明显的有问题
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>删除元素</title> <script src="http://libs.baidu.com/jquery/1.9.0/jquery.js" type="text/javascript"></script> </head> <body> <h3>使用empty()方法删除元素</h3> <span class="green">香蕉</span> <span class="red">桃子</span> <span class="green">葡萄</span> <span class="red">荔枝</span> <script type="text/javascript"> $("span").empty(".green") </script> </body> </html>