完成开始上课的todo：查询课包信息

lisy

2023-07-20 8b031a2a2965726ab1d3e1e2f448302530e1a531

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<?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.dsh.course.mapper.CancelledClassesMapper">
 
</mapper>