diff --git a/src/main/java/com/sztzjy/fund_investment/mapper/PerformanceScoreMapper.java b/src/main/java/com/sztzjy/fund_investment/mapper/PerformanceScoreMapper.java
index 76a612c..96de062 100644
--- a/src/main/java/com/sztzjy/fund_investment/mapper/PerformanceScoreMapper.java
+++ b/src/main/java/com/sztzjy/fund_investment/mapper/PerformanceScoreMapper.java
@@ -6,6 +6,8 @@ import java.util.List;
 
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
+
 @Mapper
 public interface PerformanceScoreMapper {
     long countByExample(PerformanceScoreExample example);
@@ -29,4 +31,7 @@ public interface PerformanceScoreMapper {
     int updateByPrimaryKeySelective(PerformanceScore record);
 
     int updateByPrimaryKey(PerformanceScore record);
+
+    @Select("select class_id from performance_score group By class_id")
+    List<String> selectClassId();
 }
\ No newline at end of file
diff --git a/src/main/java/com/sztzjy/fund_investment/task/Task.java b/src/main/java/com/sztzjy/fund_investment/task/Task.java
index f81c434..ebbedb5 100644
--- a/src/main/java/com/sztzjy/fund_investment/task/Task.java
+++ b/src/main/java/com/sztzjy/fund_investment/task/Task.java
@@ -38,14 +38,7 @@ public class Task {
         // 查到单个班级下所有的已经在投资报告页面提交过的学生的总成绩
         // 算平均值，存表
         //查出所有数据
-        PerformanceScoreExample performanceScoreExample = new PerformanceScoreExample();
-        List<PerformanceScore> performanceScores = performanceScoreMapper.selectByExample(performanceScoreExample);
-        List<String> classIdList = new ArrayList<>();
-        for (PerformanceScore performanceScore : performanceScores) {
-            //查询classID相同的所有数据
-            String classId = performanceScore.getClassId();
-            classIdList.add(classId);
-        }
+        List<String> classIdList =  performanceScoreMapper.selectClassId();
         for (String classId : classIdList) {
             BigDecimal avgScore = BigDecimal.ZERO;
             BigDecimal count = BigDecimal.ZERO;
@@ -70,6 +63,7 @@ public class Task {
                 schoolId = score.getSchoolId();
                 //没提交报告的 算0分跳过
                 if (score.getInvestmentReportScore() == null || score.getInvestmentReportScore().equals(BigDecimal.ZERO)) {
+                    classMinScore = BigDecimal.ZERO;
                     continue;
                 }
 
@@ -102,7 +96,7 @@ public class Task {
             Date date = Date.from(currentDate.atStartOfDay(ZoneId.systemDefault()).toInstant());
             teaClassScore.setSchoolId(schoolId);
             teaClassScore.setStartTime(date);
-            System.out.println("定时任务执行的时间为=========》》：date");
+            System.out.println(new Date());
             teaClassScore.setId(IdUtil.simpleUUID());
             teaClassScore.setClassMaxScore(classMaxScore);
             teaClassScore.setClassMinScore(classMinScore);
@@ -125,5 +119,6 @@ public class Task {
             teaClassScoreMapper.insert(teaClassScore);
         }
     }
+
 }