, (.. ) , (true), (false). .
(). x y. , . . - .
:
: x < y
: x > y
: x = y
: x <> y
: x <= y
: x >= y
22
Real, Integer, Char ():
= - ;
<> - ;
< - ;
> - ;
<= - ;
>= - .
, Real Integer, . Boolean.
23
.
abs (x) | ||
sqr (x) | ||
sqrt (x) | ||
cos (x) | ||
sin (x) | ||
arctan (x) | ||
exp (x) | ex | |
ln (x) | ||
int (x) | ||
frac (x) |
, , , ..
ord (x) | - , , . |
round (x) | - . |
trunk (x) | - , . |
odd (x) | - . longint, true, , false . |
pred (x) | - x. |
succ (x) | - x. |
ord (x) | - x. |
24
, . , . :
|
|
,
,
,
.
25
- - program, .
, . . . - - , , . begin end .
/ , . () , . .
, () .
. () .
, . ; , , , .
, . , (), ("") . , () , . .
26
read readln:
read();
readln[()];
. , . :
read(a, b, c); readln(y);
readln;
: , , . (, , ).
:
- , ;
- , ;
- , .
27
: , . write writeln:
write();
writeln[()];
, , , write , writeln . writeln .
|
|
, , , . , , - .
.
.
, , , .
. , , , "" .
, , . , .
, , . 17 , 10 - .
.
28
- . :
:=
, V:=A; V:=A+1;
, .
, . , .
(.. ), , . (.. ).
, . , .
30
- . begin end . , . . .
end , , ; . end , end . .
31
.
- IF CASE, GOTO. .