fix Question#ans err

src/main/java/edu/math/diagnosis/controller/CommitController.java

@@ -83,7 +83,7 @@ public class CommitController {
     }
 
     private boolean judgeQuestion(Question question) {
-        String ans = question.getAns();
+        String ans = question.getAnswer();
         if (StringUtils.isEmpty(ans)) {
             return false;
         }
@@ -136,7 +136,7 @@ public class CommitController {
             double sectionTotalScore = sectionReport.getTotalScore();
             sectionReport.setTotalScore(sectionTotalScore + score);
             QuestionCommit questionCommit = new QuestionCommit();
-            questionCommit.setAns(question.getAns());
+            questionCommit.setAns(question.getAnswer());
             questionCommit.setQid(question.getId());
             questionCommit.setUsetime(question.getUsetime());
             questionCommit.setCorrect(false);