课程信息：课时详情的数据处理

java

2023-06-30 d0fe90adfae626158a431b038395caa908e48e8c

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package com.dsh.course.mapper;
 
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.dsh.course.entity.City;
import org.apache.ibatis.annotations.Mapper;
 
@Mapper
public interface CityMapper extends BaseMapper<City> {
}