源代码:
<!DOCTYPE html> <html> <head> <style> .siblings * { display: block; border: 2px solid lightgrey; color: lightgrey; padding: 5px; margin: 15px; } </style> <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $("h2").prevAll(".1,.2,.3").css({"color":"red","border":"2px solid red"}); }); </script> </head> <body> <div style="width:500px;" class="siblings"> <h3 class="3">h3 class "3"</h3> <span>span</span> <span class="2">span class "2"</span> <span class="2">span also class "2"</span> <p>p</p> <p class="1">p class "1"</p> <p>p</p> <h3>h3</h3> <h2>h2</h2> <span>span</span> <p>p</p> </div> <p>In this example, we return all elements with class names "1", "2" and "3", that are previous siblings of the li element with class name "start".</p> </body> </html>
运行结果：