Basic | ||
= | ||
<> | ||
> | ||
< | ||
>= | ||
<= |
, . .
, -, - . False ru 0 -1, 0 , , -1 , 1 (. 3).
NOT. , . , NOT ru False ( , ru); NOT (4 < 3) ru, (4 < 3) . , . , , , , , , .
( ) AND. True, True. and ( ), , , : , .
OR True, True True. : , 50 .
, .
1. , S, 60¸100 , [60,100] :
S >= 60 AND S <= 100.
2. , S, 60¸100 , [60,100] :
NOT (S >= 60 AND S <= 100);
, ,
S < 60 OR S > 100.
(), () XOR, EQV IMP. 8. .
3