多选答案判断时用错用户值

ie-system/src/main/java/com/ruoyi/learn/domain/PaperVO.java

@@ -104,7 +104,7 @@ public class PaperVO {
                     if(CollectionUtils.isEmpty(answers)) {
                         return 4;
                     }
-                    List<String> stdAnswers = StringUtils.charStr2List(answer1); // 多选的 answer1 无逗号分隔
+                    List<String> stdAnswers = StringUtils.charStr2List(std.answer1); // 多选的 answer1 无逗号分隔
                     return stdAnswers.size() == answers.size() && CollectionUtils.intersection(stdAnswers, answers).size() == answers.size() ? 1 : 2;
                 } else {
                     if(CollectionUtils.isEmpty(answers)) {