使用document.write()输出文本
<!DOCTYPE html >
<html>
<head>
<meta charset="utf-8">
<title>自学教程(如约智惠.com)</title>
<style >
</style>
</head>
<body >
<script type="text/javascript">
document.write("Hello World!")
</script>
</body>
</html>
使用document.write()输出文本
<!DOCTYPE html >
<html>
<head>
<meta charset="utf-8">
<title>自学教程(如约智惠.com)</title>
<style >
</style>
</head>
<body >
<script type="text/javascript">
document.write("<h1>Hello World!</h1>")
</script>
</body>
</html>
返回文档中锚的数目
<!DOCTYPE html >
<html>
<head>
<meta charset="utf-8">
<title>自学教程(如约智惠.com)</title>
</head>
<body >
<a name="html">HTML 教程</a>
<a name="css">CSS 教程</a><br>
<a name="xml">XML 教程</a><br>
<a href="/js/">JavaScript 教程</a>
<p>锚的数量:
<script type="text/javascript">
document.write(document.anchors.length);
</script>
</p>
</body>
</html>