求助（打开不了窗口）

经测试，没报错。不过在运行的时候，窗口打开不了。

全军变量定义了     就是这句（string gs_id,gs_mm,gs_quanxian,gi_quanxian）



string ls_username,ls_password

ls_username=trim(sle_id.text)
ls_password=trim(sle_password.text)
if ls_username="" or ls_password="" then
    messagebox("提示","用户名和密码不能为空")
   
   
   
else

   
    SELECT "personal_information"."id", "personal_information"."quanxian", "personal_information"."mm"
    INTO :gs_id,:gs_mm,:gs_quanxian
    FROM "personal_information"

   
   
    WHERE ( "personal_information"."id"=:ls_username   ) AND
          ( "personal_information"."mm" =:ls_password  );
            gi_quanxian=trim(gs_quanxian)
            
      if sqlca.sqlcode=0 then
    if gi_quanxian ='1' then
          open(w_yuangong_main)
    elseif gi_quanxian ='2' then
          open(w_admin_main)
    elseif gi_quanxian='3' then

         open(w_shangji_main)
        
        close(w_login)
end if
else


   end if

end if