fix(配套设备库): 修改序列号

dev-matching/src/main/java/com/tykj/dev/device/matching/controller/MatchingDeviceController.java

@@ -656,7 +656,7 @@ public class MatchingDeviceController {
         String type = "02";
         String style = createSeqVo.getStyle();
         String modelTypeStyle ;
-        if (style == null){
+        if (style == null || "".equals(style)){
             modelTypeStyle= idString+type;
         }else {
             if (style.length()<2){