隐藏复制学期的上传图片按钮

app/views/courses/_copy_course.html.erb

@@ -37,7 +37,7 @@
 <ul class="mt10">
   <%=labelled_form_for @new_course do |f| %>
     <input name="copy_course" value="<%=@course.id %>" style="display: none"/>
-    <li class="ml45 mb10"> <a href="javascript:void(0)" class="upimg fl"> <img alt="上传图片" id="avatar_image" src="images/courses/pic_courses.jpg" height="60" width="60"> </a> <a href="javascript:void(0)" class="upbtn fl ml30" onclick="$('#upload_course_logo').click();">上传图片</a>
+    <li class="ml45 mb10"> <a href="javascript:void(0)" class="upimg fl"> <img alt="上传图片" id="avatar_image" src="images/courses/pic_courses.jpg" height="60" width="60"> </a> <!--<a href="javascript:void(0)" class="upbtn fl ml30" onclick="$('#upload_course_logo').click();">上传图片</a>-->
       <!--</span>-->
       <div class="cl"></div>
     </li>