From c0f16750cb9097a8db7b68f8c1794c2aec28ca15 Mon Sep 17 00:00:00 2001
From: “djh” <“3298565835@qq.com”>
Date: 星期四, 24 七月 2025 15:01:10 +0800
Subject: [PATCH] 新增

---
 multi-system/src/main/resources/mapper/system/ExStudentAnswerMapper.xml |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/multi-system/src/main/resources/mapper/system/ExStudentAnswerMapper.xml b/multi-system/src/main/resources/mapper/system/ExStudentAnswerMapper.xml
index c283c0a..2363cdd 100644
--- a/multi-system/src/main/resources/mapper/system/ExStudentAnswerMapper.xml
+++ b/multi-system/src/main/resources/mapper/system/ExStudentAnswerMapper.xml
@@ -1,6 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="com.gkhy.exam.system.mapper.ExStudentAnswerMapper">
+    <update id="updateState">
+        update ex_student_answer set answer = null where  paper_id = #{paperId} AND student_id = #{studentId}
+    </update>
+    <delete id="deletedByPaperStudentId">
+        DELETE
+        FROM
+            ex_student_answer
+        WHERE
+            paper_id = #{paperId}
+          AND student_id = #{studentId}
+    </delete>
 
     <select id="countByPaperId" resultType="java.lang.Integer">
         select count(1) from ex_student_answer where paper_id=#{paperId} and student_id=#{studentId}

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