修改

src/views/tranManagement/tranManagementFireFeedback.vue

@@ -123,7 +123,7 @@
             </ws-form-item>
             <!--预览-->
             <div>
-              <el-button class="bg-bottom" type="primary" size="small" @click="preview(item)"  v-if="item.imgCount != null ">预览</el-button>
+              <el-button class="bg-bottom" type="primary" size="small" @click="preview(item)"  v-if="item.imgCount > 0 ">预览</el-button>
             </div>
             <!--箱号-->
             <!--装车日期-->