​x
 
<!DOCTYPE html>
<html>
<body>
​
<h1>JavaScript HTML DOM</h1>
​
<p>Hello World!</p>
​
<p>Hello China!</p>
​
<p id="demo"></p>
​
<script>
var myCollection = document.getElementsByTagName("p");
document.getElementById("demo").innerHTML =
"第二段的 innerHTML 是：" +
myCollection[1].innerHTML;
</script>
​
</body>
</html>
​