修改

src/components/Course/myNote.vue

@@ -1,5 +1,5 @@
 <template>
-    <div class="my-note">
+    <div class="my-note" @change="handleClick">
         <div class="mynote">
             <div class="mynote-tab">
                 <div @click="notetabType(1)" :class="notetab == 1 ? 'noteactive' : ' ' "> <span>新增笔记</span> </div>
@@ -150,6 +150,12 @@ export default {
 
     },
     watch: {
+        selected:{
+      handler(val,old){
+        this.$emit('change',this.selected)
+      },
+      deep:true
+    },
         data(val){
            if(val.id) {
             console.log(val,'val');
@@ -163,6 +169,9 @@ export default {
         // }
     },
     methods: {
+        handleClick(){
+        this.$emit('change',this.selected)
+    },
         onPlayVideo(conId,time) {
             //这里应该加上内容的id
             this.$emit('onPlayVideo',conId,time);