一种方法是使用StackPanel和单独的Textblock来完成它，如下所述：

http://blogs.msdn.com /b/devfish/archive/2013/04/22/superscript-subscript-in-xaml.aspx

你的用例究竟是什么？

Hi,

I want to know how we can use superscript and subscript in windows phone 8.

One approach is to simply do it with a StackPanel and separate Textblocks like described here: http://blogs.msdn.com/b/devfish/archive/2013/04/22/superscript-subscript-in-xaml.aspx

What exactlly is your use case?