diff --git a/src/main/java/com/sztzjy/resource_center/controller/CaseController.java b/src/main/java/com/sztzjy/resource_center/controller/CaseController.java
index e9f90d2..4a88969 100644
--- a/src/main/java/com/sztzjy/resource_center/controller/CaseController.java
+++ b/src/main/java/com/sztzjy/resource_center/controller/CaseController.java
@@ -201,13 +201,16 @@ public class CaseController {
     @PostMapping("deleteCase")
     public ResultEntity<HttpStatus> deleteCase(@RequestBody SysCaseQuestion sysCaseQuestion,
                                                @ApiParam("哪个用的掉的请求，传管理员/学校ID") @RequestParam String source) {
+        if (sysCaseQuestion.getOneId()==null&& sysCaseQuestion.getTwoId()==null&&sysCaseQuestion.getThreeId()==null){
+            sysCaseQuestion.setUnmountStatus(true);
+            caseQuestionMapper.updateByPrimaryKeySelective(sysCaseQuestion);
+            return new ResultEntity<>(HttpStatus.OK, "删除成功!");
+        }
         List<SysTopicAndCourse> sysTopicAndCourses = getSysTopicAndCourses(sysCaseQuestion.getCaseId(), sysCaseQuestion.getOneId());
         if (!sysTopicAndCourses.isEmpty()) {
             return new ResultEntity<>(HttpStatus.BAD_REQUEST, "无法删除！该案例题正在被使用!");
         } else {
             if ("管理员".equals(source) || source.equals(sysCaseQuestion.getSource())) {
-                topicAndCourseMapper.deleteByPrimaryKey(sysTopicAndCourses.get(0).getId());
-
                 sysCaseQuestion.setUnmountStatus(true);
                 caseQuestionMapper.updateByPrimaryKeySelective(sysCaseQuestion);
                 return new ResultEntity<>(HttpStatus.OK, "删除成功!");
diff --git a/src/main/java/com/sztzjy/resource_center/controller/api/CaseApi.java b/src/main/java/com/sztzjy/resource_center/controller/api/CaseApi.java
index 07d670e..804ca90 100644
--- a/src/main/java/com/sztzjy/resource_center/controller/api/CaseApi.java
+++ b/src/main/java/com/sztzjy/resource_center/controller/api/CaseApi.java
@@ -321,7 +321,12 @@ public class CaseApi {
         return caseQuestionStepMapper.selectCaseStepListBatchByIdListAndSort(threeId);
     }
 
-
+    @PostMapping("selectCaseStepListBatchByIdListAndSortss")
+    @ApiOperation("查询案例题步骤并排序")
+    @AnonymousAccess
+    public List<SysCaseQuestionStepWithBLOBs> selectCaseStepListBatchByIdListAndSortss(@RequestBody List<String> list) {
+        return caseQuestionStepMapper.selectCaseStepListBatchByIdListAndSortss(list);
+    }
     /**
      * 根据章节IdList查询案例题
      * 方法名：selectCaseByChapterIdList
diff --git a/src/main/java/com/sztzjy/resource_center/entity/SysCaseQuestionStepWithBLOBs.java b/src/main/java/com/sztzjy/resource_center/entity/SysCaseQuestionStepWithBLOBs.java
index c171843..942959b 100644
--- a/src/main/java/com/sztzjy/resource_center/entity/SysCaseQuestionStepWithBLOBs.java
+++ b/src/main/java/com/sztzjy/resource_center/entity/SysCaseQuestionStepWithBLOBs.java
@@ -1,8 +1,8 @@
 package com.sztzjy.resource_center.entity;
 
 import io.swagger.annotations.ApiModelProperty;
+
 /**
- *
  * @author xcj
  * sys_case_question_steps
  */
@@ -34,6 +34,16 @@ public class SysCaseQuestionStepWithBLOBs extends SysCaseQuestionStep {
     @ApiModelProperty("练习答案原始数据")
     private String practiceAnswerOriginal;
 
+    public String threeId;
+
+    public String getThreeId() {
+        return threeId;
+    }
+
+    public void setThreeId(String threeId) {
+        this.threeId = threeId;
+    }
+
     public String getTitle() {
         return title;
     }
diff --git a/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionStepMapper.java b/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionStepMapper.java
index 69b44c5..98717fd 100644
--- a/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionStepMapper.java
+++ b/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionStepMapper.java
@@ -4,10 +4,13 @@ import com.sztzjy.resource_center.entity.SysCaseQuestionStep;
 import com.sztzjy.resource_center.entity.SysCaseQuestionStepExample;
 import com.sztzjy.resource_center.entity.SysCaseQuestionStepWithBLOBs;
 import java.util.List;
+import java.util.Map;
 
 import com.sztzjy.resource_center.entity.dto.TrainingDto;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
+import org.geolatte.geom.M;
+
 @Mapper
 public interface SysCaseQuestionStepMapper {
     long countByExample(SysCaseQuestionStepExample example);
@@ -47,4 +50,5 @@ public interface SysCaseQuestionStepMapper {
     List<SysCaseQuestionStepWithBLOBs> getCaseStepByIds(@Param("ids") List<String> ids);
 
     List<SysCaseQuestionStepWithBLOBs> selectCaseStepListBatchByIdListAndSort(@Param("threeId") String threeId);
+    List<SysCaseQuestionStepWithBLOBs> selectCaseStepListBatchByIdListAndSortss(@Param("list") List<String> list);
 }
\ No newline at end of file
diff --git a/src/main/resources/mapper/SysCaseQuestionStepMapper.xml b/src/main/resources/mapper/SysCaseQuestionStepMapper.xml
index 71939cc..00f408a 100644
--- a/src/main/resources/mapper/SysCaseQuestionStepMapper.xml
+++ b/src/main/resources/mapper/SysCaseQuestionStepMapper.xml
@@ -18,6 +18,8 @@
         <result column="question_original" jdbcType="LONGVARCHAR" property="questionOriginal"/>
         <result column="answer_original" jdbcType="LONGVARCHAR" property="answerOriginal"/>
         <result column="practice_answer_original" jdbcType="LONGVARCHAR" property="practiceAnswerOriginal"/>
+        <result column="three_id" jdbcType="VARCHAR" property="threeId"/>
+
     </resultMap>
     <sql id="Example_Where_Clause">
         <where>
@@ -433,6 +435,7 @@
         GROUP BY sq.title, s3.three_name,sqs.case_id;
     </select>
 
+
     <select id="getCaseStepByIds" resultMap="ResultMapWithBLOBs">
         SELECT title,case_step_id,case_id,sort,score
         FROM sys_case_question_steps
@@ -442,6 +445,21 @@
         </foreach>
     </select>
 
+    <select id="selectCaseStepListBatchByIdListAndSortss" resultMap="ResultMapWithBLOBs">
+        SELECT st.three_id,sc.*
+        from sys_case_question_steps sc
+                 left join sys_case_questions s
+                           on sc.case_id = s.case_id
+                 left join sys_topic_and_course st
+                           on st.topic_id = s.case_id
+        where st.three_id in
+        <foreach item="item" collection="list" open="(" separator="," close=")">
+            #{item}
+        </foreach>
+        order by s.create_time ,sc.sort
+    </select>
+
+
     <select id="selectCaseStepListBatchByIdListAndSort" resultMap="ResultMapWithBLOBs">
         SELECT sc.*
         from sys_case_question_steps sc
@@ -452,4 +470,5 @@
         where st.three_id = #{threeId}
         order by s.create_time ,sc.sort
     </select>
+
 </mapper>
\ No newline at end of file