计算设备故障率：增加单位

huimv-farm-v2/huimv-pigfarm-local-device/src/main/java/com/huimv/huimvpigfarmlocaldevice/service/impl/DeviceImpl.java

@@ -199,9 +199,9 @@ public class DeviceImpl implements IDevice {
         }
         String rate = mathUtil.countRate(num, total, bit);
         JSONObject outJo = new JSONObject();
-        outJo.put("total",total);
-        outJo.put("num",num);
-        outJo.put("rate",rate+"%");
+        outJo.put("total",total+" 个");
+        outJo.put("num",num+" 个");
+        outJo.put("rate",rate+" %");
         return new Result(ResultCode.SUCCESS,outJo);
     }