xxxxxxxxxx<html><head> <meta charset="utf-8"> <title>W3Cschool(w3cschool.cn)</title> </head><body><form action="/statics/demosource/demo-form.php"> E-mail: <input type="email" name="userid"><br> <input type="submit" value="提交"><br> <input type="submit" formnovalidate="formnovalidate" value="不验证提交"></form><p><strong>注意：</strong> Internet Explorer 9及更早IE版本,或Safari不支持 input 标签的 formnovalidate 属性。</p></body></html>