1， innerHTML与outerHTML
2， ntextmenu='return false' 屏蔽右键
3， insertAdjacentHTML
<html>
<head>
<title>htm insertAdjacentHTML插入新内容</title>
<script language="jscript">
function addsome()
{
document.all.paral.insertAdjacentHTML("afterBegin","<h1>在文本前容器内插入内容</h1>");
document.all.paral.insertAdjacentHTML("beforeEnd","<h2>在文本后容器内插入内容</h2>");
document.all.paral.insertAdjacentHTML("beforeBegin","<h4>在文本前容器外插入内容</h1>");
document.all.paral.insertAdjacentHTML("afterEnd","<h5>在文本后容器外插入内容</h2>");
}
</script>
</head>
<body onload="addsome()">
<div id="paral" style="fontsize:6;color='#ff00ff'">原来的内容</div><hr>
</body>
</html>