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