diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index 5d1345f24..2e85d8a72 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -130,7 +130,12 @@ class AttachmentsController < ApplicationController
   def download
     # modify by nwb
     # 下载添加权限设置
-    candown = attachment_candown @attachment
+    if params[:type] == "wechat"
+      candown = true
+    else
+      candown = attachment_candown @attachment
+    end
+
     if candown || User.current.admin? || User.current.id == @attachment.author_id
       if stale?(:etag => @attachment.digest)
         if params[:preview] == 'true'
diff --git a/public/assets/wechat/class.html b/public/assets/wechat/class.html
index 88ef967e9..836575b90 100644
--- a/public/assets/wechat/class.html
+++ b/public/assets/wechat/class.html
@@ -230,7 +230,7 @@
     </div>
 
     <div ng-class="{'undis': !showResources}">
-        <div ng-repeat="r in resources|filter:searchText" ng-class="['class-detail-row', 'f13', 'c-grey3', {'border-top': $first}]"><img src="/images/wechat/courseware.png" width="15" class="ml10 fl" /><a ng-href="{{g_localhost}}/attachments/download/{{r.id}}/{{r.filename}}" target="_blank" class="fl ml10 resource-width">{{r.filename}}</a><a ng-show="isTeacher" herf="javascript:void(0);" class="fr mr10 link-blue2" ng-click="sendFile(r,1)">发送</a><div class="cl"></div></div>
+        <div ng-repeat="r in resources|filter:searchText" ng-class="['class-detail-row', 'f13', 'c-grey3', {'border-top': $first}]"><img src="/images/wechat/courseware.png" width="15" class="ml10 fl" /><a ng-href="{{g_localhost}}/attachments/download/{{r.id}}/{{r.filename}}?type=wechat" target="_blank" class="fl ml10 resource-width">{{r.filename}}</a><a ng-show="isTeacher" herf="javascript:void(0);" class="fr mr10 link-blue2" ng-click="sendFile(r,1)">发送</a><div class="cl"></div></div>
         <p ng-show="resources_tag == true && resources.length<=0" class="class-test-tip">暂无课件，<br />
             请登录Trustie网站，在PC浏览器中上传课件。</p>
     </div>
diff --git a/public/assets/wechat/myresource.html b/public/assets/wechat/myresource.html
index 718e3c278..1848dad60 100644
--- a/public/assets/wechat/myresource.html
+++ b/public/assets/wechat/myresource.html
@@ -12,7 +12,7 @@
 
     <div ng-class="{'undis': currentTab!=1}">
         <div ng-repeat="r in resources|filter:{filename:searchText}" ng-class="['class-detail-row', 'f13', 'c-grey3', {'border-top': $first}]">
-            <img src="/images/wechat/courseware.png" width="15" class="ml10 fl" /> <a ng-href="{{g_localhost}}/attachments/download/{{r.id}}/{{r.filename}}" target="_blank" class="fl ml10 resource-width">{{r.filename}}</a><a ng-show="r.current_user_is_teacher" ng-click="sendFile(r,1)" class="fr mr10 link-blue2">发送</a><div class="cl"></div>
+            <img src="/images/wechat/courseware.png" width="15" class="ml10 fl" /> <a ng-href="{{g_localhost}}/attachments/download/{{r.id}}/{{r.filename}}?type=wechat" target="_blank" class="fl ml10 resource-width">{{r.filename}}</a><a ng-show="r.current_user_is_teacher" ng-click="sendFile(r,1)" class="fr mr10 link-blue2">发送</a><div class="cl"></div>
             <span class="f12 mt5 ml35 c-grey4 fl courseware-from-width hidden">课件来源：{{r.coursename}}</span><span class="f12 ml10 mt5 c-grey4 fl">大小：{{r.attafile_size}}</span><div class="cl"></div>
         </div>
         <div ng-if="has_more">