统计分析模块更新，待测试，统计分析模块更新，就业3个模块更新。

StatCalc/dao/statcalc_dao.py

@@ -39,12 +39,23 @@ def get_class_count(g , db):
 from scores.model.score_model import Score
 
 def get_score_80(db):
-    q = ( db.query(Score)
-          .group_by(Score.score)
-          .having( min(Score.score) >= 80)
+    sq = ( db.query(Students.id)
+           .join(Score, Score.sid == Students.id)
+           .filer(Score.score < 80 )
+           .group_by(Students.id)
+           .having(func.count(Score.id) > 2 )
+           .sq()
+         )
+
+    q = ( db.query(Students.name,ClassInfo.name,Score.score )
+          .join(ClassInfo, ClassInfo.id == Students.class_id)
+          .join(Score, Score.sid == Students.id)
+          .filer(Students.id.in_(sq),Score.score < 80)
           .all()
          )
     return q
 
 
 
+
+