select * from user where user_id = #{id} select * from user select * from user where user_name = #{name} select * from user where user_name like '%${value}%' insert into user(user_name,user_pwd,user_email) values(#{user_name},#{user_pwd},#{user_email}) update user user_name = #{user_name}, user_pwd = #{user_pwd}, user_email = #{user_email}, user_headImg = #{user_headImg} where user_id = #{user_id}