image改了一个报错

DAPlatform-front/src/components/imageAnnotation/imageAnnotiation.vue

@@ -60,24 +60,19 @@
             <div class="img-list-title" style="height: 30px;line-height: 30px;font-size: 14px">标注列表</div>
             <div class="img-title-list-box">
               <div id="img-title-list" style="user-select:none">
-                <div v-for="(item, index) in data[pictureId].children"
-                     :key="item.id"
-                     class="listLeft"
-                     style="text-align: left"
-                     @dblclick="labelInfo(index)"
-                     @mouseenter="labelEnter(index)"
-                     @mouseleave="labelLeave()">
+                <div v-if="data.length != 0">
+                  <div v-for="(item, index) in data[pictureId].children"
+                                          :key="item.id"
+                                          class="listLeft"
+                                          style="text-align: left"
+                                          @dblclick="labelInfo(index)"
+                                          @mouseenter="labelEnter(index)"
+                                          @mouseleave="labelLeave()">
                   {{index+1}}. &nbsp; {{item.labelName}}
-
-                  <!-- <button style="float: right"
-                          v-show = "canvasAllCheck[index] == 2"
-                          @click="isRightFn2(index)">取消正确</button>
-
-                  <button style="float: right"
-                          v-show = "canvasAllCheck[index] == 0"
-                          @click="isRightFn(index)">标记正确</button> -->
+                  </div>
                 </div>
 
+
                 <!-- <div style="position: absolute;bottom: 0;">
                   <button @click="computeFn()">开始计算</button>
                   计算得分 = {{this.computeScore}}
@@ -202,6 +197,7 @@ export default {
     }
   },
   async mounted () {
+
     let routeParams = this.$route.params
     // console.log("routeParams")
     // console.log(routeParams)
@@ -834,6 +830,9 @@ export default {
 
     // 添加标签前弹窗输入标签名字
     addLabel () {
+      let idTmp = this.pictureId
+      console.log('???')
+      console.log(this.data[idTmp])
       var labelName
       this.$prompt('请输入标注名称', '提示', {
         confirmButtonText: '确定',