TGINSIGHT SIMILAR POSTS
Изворен канал @pythonotes · Post #32 · 7 фев.
Скорее всего уже слышали, что складывать строки через + это плохая практика. Падение производительности, и всё такое. Без лишних слов, давайте измерять: from timeit import timeit def t1(): # складываем 10 строк через + из переменной t = 'text' for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t2(): # склеиваем список строк через метод join arr = ['text'] * 10 for _ in range(1000): s = ''.join(arr) def t3(): # складываем через + но не из переменной а непосредственно инлайн объекты for _ in range(1000): s = 'text' + 'text' + 'text' + ... # всего 10 раз Теперь каждую строку склейки запустим по 10М раз >>> timeit(t1, number=10000) 0.21951690399964718 >>> timeit(t2, number=10000) 1.4978306379998685 >>> timeit(t3, number=10000) 0.2213820789993406 Хм, а нам говорили что через "+" это плохо и медленно ))) 😁 Тут стоит учитывать, что речь идёт о склейке множества длинных строк. Давайте изменим условия: def t4(): t = 'text'*100 for _ in range(1000): s = t + t + t + t + t + t + t + t + t def t5(): arr = ['text'*100] * 10 for _ in range(1000): s = ''.join(arr) def t6(): for _ in range(1000): s = 'text'*100 + 'text'*100 + ... # всего 10 раз >>> timeit(t4, number=10000) 12.795130728000004 >>> timeit(t5, number=10000) 2.642637542999182 >>> timeit(t6, number=10000) 0.2184546610005782 Вот, уже другой разговор, сразу видна разница, в среднем в 6 раз. Но погодите, почему последний тест t6() по скорости такой же как и t3()? Ведь строки теперь в 100 раз длиннее! Это вопросы оптимизации кода, какие простые изменения ускоряют или замедляют выполнение программы. Мы столкнулись с примером обхода обращения к переменной. Например, именно так работает директива #define в С++, во время компиляции подставляя значение переменной вместо ссылки на неё. В Python это тоже работает, но часто ли вы сможете встретить такой способ работы со строками? К сожалению, способ почти только теоретический. В целом, тесты показали то, что мы хотели. Делаем выводы самостоятельно. Полный листинг 🌍 #tricks
Пребарај: #opensignups
@PrivateTrackerNews · Post #490 · 21.05.2019 г., 16:30
2019/05/22 #开放注册 #OpenSignups #国外PT 整理自电报@PT资讯频道 @privatetrackernews 电子学习/在线学习 Open: #Onlineselfeducation | e-Learning Tracker's Name: Onlineselfeducation Genre: e-Learning Sign-up Link: https://onlineselfeducation.com/signup.php Closing date: n/a
@PrivateTrackerNews · Post #440 · 14.05.2019 г., 19:01
2019/05/15 #开放注册 #OpenSignups #国内PT 整理自电报PT资讯频道 @privatetrackernews #翻车站MolaMola 来自PT贴吧吧友 UNIT3D架构 新站 https://molamola.la/register/null
@PrivateTrackerNews · Post #392 · 02.05.2019 г., 14:17
2019.5.2 #开放注册 #OpenSignups #国内PT #整理自电报PT资讯频道 @privatetrackernews #时间HDTime 影视类综合站 https://hdtime.org/signup.php
@PrivateTrackerNews · Post #431 · 12.05.2019 г., 02:30
2019.5.12 #开放注册 #OpenSignups #国外PT #整理自电报PT资讯频道 @privatetrackernews #TheXchange #General 综合站 https://the-xchange.biz/signup.php Closing date:13/05
@PrivateTrackerNews · Post #416 · 08.05.2019 г., 19:29
2019.5.9 #开放注册 #OpenSignups #国内PT #整理自电报PT资讯频道 @privatetrackernews #梦想家PTDreamPlus 开放注册第二期 综合站 新站 开放时间：2019/5/8/18:00 结束时间：2019/5/9/08:00 https://plus.ptdream.net #老师站NicePT xxx 专业开车 5月11日至5月12日開注計劃 https://www.nicept.net
@PrivateTrackerNews · Post #403 · 04.05.2019 г., 14:08
