根据时间段获取数据(空值添加)

lizijie

2020-08-10 a0d6a762c6429469a257b9dc514ae8e34e7e0433

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package com.moral.mapper; 
 
import com.moral.common.mapper.BaseMapper; 
import com.moral.entity.Town; 
 
public interface TownMapper extends BaseMapper<Town>{ 
     
}