https://css-tricks.com/snippets/jquery/smooth-scrolling/
下面这代码和文章内容无关
(function smoothscroll(){ var currentScroll = document.documentElement.scrollTop || document.body.scrollTop; if (currentScroll > 0) { window.requestAnimationFrame(smoothscroll); window.scrollTo (0,currentScroll - (currentScroll/5)); } })();
提示:你可以先修改部分代码再运行。