已关联视频的标签删除提示

src/views/training_manage/labelManage.vue

@@ -17,7 +17,7 @@
                 <el-table-column label="操作" align="center">
                     <template slot-scope="{row}">
                         <el-button type="text" @click="handleModifyLabel(row)">编辑</el-button>
-                        <el-button type="text" @click="deleteLabel(row)">删除</el-button>
+                        <el-button type="text" @click="deleteLabel(row)" style="color:red;">删除</el-button>
                     </template>
                 </el-table-column>
             </el-table>
@@ -111,6 +111,10 @@ export default {
             this.isModifyDialogShow = false
         },
         deleteLabel(label){
+            if(label.VideoTotal!==0){
+                this.$confirm('该标签已关联视频，删除失败','提示',{confirmButtonText:'知道了',showCancelButton:false,type:'error'})
+                return
+            }
             this.$confirm(
                 '删除后不可恢复，是否确认删除该标签？',
                 '提示',