<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>