源代码:
<!DOCTYPE html> <html> <head> <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"> </script> <script> $(document).ready(function(){ $(window).unload(function(){ alert("Goodbye!"); }); }); </script> </head> <body> <p>When you click <a href="http://wfuyu.com">this link</a>, or close the window, an alert box will be triggered.</p> </body> </html>
运行结果：