<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> </head> <body> <input type="button" value="来张图片" id="bt"/> <div id="dv"></div> <script src="common.js"></script> <script> my$("bt").onclick = function () { my$("dv").innerHTML = "<img src='images/liuyan.jpg' alt='柳岩'/>"; }; </script> </body> </html>