Prolog
- , , .
: , , .
: , , .
, , .
- , , .
, 4 : {A..Z},{a..z}, {0..9},{+ - * / ^ < > ~ : . ? @ # $ &}.
. .
, :
- ,
- , .
, date(Day,,1999) date(Day1,,1999) , Day Day1 1 31.
1 .
, . , , , . .. , , .
, , .
. . , .
- .
, , . : a, "_", "this_is_atom".
, , . : V, _25.
C ( ) - , . , , .
( ) - .
. , , ( , ) .
, , : , : ( 1, , 2000 ) .
:
- - ;
- CONSTANTS - ;
- DOMAINS - ;
- DATABASE - ;
- PREDICATES - ;
- CLAUSES - ;
- GOAL - .
trace .
. , , :
GOAL
write("hello"),readchar(_).
, , , PREDICATES CLAUSES.
, GOAL . , , .
DOMAINS, PREDICATES, DATABASE CLAUSES. GOAL .
, , . DOMAINS , .
. . - :
+ ,
,
* ,
/ ,
mod ,
div .
- , [X ] , [1,2,3]. : X is ([l,2,3]+5) 6.
=:=, =\=, >, <, >= <= .
@ X@Y , Y , @.
. Y - , .
:
=:= Y Y
=\= Y Y
< Y Y
> Y Y
<= Y Y
>= Y Y
file = < 1>;...;
< N>
- .
filemode(SymbolicFileName,Mode) - ( Mode :
0 - Binary Mode,
1 - Text Mode).
.
, , . , , . , , .
openread(SimbolicFileName,OSFileName) . , .
openwrite(SimbolicFileName,OSFileName) . . , . - , .
openappend(SimbolicFileName,OSFileName) . , .
openmodify(SimbolicFileName,OSFileName) . , .
, , existfile(OSFileName). . , , , , .
, .
"\", , , ("\\"). , "C:\Prolog\BIN", "C:\\Prolog\\BIN".
, closefile. . , . .
deletefile(OSFileName) , . - , .
renamefile(OldOSFileName, NewOSFileName) , , , . , , , , .
eof(SymbolicFileName) ( End Of File " ") , , . . . , , .
file_str(SymbolicFileName,String) , , , , . , , .
flush(SimbolicFileName) , , . .
.
, . , .
:
DOMAINS
< >=< >*
, , .
[monday, tuesday, wednesday, thursday, friday, saturday, sunday] , ;
["", "", "", "", "", "", ""] , ;
[1, 2, 3, 4, 5, 6, 7] , ;
['', '', '', '', '', '', ''] , ;
[] , .. , ( nil).
, :
- ([ ]) ;
- [H|T] , H ( , ), T , .
, .
, .
length([], 0). /* */
length([_|T], L) :
length(T, L_T), /* L_T */
L = L_T + 1. /* L */
, ( , , ).
member(X,[X|_]). /* X */
member(X,[_|T]) :
member(X,T). /* X T*/
, . , .
conc([ ], L, L). /* L L */
conc([H|T], L, [H|T1]) :
conc(T,L,T1). /* L, */
:
- :
- ?-conc([1, 2, 3], [4, 5], X)
X= [1, 2, 3, 4, 5]
, , :
?-conc([1, 2, 3], [4, 5], [1, 2, 5]) No
:
:
last2([X],X). /* */
last2([_|L],X):
last2(L,X). /* */
, ( , , ).
reverse([ ],[ ]). /* */
reverse([X|T],Z):
reverse(T,S), conc(S,[X],Z). /* */
:
rev([H|T],L1,L2):
rev(T,[H|L1],L2). /* */
rev([ ],L,L). /* , */
, ( , , , , ).
n_element([X|_],1,X).
n_element([_|L],N,Y):
N1=N1,
n_element(L,N1,Y).
, .
is_list([_|_]).
, ( - , - ).
simple_list([],[]).
simple_list([H|List],List1):-
is_list(H), /* ,*/
simple_list(H,List1). /* simple_list */
simple_list([H|List],[H|List1]):-
not is_list(H), /* ,*/
simple_list(List,List1). /* simple_list - */
, ( , , ).
delete_all(_,[],[]).
delete_all(X,[X|L],L1):
delete_all (X,L,L1).
delete_all (X,[Y|L],[Y|L1]):
X<>Y,
delete_all (X,L,L1).
, , :
delete_one(_,[],[]).
delete_one(X,[X|L],L):!.
delete_one(X,[Y|L],[Y|L1]):
delete_one(X,L,L1).
, ( , , ).
add(X, L, [X|L]).
, , :
add(X, L, L):-member(X, L), !. add(X, L, [X|L]).
:
atom(X) -, X-.
integer(X) - , X-.
float(X) , .
compound(X) , .
atomic(X) - , X- .
var(X) - , X- .
nonvar(X) - , X- , ,
.
ground()- , .
number() - , .
string() , .
- , .. .
(), ().
:
assert(d) d ;
retract(d) , d;
asserta(d) - ;
assertz(d) - .
database.
, - - , . COM, CORBA, .Net.
| | 10.11.2021 - 12:37: - Personalias -> WHO IS WHO - - _.
10.11.2021 - 12:36: - Conscience -> . ? - _.
10.11.2021 - 12:36: , , - Upbringing, Inlightening, Education -> ... - _.
10.11.2021 - 12:35: - Ecology -> - _.
10.11.2021 - 12:34: , - War, Politics and Science -> - _.
10.11.2021 - 12:34: , - War, Politics and Science -> . - _.
10.11.2021 - 12:34: , , - Upbringing, Inlightening, Education -> , - _.
10.11.2021 - 09:18: - New Technologies -> , 5G- - _.
10.11.2021 - 09:18: - Ecology -> - _.
10.11.2021 - 09:16: - Ecology -> - _.
10.11.2021 - 09:15: , , - Upbringing, Inlightening, Education -> - _.
10.11.2021 - 09:13: , , - Upbringing, Inlightening, Education -> - _.
|
