Thanks!
I solved the problem by this:
https://gist.github.com/drivenfaroff/7570106

Hi Rikard,

To split a post, I add some <!–nextpage–> between the content.
There is “Pages: 1,2,3,4” in the end of the post; however, I want it to be like below:

For example,
in page one: 1 2 3 4 next.
in page two: prev 1 2 3 4 next.
in page four: prev 1 2 3 4.

A “prev” and “next” before and after numbers, respectively.

Thanks,
debra

Can we add prev and next here?

Thanks!