Type kutendeuka. Round uye Trunc basa iri "Pascal"

Kushanda mu "Pascal" pamwe variables pakubhadhara siyana, kazhinji kugadzirisa yokuti kana rokunyora purogiramu kukanganisa kunoitika, zvichiratidza munhu kururama kutendeuka tsika. Somuenzaniso, haugoni kurongera shanduka kuti mhando integer kukosha 5,9, sezvo izvi zvichaguma compiler chikanganiso. Muchiitiko ichi zvakafanira kutaura kushandisa mashandiro Trunc uye Round mu "Pascal", iyo unogona kutendeutsa mhando nharo uye kuramba kuita mamwe mabasa kwavari.

General ruzivo pamusoro mhando kupinduka

Type kutendeuka (rutapudzo ukoshi) - muitiro rokutendeutsa tsika imwe date mhando kune mumwe. Kusiyanisa yakajeka uye zvakazara Kudzingwa. wokutanga Wakaisa The zvakananga nokuda yokuvaka uchishandisa chero mutauro constructs, kana kuburikidza nokushandisa mashandiro, uye wechipiri rinoitwa pasina nokuda compiler kana muturikiri yemirau code, vakazivisa pakati mureza mumwe zvirongwa mutauro zvikuru.

Type kutendeuka muna Pascal

Mu "Pascal" zvirongwa mutauro unogona kushandiswa yakajeka kana zvakazara mhando kutendeuka.

With yakajeka actuation mhando "Pascal" anoshandiswa kunoda chaiwo kutendeutsa mabasa vane nharo ndezvaJehovha kwakadaro, uye mutengo - akasiyana chaizvo mhando mashoko. ndivo vaya Trunc basa iri "Pascal" uye Round basa, izvo dzichakurukurwa zvizere pazasi.

Zvakakwana mhando mumutauro uyu zvinogoneka chete idzodzo zviitiko apo mashoko, iyo ine integer uye chaivo variables ndivo vanonzi kutendeuka kutanga rechipiri mhando.

Zvinotevera hurukuro chinotarisa, sei iwe unogona dzika kuunza Numeric mashoko mhando.

Trunc

Pakuvara kwemasvomhu mabasa. Trunc mu "Pascal" achirasa vose fractional chikamu nharo, zvichizoita kuti tselochiselnomu pfungwa. Somuenzaniso, nokudana Trunc nharo (1.73) kunogona kuwanikwa pakupedzisira mugumisiro uri 1.

nemarongerwo : zvinhu: Trunc (X: chaihwo): Longint.

denderedzwa

Pakuvara kwemasvomhu mabasa. Round basa vaitenderera kure nharo maererano nemitemo wemasvomhu kusvika padyo rose nhamba. Somuenzaniso, achidana Round (1.73) pakupedzisira zvakazofamba 2, uye Round renharo (1.11) kupa 1.

функции : nemarongerwo Its ndiko: denderedzwa (X: chaihwo): Longint.

Zvinokosha kucherechedza kuti mugumisiro kuita mabasa Trunc uye Round mu "Pascal" ane painogumira. Kuuraya vachakundikana kana ichi mugumisiro It anoenda mhiri Longint mhando ukoshi.

Zviri pachena kuti nemarongerwo vaviri vakavaka-mu anoitwa nyore uye rinogona kushandiswa muna Round uye Trunc "Pascal" nokuti yakajeka mhando kutendeuka pasina zvimwe zvinetso uye zvinokonzera batanidza zvikanganiso pamusoro kutyora mhando.