<html><head><script src="/jquery/jquery-1.11.1.min.js"></script><script>$(document).ready(function() { $("button").click(function(){ $("#p1").css("color","red").slideUp(2000).slideDown(2000); });});</script></head><body><p id="p1">jQuery 乐趣十足！</p><button>点击这里</button></body></html>