<html> <head> <meta charset="UTF-8"> <title>b</title> <script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script> <script type="text/javascript"> function ff(){ var img = document.createElement("img"); img.src = "https://tomcat.apache.org/images/tomcat.png"; img.onclick = function(){ show(this) }; $("body").append(img); } function show(obj){ alert(obj.src); } </script> </head> <body> <span onclick="ff()">胜多负少</span> </body> </html>