diff --git a/web-adapter/src/main/java/com/zcloud/edu/web/resource/CurriculumChapterController.java b/web-adapter/src/main/java/com/zcloud/edu/web/resource/CurriculumChapterController.java
index de48ad4..31545df 100644
--- a/web-adapter/src/main/java/com/zcloud/edu/web/resource/CurriculumChapterController.java
+++ b/web-adapter/src/main/java/com/zcloud/edu/web/resource/CurriculumChapterController.java
@@ -46,7 +46,7 @@ public class CurriculumChapterController {
         return curriculumChapterService.listPage(qry);
     }
 
-    @ApiOperation("所有数据")
+ /*   @ApiOperation("所有数据")
     @PostMapping("/listAll")
     public MultiResponse<CurriculumChapterCO> listAll() {
         return MultiResponse.of(new ArrayList<CurriculumChapterCO>());
@@ -56,7 +56,7 @@ public class CurriculumChapterController {
     @PostMapping("/getInfoById")
     public SingleResponse<CurriculumChapterCO> getInfoById(@RequestParam("id") Long id) {
         return SingleResponse.of(new CurriculumChapterCO());
-    }
+    }*/
 
     @ApiOperation("删除")
     @PostMapping("/remove/")
diff --git a/web-infrastructure/src/main/resources/mapper/study/ClassMapper.xml b/web-infrastructure/src/main/resources/mapper/study/ClassMapper.xml
index 1e0f331..0f1529b 100644
--- a/web-infrastructure/src/main/resources/mapper/study/ClassMapper.xml
+++ b/web-infrastructure/src/main/resources/mapper/study/ClassMapper.xml
@@ -97,7 +97,7 @@
     <select id="listStatistics" resultType="com.zcloud.edu.persistence.dataobject.study.ClassDO">
         SELECT
             c.class_id,
-            count(c.class_id) totalCount
+            count(s.student_id) totalCount
         FROM
             class c
             left join student s on s.class_id = c.class_id and s.delete_enum = 'FALSE'