rails_ajax 验证验证码
view
<div class="form-group ">
<%= rucaptcha_input_tag( class:'captcha-text',placeholder: '输入验证码') %>
<%= rucaptcha_image_tag(class:'image-box', alt: 'Captcha') %>
<%= image_tag("wrong.png",class:'wrong')%>
</div> <div class="form-
