动态的？

app/views/users/_course_message.html.erb

@@ -89,7 +89,7 @@
   <div class="homepagePostReply">
     <div class="homepagePostReplyBanner">
       <div class="homepagePostReplyBannerCount">回复
-        <sapn class="mr15"><%= count>0 ? "（#{count}）" : "" %></sapn><span style="color: #cecece;">?</span>
+        <sapn class="mr15"><%= count>0 ? "（#{count}）" : "" %></sapn><span style="color: #cecece;">▪</span>
         <span id="praise_count_<%=user_activity_id %>">
           <% if activity.author == User.current %>
             <span class="ml15 likeButton" title="不能自己赞自己哦！"> <span class="likeText">赞</span><span class="likeNum"><%= get_praise_num(activity) > 0 ? "（#{get_praise_num(activity)}）" : "" %></span></span>