The biggest advantage is that no matter which page you turn to, the link to the first page is always displayed, because this is the customer page that pays the most... As for the bottom of the list, although the SEO perspective believes that showing more than a few more interesting, but Ali believes that showing too many links at a time is not conducive to the front of the list click rate, so the current page after the display can only show a few. As for the common "last page", I'm sorry, who cares about you on the last page? I don't give you a chance.