diff --git a/src/views/study/coursenew.vue b/src/views/study/coursenew.vue
index 11d0cc7f..88d79caf 100644
--- a/src/views/study/coursenew.vue
+++ b/src/views/study/coursenew.vue
@@ -173,6 +173,7 @@
                   <div  v-for="(item, index) in catalogTree" :key="index" :name="index">
                     <el-menu
                       ref="menu"
+                      :default-openeds="defaultOpeneds"
                       :default-active="activeId"
                       :unique-opened="true"
                       class="el-menu-vertical-demo"
@@ -185,8 +186,8 @@
                             <div style="margin-right: 23px;font-weight: 700;font-size: 16px;">({{ item.children.filter(item=>item.status == 9).length }}/{{ item.children.length }})</div>
                           </div>
                         </template>
-                        <el-menu-item-group>
-                          <div class="units-info" :class="{'units-active':contentData.id == ele.id}" v-for="(ele, i) in item.children" :key="i" @click="showRes(ele,i,index)">
+                        <el-menu-item-group v-for="(ele, i) in item.children" :key="i">
+                          <div class="units-info" :class="{'units-active':contentData.id == ele.id}" @click="showRes(ele,i,index,item)">
                             <el-menu-item :index="ele.id" style="padding: 0;padding-left: 10px;">
                               <div style="display: flex;justify-content: space-between;">
                                 <div style="font-size: 16px;" :title="ele.contentName">{{i+1}}. {{ ele.contentName.slice(0, 15)+(ele.contentName.length > 15 ? '...' : '') }}</div>
@@ -354,8 +355,9 @@
     },
     data() {
       return {
-        KeyIndex: '',
         activeId: '',
+        isFalse: false,
+        defaultOpeneds: [],
         sendEventProgress: 0,
         trueFalse: true,
         audiences:'',
@@ -491,12 +493,15 @@
       this.stopStudyTime();
     },
     methods: {
-      handleOpen(key, keyPath) {
-        console.log(key, keyPath,'handleOpen');
-        this.KeyIndex = key;
+      handleOpen(key,path){
+        // console.log(key,path,'handleOpen')
+        if(this.isFalse){
+          this.defaultOpeneds = [key]
+        }
+        this.isFalse = false
       },
-      handleClose(key, keyPath) {
-        console.log(key, keyPath,'handleClose');
+      handleClose(key,path){
+        // console.log(key,path,'handleClose')
       },
       toUserHome(tea){
         this.$router.push({path:this.$xpage.getHomePath(tea.teacherId)})
@@ -636,7 +641,7 @@
         window.open(url, '_blank');
       },
       //替换播放区域
-      changePlayRes(r){
+      changePlayRes(r,item){
 
         if(this.appendStudyOtherHandle!=null){
           window.clearTimeout(this.appendStudyOtherHandle);
@@ -648,6 +653,10 @@
         this.resType = r.contentType;
         this.contentData = r;
         this.activeId = this.contentData.id
+        if(item){
+          this.isFalse = true
+          this.handleOpen(item.section.id,[item.section.id])
+        }
         this.contentData.name = this.courseInfo.name;
         this.saveStudyDuration();
 
@@ -782,7 +791,7 @@
             //console.log(h,$this.controlHeight,'$this.controlHeight');
         })
       },
-      showRes(r, i, index) { //i:子节下标，index:章下标
+      showRes(r, i, index,item) { //i:子节下标，index:章下标
         // 无权限查看不能点击
         if(!this.isCrowd){
           return
@@ -830,7 +839,7 @@
             }
           }
         }
-        this.changePlayRes(r);
+        this.changePlayRes(r,item);
       },
       loadScorePraiseAndTrample() {
         //加载是否请过分