fix bug

apps/classroom/Tpl/default/Index/theme_x7_w3g.html

@@ -119,7 +119,7 @@
 									</if>
 									<else />
 									<if condition="$vo['price'] eq 0 or $vo['is_buy'] eq 1">
-										<div @click="onDownload('{$vo['exams_paper_title']}', {$vo['attach']})" class="home_button_green layout_center">下载试题</div>
+										<div @click="onDownload('{$vo['exams_paper_title']}', '{$vo['attach']}')" class="home_button_green layout_center">下载试题</div>
 										<else />
 										<div @click="showYulan({$vo['exams_paper_id']})" class="home_button_orange layout_center">下载预览</div>
 									</if>
@@ -133,7 +133,7 @@
 										<else />¥{$vo['price']}</if>
 								</span>
 								<if condition="$vo['price'] eq 0 or $vo['is_buy'] eq 1">
-									<van-image @click="onDownload('{$vo['exams_paper_title']}', {$vo['attach']})" src="__THEME__/img/down_load_icon.png" width="13" height="16"></van-image>
+									<van-image @click="onDownload('{$vo['exams_paper_title']}', '{$vo['attach']}')" src="__THEME__/img/down_load_icon.png" width="13" height="16"></van-image>
 									<else />
 									<van-image @click="showYulan({$vo['exams_paper_id']})"  src="__THEME__/img/down_load_icon.png" width="13" height="16"></van-image>
 								</if>
@@ -147,7 +147,7 @@
 									<div class="tips_title">提示</div>
 									<div class="tips_body">套餐下架后用户便无法找到该商品进行购买，你确定要下架吗？</div>
 									<div class="tips_foot">
-										<div @click="onDownload('{$vo['exams_paper_title']}', {$vo['attach']})" class="tips_foot_L" >下载预览</div>
+										<div @click="onDownload('{$vo['exams_paper_title']}', '{$vo['attach']}')" class="tips_foot_L" >下载预览</div>
 										<div @click="onPay({$vo['exams_paper_id']})"  class="tips_foot_R">下载全部</div>
 									</div>
 								</div>