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1968 . . . 1985 . Borland Turbo Pascal 3.0. .
Turbo Pascal 4.0 . 5.0 . , VGA. Help.
6.0 - . . .
1992 . Turbo Pascal - 7.0. , , .
, . . Pascal (Object Pascal, Turbo Pascal, Delphi, PascalABC .). Pascal .
Pascal ABC, .. - . Pascal ABC . .. , .
, , . Pascal ABC Delphi Pascal , - .
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1. Program ;
2. 頠 uses ;
3. label ;
4. const ;
5. type ;
6. var ;
7. procedure ; function ;
8. begin end.
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PROGRAM FIRST;
CONST
FAM = '';
KAF = '';
KURS = 1;
GRUP = 3;
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var. . .
:
a: integer;
b: boolean;
c, b: real;
e: integer;
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Pascal . PascalABC .
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type
Season = (Winter,Spring,Summer,Autumn);
DayOfWeek = (Mon,Tue,Wed,Thu,Fri,Sat,Sun).
,
a.. b,
a - , b - :
Var
k: 0..10;
p: 'a'..'n';
s: Mon..Sat.
, , .
real ( ). 8 , 15-16 -1.7∙10308.. 1.7∙10308. 5.0∙10-324. real , :
1.7;
0.013;
2.5e3 (2500);
1.4e-1 (0.14).
boolean ().
1 , True ( - 1) False ( - 0).
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{ }, (**)
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Read ( );
Readln ( ).
- , .
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Read(number);
Readln(X,Y).
(, , ). . :
Write ( );
Writeln ( ).
- () , .
:
Writeln(': ',,,,D);
Write(number,X).
writeln . write writeln :
Write (a:5:2);
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:= ;
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a:=1000;
b:=5;
a:=a+b.
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| 1 | * | |
| / | ||
| div | 2 | |
| mod | 2 | |
| 2 | + | |
| - |
div mod .
, . .
.
| | x | | abs(x) | x | Integer (I) Real (R) |
| x 2 | sqr(x) | x | I R, R |
| sin x cos x arctg x | sin(x) cos(x) arctan(x) | I R, R | |
| ex ln x | exp(x) ln(x) | I R, R | |
| sqrt(x) | x | I R, R |
| trunc(x) | , | R, I | |
| frac(x) | R | ||
| round(x) | R, I |
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and, or xor, not. boolean boolean. , boolean, ().
. ,
.
and ( , , &, ^, ""). a & b true , a b true, false:
true and true = true;
true & false = false;
false ^ false = false.
or ( , , +, v, ""). a + b false , a b false, true:
true or true = true;
true + false = true;
false v false = false.
a xor b (" "). false , a b , true.
not ( ,, −, "").
not a , a:
not true = false;
false = true.
. : a<b, c>=d, x=y .. ():
= ;
<> ;
< ;
> ;
<= ;
>= .
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1) ;
2) ;
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4) .
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program first; //
uses crt; //
var x, y, s:integer; //
begin //
writeln( ); //
readln(x,y); //
//
s:=x+y; //
//
writeln( =,s); //
//
end. // .
