匿评评分之后，我耳朵评分显示为黑色

app/views/student_work/_evaluation_work.html.erb

@@ -18,8 +18,8 @@
   <li class=" hwork_tit_e" style="width: 440px">
     <%= link_to student_work.name, student_work_path(student_work),:remote => true%>
   </li>
-  <li class=" hwork_code <%= student_work.teaching_asistant_score.nil? ? 'c_grey' : 'c_red'%>">
+  <% my_score = student_work_score(student_work,User.current) %>
-    <% my_score = student_work_score(student_work,User.current) %>
+  <li class=" hwork_code <%= my_score.nil? ? 'c_grey' : 'c_red'%>">
     <%= my_score.nil? ? "--" : format("%.2f",my_score.score)%>
   </li>
   <div class="cl"></div>