<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Required From Group</title> <link rel="stylesheet" href="demo.css"> </head> <body> <form class="form" data-validator-option="{timely:2,showOk:''}"> <div class="form-item"> <input type="text" class="contact" name="mobile" placeholder="手机号" data-rule="required(from, .contact); mobile" data-msg-required="请至少填写一种联系方式"> </div> <div class="form-item"> <input type="text" class="contact" name="tel" placeholder="电话" data-rule="required(from, .contact); tel"> </div> <div class="form-item"> <input type="text" class="contact" name="email" placeholder="邮箱" data-rule="required(from, .contact); email"> </div> <div class="form-item"> <button type="submit">提交</button> </div> </form> <script src="https://cdn.jsdelivr.net/jquery/1.12.3/jquery.min.js"></script> <script src="../dist/jquery.validator.min.js?local=zh-CN"></script> </body> </html>