An warware: rubuta fitarwa a wuri guda

Rubutun kayan aikin na'ura a wuri ɗaya na iya zama dabara mai amfani ga masu haɓakawa yayin aiki tare da aikace-aikacen Python, musamman lokacin haɓaka mu'amalar mai amfani a cikin layin umarni, ƙirƙirar alamun ci gaba, da sabunta bayanan wasan bidiyo a cikin ainihin lokaci. Wannan labarin zai tattauna mafita don sake rubuta kayan aikin wasan bidiyo, bayyana lambar mataki-mataki, da nutsewa cikin takamaiman ɗakunan karatu da ginanniyar ayyukan Python waɗanda ke sa wannan aikin ya yiwu.

Don cimma wannan, za mu iya amfani da sanannen ɗakin karatu na Python “la’ananne” wanda aka tsara musamman don ƙirƙirar aikace-aikacen tushen tasha waɗanda suka dogara sosai kan amfani da mu’amalar masu amfani da rubutu. Koyaya, don manufar sauƙi da sauƙin fahimta, za mu yi amfani da ginanniyar ginanniyar “sys” da “lokaci” na Python don sake rubuta abubuwan na'ura wasan bidiyo.

Rubutun Console a cikin Python

Babban ra'ayin shine amfani da sys.stdout.write() aiki, wanda ke ba mu damar buga a cikin layi ɗaya, tare da dawowar kaya hali ("r") don komawa farkon layin, yana ba mu damar sake rubuta abin da aka fitar.

Ga misali na sake rubuta kayan aikin wasan bidiyo ta amfani da Python:

import time
import sys

for i in range(10):
    sys.stdout.write("rStep: %d" % i)
    sys.stdout.flush()
    time.sleep(1)

Bayanin mataki-mataki na Code

1. Da farko, shigo da samfuran da ake buƙata:

   import time
   import sys
   

The lokaci za a yi amfani da module don ƙara jinkiri tsakanin maimaitawa, da sys za a yi amfani da module don rubuta fitarwa zuwa na'ura mai kwakwalwa.

2. Na gaba, ƙirƙiri madauki don ƙididdige yawan lambobi, yin kwatankwacin ma'aunin ci gaba:

   for i in range(10):
   

Wannan madauki yana maimaita daga 0 zuwa 9, yana aiki sosai sau goma.

3. A cikin madauki, yi amfani da sys.stdout.write() aiki don buga lambar izza ta yanzu tare da lakabi:

   sys.stdout.write("rStep: %d" % i)
   

Halin "r" shine komawar karusar da ke aiki azaman sake saiti zuwa farkon layin, yana barin fitarwa ta gaba ta sake rubuta na yanzu.

4. Tabbatar da amfani sys.stdout.flush() bayan rubuta zuwa console:

   sys.stdout.flush()
   

Aikin flush() yana share buffer na ciki kuma yana tabbatar da cewa an nuna fitarwa nan da nan.

5. A ƙarshe, ƙara jinkiri ta amfani da lokaci.barci() aiki:

   time.sleep(1)
   

Wannan tsaikon zai ɗauki tsawon daƙiƙa ɗaya, yana sauƙaƙa ganin an sake rubuta abin da aka fitar.

Yanzu zaku iya ganin yadda ake sake rubuta kayan aikin na'ura akan kowane juzu'i.

Bayanin Laburare na "sys".

The sys ɗakin karatu wani ƙaƙƙarfan ginannen tsarin Python ne mai ƙarfi wanda ke ba da dama ga abubuwan ciki na mai fassarar da takamaiman takamaiman tsarin tsarin. A cikin wannan labarin, mun mayar da hankali kan amfani sys.stdout.write() da kuma sys.stdout.flush() ayyuka don sake rubuta kayan aikin wasan bidiyo. Koyaya, ɗakin karatu na "sys" yana ba da wasu ayyuka masu yawa, kamar gardamar layin umarni, byteorder, keɓancewa, da hanyoyin da aka riga aka ayyana.

Overview na "lokaci" Library

The lokaci ɗakin karatu wani tsarin Python ne wanda aka gina a ciki wanda ke ba da ayyuka iri-iri masu alaƙa da sarrafa lokaci da sarrafawa. A cikin misalinmu, mun yi amfani da kayan aiki lokaci.barci() aiki don ƙirƙirar jinkiri tsakanin maimaitawa. Laburaren "lokaci" kuma yana ba da wasu kayan aiki don auna lokacin kisa, canzawa tsakanin tsarin lokaci, da samun lokacin da ake ciki. Wannan tsarin yana da mahimmanci ga masu haɓaka aiki tare da ayyuka masu alaƙa da lokaci ko tsara ayyuka a cikin aikace-aikacen Python.