!20 fix: 修复规则引擎初始化错误bug

Merge pull request !20 from Sage/dev-V0.4.5

iot-module/iot-rule-engine/src/main/java/cc/iotkit/ruleengine/rule/RuleManager.java

@@ -78,7 +78,7 @@ public class RuleManager {
         int idx = 1;
         while (true) {
             PageRequest<RuleInfo> pageRequest = new PageRequest<>();
-            pageRequest.setPageNum(idx += 1);
+            pageRequest.setPageNum(idx);
             pageRequest.setPageSize(100);
             Paging<RuleInfo> all = ruleInfoData.findAll(pageRequest);
             List<RuleInfo> rules = all.getRows();