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Oktatás * Programozás 1 * Szkriptnyelvek Teaching * Programming 1 (BI) * Scripting Languages Félévek * aktuális (2023/24/2) Linkek * kalendárium |
Py3 /
20120905aDictionary #1 Töltsük le a dict1.py fájlt s egészítsük ki a A #!/usr/bin/env python3 # coding: utf-8 """ Szavak előfordulási gyakorisága Állapítsuk meg, hogy az alábbi szövegben (TEXT) melyik szó hányszor fordul elő s írassuk ki az eredményt a következő formában: szó_1 előfordulások_száma_1 szó_2 előfordulások_száma_2 ... Az eredményt úgy írassuk ki, hogy a lista szavak szerint rendezve legyen. Minden szó kisbetűsen szerepeljen, vagyis pl. a 'The' és 'the' szavak azonos szónak számítanak. Használjuk az str.split() függvényt (paraméter nélkül) a whitespace karakterek eltávolítására. Az egyes szavakhoz kapcsolódó írásjelekkel (pont, vessző, idézőjel, stb.) nem kell most foglalkozni. A programot ne egyben próbáljuk megírni. Először írjuk meg egy részét, majd próbáljuk ki, hogy addig jól működik-e. Ha igen, lépjünk tovább. """ ############################################################################# TEXT = """The Old Sea-dog at the Admiral Benbow SQUIRE TRELAWNEY, Dr. Livesey, and the rest of these gentlemen having asked me to write down the whole particulars about Treasure Island, from the beginning to the end, keeping nothing back but the bearings of the island, and that only because there is still treasure not yet lifted, I take up my pen in the year of grace 17__ and go back to the time when my father kept the Admiral Benbow inn and the brown old seaman with the sabre cut first took up his lodging under our roof. I remember him as if it were yesterday, as he came plodding to the inn door, his sea-chest following behind him in a hand-barrow--a tall, strong, heavy, nut-brown man, his tarry pigtail falling over the shoulder of his soiled blue coat, his hands ragged and scarred, with black, broken nails, and the sabre cut across one cheek, a dirty, livid white. I remember him looking round the cover and whistling to himself as he did so, and then breaking out in that old sea-song that he sang so often afterwards: "Fifteen men on the dead man's chest-- Yo-ho-ho, and a bottle of rum!" in the high, old tottering voice that seemed to have been tuned and broken at the capstan bars. Then he rapped on the door with a bit of stick like a handspike that he carried, and when my father appeared, called roughly for a glass of rum. This, when it was brought to him, he drank slowly, like a connoisseur, lingering on the taste and still looking about him at the cliffs and up at our signboard. "This is a handy cove," says he at length; "and a pleasant sittyated grog-shop. Much company, mate?" My father told him no, very little company, the more was the pity. "Well, then," said he, "this is the berth for me. Here you, matey," he cried to the man who trundled the barrow; "bring up alongside and help up my chest. I'll stay here a bit," he continued. "I'm a plain man; rum and bacon and eggs is what I want, and that head up there for to watch ships off. What you mought call me? You mought call me captain. Oh, I see what you're at-- there"; and he threw down three or four gold pieces on the threshold. "You can tell me when I've worked through that," says he, looking as fierce as a commander.""" def main(): # TODO... pass ############################################################################# if __name__ == '__main__': main() Finomítás Otthoni házi feladatként oldjuk meg az írásjelek eltávolítását. Figyeljünk arra, hogy egyes írásjeleket meg kell hagyni, pl. " |
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