评分保留两位小数点

app/views/homework_attach/_homework.html.erb

@@ -35,7 +35,7 @@
 <li class="wscore">
   <%= is_student_batch_homework ? l(:label_my_score) : l(:label_student_score)%>:
   <span class="c_red">
-    <%= is_student_batch_homework ? (homework.m_score.nil? ? l(:label_without_score) : homework.m_score) : (homework.s_score.nil? ? l(:label_without_score) : homework.s_score)%>
+    <%= is_student_batch_homework ? (homework.m_score.nil? ? l(:label_without_score) : format("%.2f",homework.m_score)) : (homework.s_score.nil? ? l(:label_without_score) : format("%.2f",homework.s_score))%>
   </span>
 </li>
 <% if is_teacher %>