合并实现查询无人机平均值，最小值和最大值

ZhuDongming

2019-08-19 3408c937d85c3419082ad23e66f81edec817fc45

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