Posted in jQuery onOctober 11, 2017
本文实例讲述了jQuery中过滤器的基本用法。分享给大家供大家参考,具体如下:
HTML正文:
<input type="button" id="b1" value="偶数行红色"><br> <input type="button" id="b2" value="奇数行绿色"><br> <table border=1 width="100px"> <tr><td>1</td><td>1</td><td>1</td><td>1</td></tr> <tr><td>2</td><td>2</td><td>2</td><td>2</td></tr> <tr><td>3</td><td>3</td><td>3</td><td>3</td></tr> <tr><td>4</td><td>4</td><td>4</td><td>4</td></tr> <tr><td>5</td><td>5</td><td>5</td><td>5</td></tr> </table><br> <input type="button" id="b3" value="奇数列红色"><br> <input type="button" id="b4" value="偶数列绿色"><br> <table border=1 width="100px"> <tr><td>1</td><td>1</td><td>1</td><td>1</td></tr> <tr><td>2</td><td>2</td><td>2</td><td>2</td></tr> <tr><td>3</td><td>3</td><td>3</td><td>3</td></tr> <tr><td>4</td><td>4</td><td>4</td><td>4</td></tr> <tr><td>5</td><td>5</td><td>5</td><td>5</td></tr> </table><br> <input type="button" id="b5" value="奇数元素绿色"><br> <table border=1 width="100px"> <tr><td>1</td><td>1</td><td>1</td><td>1</td><td>1</td></tr> <tr><td>2</td><td>2</td><td>2</td><td>2</td><td>2</td></tr> <tr><td>3</td><td>3</td><td>3</td><td>3</td><td>3</td></tr> <tr><td>4</td><td>4</td><td>4</td><td>4</td><td>4</td></tr> <tr><td>5</td><td>5</td><td>5</td><td>5</td><td>5</td></tr> </table>
Javascript操作代码:
$('#b1').click(function(){ /*table:eq(0) tr:even table:eq(0):筛选出第一张表格 tr:even:筛选出tr属性的对象 *注意table和tr对象中间有空格,表示从属关系 */ $('table:eq(0) tr:even').css("background","red"); }); $('#b2').click(function(){ $('table:eq(0) tr:odd').css("background","green"); }); $('#b3').click(function(){ $('table:eq(1) td:even').css("background","red"); }); $('#b4').click(function(){ $('table:eq(1) td:odd').css("background","green"); }); $('#b5').click(function(){ $('table:eq(2) td:even').css("background","green"); });
效果:
希望本文所述对大家jQuery程序设计有所帮助。
jQuery中过滤器的基本用法示例
- Author -
Zerone1993声明:登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述。
Reply on: @reply_date@
@reply_contents@