页面修改

src/components/common/tree.vue

 <template>
   <q-card style="width: 360px;">
     <q-input ref="selectTree" standout="bg-primary text-white" v-model="showMsg" :label="tipText"
-      @click.native="isShowSelect = !isShowSelect"  />
+      @click.native="isShowSelect = !isShowSelect" />
     <q-tree v-if="isShowSelect"
       style="width:100%;height:250px;overflow-y: scroll;position:absolute;z-index:99999;background:#fff;border:1px solid rgba(0, 0, 0, 0.12);"
       :nodes="treeData" :node-key="nodeKey" :label-key="labelKey" :children-key="childrenKey" tick-strategy="strict"
@@ -128,6 +128,7 @@
             this.showMsg = tempStr.substring(1, tempStr.length);
           }
         }
+        that.$emit('getChild', this.resultObj);
       },
       //获取所有节点
       findTreeNode(tree) {

src/pages/course/course.vue

@@ -9,7 +9,7 @@
         <div class="col-3">
           <select-tree v-if="TreeCategoryList&&TreeCategoryList.length>0" :treeData='TreeCategoryList'
             :id.sync="returnString" nodeKey="CateId" :multiple="true" labelKey="CateName" childrenKey="ChildList"
-            tipText="课程分类"></select-tree>
+            tipText="课程分类" @getChild="getChild"></select-tree>
         </div>
         <div class="col-3">
           <q-select @input="resetSearch" standout="bg-primary text-white" v-model="msg.Status" :options="ShowOpts"
@@ -168,6 +168,9 @@
       this.getcourselist();
     },
     methods: {
+      getChild(obj) {
+        console.log("obj", obj);
+      },
       getCategorytree() {
         this.TreeCategoryList = [];
         var qMsg = {}