可以通过JavaScript动态的改变HTML中的元素
向HTML中添加元素
首先需要创建一个标签,然后向该标签中添加相应的内容,然后将创建好的标签添加到相应的位置。
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<!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 >测试文档</ title > < script type = "text/javascript" > function add(){ var element = document.createElement("p"); var node = document.createTextNode("添加新段落"); 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
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<!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 >测试文档</ 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" >这是第二段</ p > </ div > < input type = "button" value = "删除" onclick = "deleteE()" /> </ body > </ html > |