jquery選擇器之偽類選擇器
阿新 • • 發佈:2018-12-26
偽類選擇器:
:nth-child的用法:
nth-child是一個css3偽類選擇符,在jQuery中被實現了,在Jquery API中對nth-child的定義是:”匹配其父元素下的第N個子或奇偶元素“。
例 偽類nth-child實現隔行換色
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>jQuery實現隔行變色</title> <script language="javascript" type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> <style type="text/css"> </style> <script type="text/javascript"> $(function(){ $("#tbEmp tr:nth-child(even)").addClass("trOdd"); $('#tbEmp tr:nth-child(odd)').css("color","red"); $('#tbEmp tr:nth-child(even)').css("color","blue"); }); </script> </head> <body> <table id="tbEmp" cellpadding="0" cellspacing="0"> <tbody > <tr><td>1</td></tr> <tr><td>2</td></tr> <tr><td>3</td></tr> <tr><td>4</td></tr> <tr><td>5</td></tr> <tr><td>6</td></tr> </tbody> </table> </body> </html>