text: package com.gdp.mooc.biz;
  
  import java.util.List;
  
  import com.gdp.mooc.entity.Review;
  
  public interface ReviewBiz {
  	List<Review> select(int courseid);
  	 int delete(Review review);
  	 int insert(Review review);
  	 String avglable(int courseid);
  	 List<Review> selectbyuserid(String username);
  	 int updateByPrimaryKeySelective(List<Review> reviews);
  }
  