<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/ html4/strict.dtd">
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"><title>超链接——JavaScript链接</title></head><body><a href="javascript:alert('Hello World!');">点击弹窗</a></body>
</html>
运行结果
![[Drupal] How to add the js file and js code block in Drupal](https://images.cnblogs.com/OutliningIndicators/ExpandedBlockStart.gif)
