模型实验-bug-fix 添加日志

recommend-server-service/src/main/java/com/tzld/piaoquan/recommend/server/service/rank/strategy/RankStrategy4RankModel.java

@@ -91,7 +91,7 @@ public class RankStrategy4RankModel extends RankService {
         int diffpos = 0;
         int difftop = 0;
         for (int i=0; i<newRes.size(); ++i){
-            if (oldRes.get(i) != newRes.get(i)){
+            if (!oldRes.get(i).equals(newRes.get(i))){
                 ++diffpos;
             }
             if (!oldRes.contains(newRes.get(i))){