源代码:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Wfuyu教程(wfuyu.com)</title> <script type="text/javascript"> <!-- //--> </script> </head> <body> <p>点击以下链接查看结果：</p> <a href="javascript:void(alert('Warning!!!'))">点我!</a> </body> </html>
运行结果：