1 <!DOCTYPE html>
2 <html lang="en">
3 <head>
4 <meta charset="UTF-8">
5 <title>end</title>
6 <script type="text/javascript" src="jquery-1.11.3.min.js"></script>
7 </head>
8 <body>
9 <div><a></a></div>
10 <div><p></p></div>
11 <script type="text/javascript">
12 $(document).ready(function(){
13
14 //end()方法是回到前一次操作的状态
15 $("div:first").find("a").css({"width":"100px","height":"200px","background":"red","display":"block"}).end()
16 .css({"border":"1px solid red","width":"150px","height":"250px"});
17
18
19 //addBack()返回当前结果集和上一个结果集jquery 1.9,2.0
20 //$("div").children("p").addBack().css("border","10px solid blue");
21
22 //andSele()方法是jquery 1,9之前的方法,同样是返回当前和上一个结果集
23 $("div:odd").children("p").andSelf().css({"border":"10px solid blue","width":"100px","height":"100px"});
24 });
25 </script>
26 </body>
27 </html>