mybatis定义sql语句标签之delete标签解析

<delete id="deletenodeById">
        delete from t_node_agent where node_id=#{nodeId}
</delete>

<!-- 删除学生 -->  
<delete id="deleteStudent" parameterType="StudentEntity">  
        DELETE FROM STUDENT_TBL WHERE STUDENT_ID = #{studentID}  
</delete> 

<!-- 通过主键集合批量删除记录 -->
<delete id="batchRemoveUserByPks" parameterType="java.util.List">
　　DELETE FROM LD_USER WHERE ID in 
　　<foreach item="item" index="index" collection="list" open="(" separator="," close=")">
　　　　#{item}
　　</foreach>
</delete>