diff --git a/ruoyi-admin/src/main/resources/mapper/system/RewardTasksMapper.xml b/ruoyi-admin/src/main/resources/mapper/system/RewardTasksMapper.xml
index bae8185..4019473 100644
--- a/ruoyi-admin/src/main/resources/mapper/system/RewardTasksMapper.xml
+++ b/ruoyi-admin/src/main/resources/mapper/system/RewardTasksMapper.xml
@@ -1,45 +1,47 @@
 <?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">
+        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="com.ruoyi.reward.mapper.RewardTasksMapper">
-    
+
     <resultMap type="RewardTasks" id="RewardTasksResult">
-        <result property="rewardId"    column="reward_id"    />
-        <result property="title"    column="title"    />
-        <result property="description"    column="description"    />
-        <result property="amount"    column="amount"    />
-        <result property="status"    column="status"    />
-        <result property="publisherId"    column="publisher_id"    />
-        <result property="accepterId"    column="accepter_id"    />
-        <result property="createTime"    column="create_time"    />
-        <result property="updateTime"    column="update_time"    />
-        <result property="remark"    column="remark"    />
+        <result property="rewardId" column="reward_id" />
+        <result property="title" column="title" />
+        <result property="description" column="description" />
+        <result property="amount" column="amount" />
+        <result property="status" column="status" />
+        <result property="publisherId" column="publisher_id" />
+        <result property="accepterId" column="accepter_id" />
+        <result property="createTime" column="create_time" />
+        <result property="updateTime" column="update_time" />
+        <result property="remark" column="remark" />
     </resultMap>
 
     <sql id="selectRewardTasksVo">
-        select reward_id, title, description, amount, status, publisher_id, accepter_id, create_time, update_time, remark from reward_tasks
+        SELECT reward_id, title, description, amount, status, publisher_id, accepter_id, create_time, update_time, remark
+        FROM reward_tasks
+        ORDER BY create_time DESC
     </sql>
 
     <select id="selectRewardTasksList" parameterType="RewardTasks" resultMap="RewardTasksResult">
         <include refid="selectRewardTasksVo"/>
-        <where>  
-            <if test="title != null  and title != ''"> and title = #{title}</if>
-            <if test="description != null  and description != ''"> and description = #{description}</if>
-            <if test="amount != null "> and amount = #{amount}</if>
-            <if test="status != null  and status != ''"> and status = #{status}</if>
-            <if test="publisherId != null "> and publisher_id = #{publisherId}</if>
-            <if test="accepterId != null "> and accepter_id = #{accepterId}</if>
+        <where>
+            <if test="title != null and title != ''"> AND title = #{title}</if>
+            <if test="description != null and description != ''"> AND description = #{description}</if>
+            <if test="amount != null"> AND amount = #{amount}</if>
+            <if test="status != null and status != ''"> AND status = #{status}</if>
+            <if test="publisherId != null"> AND publisher_id = #{publisherId}</if>
+            <if test="accepterId != null"> AND accepter_id = #{accepterId}</if>
         </where>
     </select>
-    
+
     <select id="selectRewardTasksByRewardId" parameterType="Long" resultMap="RewardTasksResult">
         <include refid="selectRewardTasksVo"/>
-        where reward_id = #{rewardId}
+        WHERE reward_id = #{rewardId}
     </select>
 
     <insert id="insertRewardTasks" parameterType="RewardTasks" useGeneratedKeys="true" keyProperty="rewardId">
-        insert into reward_tasks
+        INSERT INTO reward_tasks
         <trim prefix="(" suffix=")" suffixOverrides=",">
             <if test="title != null and title != ''">title,</if>
             <if test="description != null and description != ''">description,</if>
@@ -50,8 +52,8 @@
             <if test="createTime != null">create_time,</if>
             <if test="updateTime != null">update_time,</if>
             <if test="remark != null">remark,</if>
-         </trim>
-        <trim prefix="values (" suffix=")" suffixOverrides=",">
+        </trim>
+        <trim prefix="VALUES (" suffix=")" suffixOverrides=",">
             <if test="title != null and title != ''">#{title},</if>
             <if test="description != null and description != ''">#{description},</if>
             <if test="amount != null">#{amount},</if>
@@ -61,11 +63,11 @@
             <if test="createTime != null">#{createTime},</if>
             <if test="updateTime != null">#{updateTime},</if>
             <if test="remark != null">#{remark},</if>
-         </trim>
+        </trim>
     </insert>
 
     <update id="updateRewardTasks" parameterType="RewardTasks">
-        update reward_tasks
+        UPDATE reward_tasks
         <trim prefix="SET" suffixOverrides=",">
             <if test="title != null and title != ''">title = #{title},</if>
             <if test="description != null and description != ''">description = #{description},</if>
@@ -77,17 +79,26 @@
             <if test="updateTime != null">update_time = #{updateTime},</if>
             <if test="remark != null">remark = #{remark},</if>
         </trim>
-        where reward_id = #{rewardId}
+        WHERE reward_id = #{rewardId}
     </update>
 
     <delete id="deleteRewardTasksByRewardId" parameterType="Long">
-        delete from reward_tasks where reward_id = #{rewardId}
+        DELETE FROM reward_tasks WHERE reward_id = #{rewardId}
     </delete>
 
-    <delete id="deleteRewardTasksByRewardIds" parameterType="String">
-        delete from reward_tasks where reward_id in 
+    <delete id="deleteRewardTasksByRewardIds" parameterType="Long">
+        DELETE FROM reward_tasks WHERE reward_id IN
         <foreach item="rewardId" collection="array" open="(" separator="," close=")">
             #{rewardId}
         </foreach>
     </delete>
+
+    <select id="selectRewardBtByRewardId" parameterType="Integer" resultType="Integer">
+        SELECT reward_bt FROM reward_bt WHERE reward_id = #{rewardId}
+    </select>
+
+    <insert id="insertRewardBt" parameterType="map">
+        INSERT INTO reward_bt (reward_id, reward_bt)
+        VALUES (#{rewardId}, #{rewardBt})
+    </insert>
 </mapper>
\ No newline at end of file