<mip-form method="get" url="https://www.mipengine.org"> <input type="text" name="customnumber" validatetarget="custom" validatetype="custom" validatereg="^[0-9]*$" placeholder="我是自定义验证规则数字"> <div class="mip-form-target" target="custom">请输入正确的数字</div> <input type="submit" value="提交"> </mip-form>