feature: hint按照逗号拆分

server/src/main/java/com/pica/cloud/online/exam/analysis/server/service/impl/AntiSpamServiceImpl.java

@@ -224,7 +224,10 @@ public class AntiSpamServiceImpl implements AntiSpamService {
                         msg = getMessageByLabel(label);
                     }
                     for (JsonElement eleHint : hintArray) {
-                        hint.add(eleHint.getAsString());
+                        String[] hints = eleHint.getAsString().split(",");
+                        for (String ht : hints) {
+                            hint.add(ht.trim());
+                        }
                     }
                 }