W3School TIY
编辑您的代码：
<html> <head> <script type="text/javascript"> function getEventTrigger(event) { x=event.target; alert("The id of the triggered element: " + x.id); } </script> </head> <body > <p id="p1" onmousedown="getEventTrigger(event)"> Click on this paragraph. An alert box will show which element triggered the event.</p> </body> </html>
查看结果: