删除DOM节点
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
function em() {
//alert("asdhj");
var parent=document.getElementById("parent");
var child=document.getElementById("child");
parent.removeChild(child);
var lis=document.getElementsByTagName("li");
lis[lis.length-1].id="child";
}
</script>
</head>
<body>
<button onclick="em()">点击删除</button>
<ul id="parent">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
<li>7</li>
<li>8</li>
<li>9</li>
<li id="child">10</li>
</ul>
</body>
</html>
运行结果就是全删没了：
