切换曲库bug修复

MusicGradeExam/MusicGradeExam/UI/Exam/Controller/WaitExamViewController.m

@@ -266,6 +266,10 @@
     [self.view addSubview:_bottomView];
 }
 
+static void extracted(WaitExamViewController *object) {
+    [object requestDataWithHub:NO];
+}
+
 - (void)opreationAction:(JOINROOMACTION)action source:(TicketDetailModel *)source {
     switch (action) {
         case JOINROOMACTION_SIGN:  // 签到
@@ -297,7 +301,7 @@
                     }
                     else {
                         [self MBPShow:MESSAGEKEY];
-                        [self requestDataWithHub:NO];
+                        extracted(self);
                     }
                 } faliure:^(NSError * _Nonnull error) {
                     

MusicGradeExam/MusicGradeExam/UI/ExamLibrary/Controller/ExamLibraryController.m

@@ -173,6 +173,7 @@
     
     self.subjectId = [NSString stringWithFormat:@"%.0f", subjectModel.internalBaseClassIdentifier];
     [self.secondSegment setSelectedSegmentIndex:0 animated:YES];
+    self.levelString = @"1";
     [self resetParamenter];
     [self requestData];
 }