<%=link_to image_tag("../images/nav_logo.png",width:"51px", height: "45px",class: "mt3"), signin_path%>
<% name = name%>
<%= form_tag({controller: :welcome, action: :search },:class=>'navHomepageSearchBox', method: :get) do %>
" class="navHomepageSearchInput" placeholder="请输入关键词进行搜索" />
<% end %>