51help TIY
码：
<!DOCTYPE html> <html> <head> <script src="../../ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js" tppabs="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script> <script> $(document).ready(function(){ $("#btn1").click(function(){ $("#test1").text(function(i,origText){ return "Old text: " + origText + " New text: Hello world! (index: " + i + ")"; }); }); $("#btn2").click(function(){ $("#test2").html(function(i,origText){ return "Old html: " + origText + " New html: Hello <b>world!</b> (index: " + i + ")"; }); }); }); </script> </head> <body> <p id="test1">这是<b>粗体</b>文本。</p> <p id="test2"><b>粗体</b>文本。</p> <button id="btn1">显示旧/新文本</button> <button id="btn2">显示旧/新 HTML</button> </body> </html>
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