fix bug

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

@@ -119,9 +119,9 @@
 									</if>
 									<else />
 									<if condition="$vo['price'] eq 0 or $vo['is_buy'] eq 1">
-										<div @click="onDownload({$vo['exams_paper_id']})" class="home_button_green layout_center">下载试题</div>
+										<div @click="onDownload('{$vo['exams_paper_title']}', {$vo['exams_paper_id']})" class="home_button_green layout_center">下载试题</div>
 										<else />
-										<div @click="onDownload({$vo['exams_paper_id']})" class="home_button_orange layout_center">下载预览</div>
+										<div @click="showYulan({$vo['exams_paper_id']})" class="home_button_orange layout_center">下载预览</div>
 									</if>
 								</if>
 
@@ -239,11 +239,26 @@
 			close_yulan: function () {
 				this.exams_paper_id = 0;
 			},
-			onDownload: function (isBuy, price, path) {
-				// if ( path ) {
-				// 	window.location.href = path;
-				// }
-				this.exams_paper_id = isBuy;
+			onDownload: function (title, path) {
+				if ( path ) {
+					var link = document.createElement('a');
+					// 设置下载的文件名
+					link.download = title;
+					link.style.display = 'none';
+					//设置下载路径
+					link.href = path;
+					//触发点击
+					document.body.appendChild(link);
+					link.click();
+					//移除节点
+					document.body.removeChild(link);
+					this.close_yulan();
+				} else {
+					alert('当前课程无文件下载');
+				}
+			},
+			showYulan: function (id) {
+				this.exams_paper_id = id;
 			},
 			onPay: function(id) {
 				if (MID <= 0) {