select model_id, accessory_id from rl_model_accessory
insert into rl_model_accessory
model_id,accessory_id,#{modelId},#{accessoryId},
update rl_model_accessory
accessory_id = #{accessoryId},
where model_id = #{modelId}
delete from rl_model_accessory where model_id = #{modelId}
delete from rl_model_accessory where model_id in
#{modelId}