115S站长学院 TIY
编辑您的代码：
<!DOCTYPE HTML> <html> <body> <form action="http://zz.115s.com/example/html5/demo_form.asp" method="get"> Country code: <input type="text" name="country_code" pattern="[A-z]{3}" title="Three letter country code" /> <input type="submit" /> </form> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?72e1eb95f3722bd737488ab37f422304"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> </body> </html>
查看结果: