页面修改

src/components/common/select-tree.vue

 <template>
   <div style="width:300px" :id="id">
-    <q-select filled v-model="resultObj" :options="selectList" clearable @clear="clearData()" :label="tipText"
-      :multiple="multiple" emit-value map-options>
-      <template v-slot:option="scope">
-        <q-item v-if="scope.index==0">
-          <q-item-section class="text-grey">
-            <q-tree :nodes="treeData" :node-key="nodeKey" :label-key="labelKey" :children-key="childrenKey"
-              tick-strategy="strict" :default-expand-all="defaultExpandAll" no-connectors
-              :ticked.sync="chooseTreeNodeArray">
-            </q-tree>
-          </q-item-section>
-        </q-item>
-      </template>
-    </q-select>
+    <template v-if="multiple">
+      <q-select filled v-model="resultObj" :options="selectList" clearable @clear="clearData()" :label="tipText"
+        :multiple="multiple" emit-value map-options>
+        <template v-slot:option="scope">
+          <q-item v-if="scope.index==0">
+            <q-item-section class="text-grey">
+              <q-tree :nodes="treeData" :node-key="nodeKey" :label-key="labelKey" :children-key="childrenKey"
+                tick-strategy="strict" :default-expand-all="defaultExpandAll" no-connectors
+                :ticked.sync="chooseTreeNodeArray">
+              </q-tree>
+            </q-item-section>
+          </q-item>
+        </template>
+      </q-select>
+    </template>
+    <template v-else>
+      <q-select filled v-model="resultObj[0]" :options="selectList" clearable @clear="clearData()" :label="tipText"
+        :multiple="multiple" emit-value map-options>
+        <template v-slot:option="scope">
+          <q-item v-if="scope.index==0">
+            <q-item-section class="text-grey">
+              <q-tree :nodes="treeData" :node-key="nodeKey" :label-key="labelKey" :children-key="childrenKey"
+                tick-strategy="strict" :default-expand-all="defaultExpandAll" no-connectors
+                :ticked.sync="chooseTreeNodeArray">
+              </q-tree>
+            </q-item-section>
+          </q-item>
+        </template>
+      </q-select>
+    </template>
+
   </div>
 </template>
 <script>
@@ -88,9 +106,9 @@
             this.defaultArray.forEach(item => {
               if (item != '') {
                 if (this.multiple) {
-                  this.chooseTreeNodeArray.push(Number(item))
+                  this.chooseTreeNodeArray.push(item)
                 } else {
-                  this.chooseTreeNodeArray = [Number(item)];
+                  this.chooseTreeNodeArray = [item];
                 }
               }
             })
@@ -105,7 +123,7 @@
           if (this.multiple) {
             resultStr = this.resultObj.toString();
           } else {
-            resultStr = this.resultObj[0]
+            resultStr = this.resultObj[0];
           }
         }
         this.$emit('getChild', resultStr);
@@ -153,8 +171,6 @@
             label: ""
           }];
         }
-        console.log("this.selectList ", this.selectList);
-        console.log("resultObj", this.resultObj);
       },
       //获取树中所有节点
       findTreeNode(tree) {

src/components/course/course-form.vue

@@ -82,12 +82,11 @@
         this.objOption.CourseIntro = obj;
       },
       getChild(obj) {
-        // if (obj == "") {
-        //   this.objOption.CateId = 0;
-        // } else
-        // {
-        //   this.objOption.CateId = obj;
-        // }
+        if (obj == "") {
+          this.objOption.CateId = 0;
+        } else {
+          this.objOption.CateId = obj;
+        }
       },
       uploadFile(files) {
         UploadSelfFile('course', files[0], res => {