fix

examcloud-core-questions-service/src/main/java/cn/com/qmth/examcloud/core/questions/service/impl/GenPaperService.java

@@ -24,6 +24,7 @@ import cn.com.qmth.examcloud.core.questions.base.CommonUtils;
 import cn.com.qmth.examcloud.core.questions.base.Model;
 import cn.com.qmth.examcloud.core.questions.base.enums.PaperStructType;
 import cn.com.qmth.examcloud.core.questions.base.enums.PaperType;
+import cn.com.qmth.examcloud.core.questions.base.enums.QuestionDifficulty;
 import cn.com.qmth.examcloud.core.questions.base.exception.QuesNotEnoughException;
 import cn.com.qmth.examcloud.core.questions.base.question.enums.QuesStructType;
 import cn.com.qmth.examcloud.core.questions.dao.PaperDetailRepo;
@@ -223,7 +224,7 @@ public class GenPaperService {
         List<String> quesNames = uc.getUnitStruct().getQuesNames();
         if (quesNames != null && quesNames.size() > 0) {
             if (quesNames.contains(question.getQuesName()) && !uc.finish() && (uc.getUnitStruct().getQuestionType() == question.getQuestionType())) {
-                if("all".equals(uc.getUnitStruct().getDifficulty())) {//难度不限
+                if(QuestionDifficulty.ANY.getName().equals(uc.getUnitStruct().getDifficulty())) {//难度不限
                     if (question.getPublicity().equals(uc.getUnitStruct().getPublicity())) {
                         return true;
                     }