#namespace("Demo")
    #sql("getDemoList")
      select id,demo_name,	created_date,	created_by,	last_updated_by,	last_updated_date,	b_use from t_base_demo where 1=1
      #if(demo_name)
        and  demo_name like '%#(demoName)%'
      #end
       and b_use=#(b_use)
    #end

    #sql("deleteDemoById")
      update t_base_demo set b_use= 0 where demo_id =#(demoId)
    #end
#end