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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>本教程(w3big.com)</title> <script src="http://cdn.static.w3big.com/libs/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $(".btn1").click(function(){ $("p").animate({bottom:"+=100px"}); }); $(".btn2").click(function(){ $("p").animate({bottom:"0"}); }); }); </script> </head> <body> <button class="btn1">动画</button> <button class="btn2">重置</button> <p style="position:absolute;bottom:0;">这是一个段落。</p> </body> </html>