replaceWith(): a.replaceWith(c) 用a替换c
replaceAll(): a.replaceAll(c) 用a替换所有的c
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>05_替换节点.html</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <script type="text/javascript" src="./js/jquery-1.8.3.js"></script> <script type="text/javascript"> $(document).ready(function(){ //1.用"<span>许木木</span>"替换id为span1的span $("#span1").replaceWith("徐木木"); //2.用a标签替换全部class为span2的span $("<a href=‘#‘>xumumu</a>").replaceAll($(".span2")); }); </script> </head> <html> <p>姓名：<span id="span1"></span></p> <p>邮箱1：<span class="span2"></span></p> <p>邮箱2：<span class="span2"></span></p> </html> <script type="text/javascript"> </script> </html> <!-- replaceWith(content|fn) a.replaceWith(c); 用c替换a replaceAll(selector) a.replaceAll(c): 用a替换所有的c -->