通过JavaScript动态变化HTML元素
至HTML加元
首先需要创建一个标签,然后添加到标签中的相应的内容。然后创建添加到相应的位置好标签。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>測试文档</title> <script type="text/javascript"> function add(){ var element = document.createElement("p"); var node = document.createTextNode("加入新段落"); element.appendChild(node); x = document.getElementById("demo"); x.appendChild(element); } </script> </head> <body> <div id="demo"> <p>这是第一段</p> </div> <input type="button" value="按钮" onclick="add()" /> </body> </html>
删除HTML中的某个元素
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>測试文档</title> <script type="text/javascript"> function deleteE(){ var father = document.getElementById("demo"); var child = document.getElementById("p1"); father.removeChild(child); } </script> </head> <body> <div id="demo"> <p id="p1">这是第一段</p> <p id="p2">这是第二个段</p> </div> <input type="button" value="删除" onclick="deleteE()" /> </body> </html>
时间: 2024-10-20 03:13:24