 To c Step s
Output.Show(a.SubString(d,s))
Next
If b > c+s Then Output.Show(a.SubString(c+s))
Else
Output.Show("分割数量不得大于字数")
End If