一千萬個為什麽

我的問題很簡單。我可以添加任何一個打擊

:prompt => "Any"
:include_blank => true

到form_tag中的表單。

這是一個例子。我想添加：提示輸入select_tag：condition和select_tag：category字段，我遇到了麻煩。

:get do %>
• 'main_search_icon' ) %>
• "main_field" %>
• 'main_submit', :id => "main_submit" %>
</div>

If I can't do it the way I want, how can I add a field at the top of the select boxes that has the text "Any" but has no value when the form is submitted?

Thanks in advance!