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				@@ -1549,14 +1549,14 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup> 
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				             //获取助教老师 
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				             Map<Integer, String> subTeachers = JSONObject.parseObject(JSONObject.toJSONString(MapUtil.convertMybatisMap(classGroupDao.countStudentNum(join, "TEACHING"))), HashMap.class); 
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				             //获取在读人数 
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				-            Map<String, Integer> studyNums = JSONObject.parseObject(JSONObject.toJSONString(MapUtil.convertIntegerMap(classGroupDao.countStudyNum(join))), HashMap.class); 
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				+            Map<Integer, Integer> studyNums = JSONObject.parseObject(JSONObject.toJSONString(MapUtil.convertIntegerMap(classGroupDao.countStudyNum(join))), HashMap.class); 
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				             //获取退班人数 
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				-            Map<String, Integer> quitNums = JSONObject.parseObject(JSONObject.toJSONString(MapUtil.convertIntegerMap(classGroupDao.countQuitNum(join))), HashMap.class); 
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				+            Map<Integer, Integer> quitNums = JSONObject.parseObject(JSONObject.toJSONString(MapUtil.convertIntegerMap(classGroupDao.countQuitNum(join))), HashMap.class); 
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				             dataList.forEach(e -> { 
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				                 e.setMasterTeacher(masterTeachers.get(e.getClassGroupId())); 
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				                 e.setSubTeacher(subTeachers.get(e.getClassGroupId())); 
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				-                e.setStudyNum(studyNums.get(e.getClassGroupId().toString())); 
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				-                e.setQuitNum(quitNums.get(e.getClassGroupId().toString())); 
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				+                e.setStudyNum(studyNums.get(e.getClassGroupId())); 
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				+                e.setQuitNum(quitNums.get(e.getClassGroupId())); 
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				             }); 
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				         } 
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				         if (count == 0) { 
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