导出调整

app/templates/shixun_work/shixun_work.html.erb

@@ -240,7 +240,7 @@
     window.onload = function() {
       console.debug("window.onload");
 
-      <% if @games %>
+      <% if @games.present? %>
         <% @games.map(&:id).each do |game_id| %>
         var ele = document.getElementById("content_show_<%= game_id %>");
         if (ele) {