<!DOCTYPE html> <html> <head lang="en"> <meta charset="UTF-8"> <title></title> <script src="Outer.js" type="text/javascript"></script> <script type="text/javascript"> alert("Hello"); </script> </head> <body> <a href="JavaScript:alert('运行JS脚本')">使用JavaScript脚本</a> </body> </html>
首先创建一个JS文件
/** * Created by admin on 2017/2/16. */ alert("这是外部的Hello Word")