select id, from_id, from_name, to_id, to_name, msg_type, content, create_time from cms_site_msg
insert into cms_site_msg
from_id,from_name,to_id,to_name,msg_type,content,create_time,#{fromId},#{fromName},#{toId},#{toName},#{msgType},#{content},#{createTime},
update cms_site_msg
from_id = #{fromId},from_name = #{fromName},to_id = #{toId},to_name = #{toName},msg_type = #{msgType},content = #{content},create_time = #{createTime},
where id = #{id}
delete from cms_site_msg where id = #{id}
delete from cms_site_msg where id in
#{id}