修改

IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingImageTaskService.cs

@@ -412,7 +412,7 @@ namespace IRaCIS.Application.Services
 
             qusetionList.ForEach(x =>
             {
-                x.Answer = answers.Where(y => y.ReadingQuestionTrialId == x.Id).Select(x => x.Answer).FirstOrDefault() ?? string.Empty;
+                x.Answer = answers.Where(y => y.ReadingQuestionTrialId == x.Id).Select(x => x.Answer).FirstOrDefault() ?? x.DefaultValue;
             });
 
             #endregion

IRaCIS.Core.Application/Service/Reading/ReadingImageTask/ReadingTaskQuestionService.cs

@@ -164,10 +164,16 @@ namespace IRaCIS.Application.Services
                             PageName = leftpage.PageName,
                             PageShowOrder = leftpage.ShowOrder,
                             IsPublicPage = leftpage.IsPublicPage,
+                            DefaultValue = data.DefaultValue,
                         };
 
             var qusetionList = await query.Where(x => x.ShowQuestion != ShowQuestion.Hide).OrderBy(x => x.ShowOrder).ToListAsync();
 
+            qusetionList.ForEach(x =>
+            {
+                x.Answer = x.Answer.IsNullOrEmpty() ? x.DefaultValue : x.Answer;
+            });
+
             return qusetionList;
         }