diff --git a/public/javascripts/application.js b/public/javascripts/application.js
index b90011a4f..ce5a960cf 100644
--- a/public/javascripts/application.js
+++ b/public/javascripts/application.js
@@ -863,6 +863,10 @@ function redo() {
     window.location.reload()
 }
 
+function encodeHomeworkUrl(url){
+  var file = encodeURI(url).replace(/\+/g, '%2B');
+  return '/zipdown/download?file='+file;
+}
 
 //// 作业附件删除
 $(function(){
@@ -880,8 +884,7 @@ $(function(){
             }
 
             if(res.length==1){
-                var file = encodeURI(res[0].file).replace(/\+/g, '%2B');
-                location.href = '/zipdown/download?file='+file;return;
+                location.href = encodeHomeworkUrl(res[0].file);return;
             }
 
             document.getElementById('light').style.display='block';
@@ -894,7 +897,7 @@ $(function(){
                 } else {
                     des = '第'+res[i].index+'个学生的作品下载';
                 }
-                $('<li><span class="upload_box_span" >'+(i+1)+'.</span> <a href="/zipdown/download?file='+res[i].file+'">'+des+'</a><span class="c_grey">&nbsp;&nbsp;（共'+res[i].size+'M）</span> </li>').appendTo($container);
+                $('<li><span class="upload_box_span" >'+(i+1)+'.</span> <a href="'+ encodeHomeworkUrl(res[i].file) +'">'+des+'</a><span class="c_grey">&nbsp;&nbsp;（共'+res[i].size+'M）</span> </li>').appendTo($container);
 
             }
         }
@@ -911,7 +914,7 @@ $(function(){
             else
             {
                 if(res.length==1){
-                    location.href = '/zipdown/download?file='+res[0].file;return;
+                    location.href = encodeHomeworkUrl(res[0].file);return;
                 }
                 document.getElementById('light').style.display='block';
                 $container = $('#light .upload_box_ul');
@@ -923,7 +926,7 @@ $(function(){
                     } else {
                         des = '第'+res[i].index+'个学生的作品下载';
                     }
-                    $('<li><span class="upload_box_span" >'+(i+1)+'.</span> <a href="/zipdown/download?file='+res[i].file+'">'+des+'</a><span class="c_grey">&nbsp;&nbsp;（共'+res[i].size+'M）</span> </li>').appendTo($container);
+                    $('<li><span class="upload_box_span" >'+(i+1)+'.</span> <a href="'+ encodeHomeworkUrl(res[i].file) +'">'+des+'</a><span class="c_grey">&nbsp;&nbsp;（共'+res[i].size+'M）</span> </li>').appendTo($container);
 
                 }
             }