fix 添加积分，扣除积分

src/main/java/com/tailbet/mapper/UserMapper.java

@@ -3,10 +3,24 @@ package com.tailbet.mapper;
 import com.tailbet.model.entity.User;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Update;
 
 /**
  * 用户Mapper
  */
 @Mapper
 public interface UserMapper extends BaseMapper<User> {
+
+    /**
+     * 原子增加积分
+     */
+    @Update("UPDATE user SET points = points + #{amount} WHERE id = #{id}")
+    int addPoints(@Param("id") Long id, @Param("amount") Long amount);
+
+    /**
+     * 原子扣除积分（积分不足时返回0）
+     */
+    @Update("UPDATE user SET points = points - #{amount} WHERE id = #{id} AND points >= #{amount}")
+    int subPoints(@Param("id") Long id, @Param("amount") Long amount);
 }