录像文件自检页面 录像丢失时长 字段判断错误 处理

src/views/iot/videoDiagnosis/index.vue

@@ -335,10 +335,12 @@ export default {
       this.handleQuery();
     },
     lostDurationText(duration) {
-      if (!duration || duration=='0') {
+      if (!duration) {
+        return "未知";
+      }
+      if (duration=='0') {
         return "未丢失";
       }
-
       let str = "";
       let hour = Math.floor(duration / 60);
       if (hour > 0) {