2019.5.4 #开放注册 #OpenSignups #国内PT #整理自电报PT资讯频道 @privatetrackernews #普斯特HDPost 综合站 小体积 https://hdpost.top/authentication/signup #普斯特外站论坛 一直开放注册 https://www.t00p.top/
@PrivateTrackerNews · Post #454 · 17.05.2019 г., 04:19
2019/05/17 #开放注册 #OpenSignups #国外PT 整理自电报PT资讯频道 @privatetrackernews Tracker's Name: #FinElite Genre: #General Sign-up Link: https://finelite.org/login.php?returnto=%2F#register Closing date:Soon! Additional information:FinElite (FE) is a Finnish Private Torrent Tracker for Movies / TV / General Releases. 5k+torrents. 电影电视综合站，芬兰站。 Tracker's Name: #NordicBits (NB) Genre: #General Sign-up Link: https://nordicb.org/signup.php Closing date:Soon! Additional information:NordicBits (NB) is a Nordic Private Torrent Tracker for Movies / TV / General Releases. 30k+torrents. 电影电视综合站，北欧站。 Tracker's Name: #DigitalCore (DC) Genre: #General Sign-up Link: https://digitalcore.club/signup/secretdoor Closing date:Soon! Additional information:DigitalCore (DC) is a Private Torrent Tracker for 0Day / General Releases. 零日综合站。
@PrivateTrackerNews · Post #481 · 20.05.2019 г., 15:50
2019/05/20 #开放注册 #OpenSignups #国外PT 整理自电报@PT资讯频道 @privatetrackernews 新站高清资源站 Tracker's Name: #TorrentZoneBD Genre: General Sign-up Link: http://torrentzonebd.com/index.php?page=signup Closing date: Coming Soon Additional information: ||Tracker Description|| TorrentZoneBD is fairly a new a Tracker In torrenting World . Its Consider As a FHD Tracker For Lots Of GOOD Contents Available On there . Sits's stats are Like this they have new registered users from a maximum of 20k. This site specially base on Movies , Drama Serials, Games, WWE & Porn Collection. Enjoy the moment. Free Leech enabled for all torrents (including new uploads). No download stats will be recorded. Till : 07-06-2k19 So guys harry up and make account. 阿拉伯动漫站，10周年开放注册 Tracker's Name: #3arbya Genre: Anime Sign-up Link: https://tracker.3arbya.info/login.php Closing date: Open during 20\5\2019 for the 10th anniversary. Additional information: 3arbya is an Arabic Private Torrent Tracker for Anime Releases #OpenApplicationSignup 亚洲电影电视，开放申请注册 Tracker's Name: #AsianCinema (Open for Application Signup) Genre: General Sign-up Link: https://asiancinema.me/application Closing date: N/A Additional information: AsianCinema is a Private Torrent Tracker for Asian Movies / TV Releases.
@PrivateTrackerNews · Post #466 · 18.05.2019 г., 13:00
2019/05/18 #开放注册 #OpenSignups #国外PT 整理自电报PT资讯频道 @privatetrackernews 匈牙利XXX Tracker's Name: #Kufirc Genre: XXX Sign-up Link: https://kufirc.com/register.php Closing date: Soon! Additional information: Kufirc is a Hungarian Private Torrent Tracker for XXX Releases. 综合站 Tracker's Name: #The-Torrents Genre: General Sign-up Link: http://the-torrents.org/signup.php Closing date: N/A 法国电影电视综合站 Tracker's Name: #Tigers-dl Genre: General Sign-up Link: https://www.tigers-dl.net/index.php?page=account Closing date: N/A Additional information: Tigers-dl is a French Private Torrent Tracker for Movies / TV / General Releases. 亚洲电影电视综合站 Tracker's Name: #AsianCinema Genre: General Sign-up Link: https://asiancinema.me/register/null Closing date: N/A Additional information: AsianCinema is a Private Torrent Tracker for Asian Movies / TV Releases.
@PrivateTrackerNews · Post #463 · 17.05.2019 г., 20:02
2019/05/18 #开放注册 #OpenSignups #国外PT 整理自电报PT资讯频道 @privatetrackernews Tracker's Name: #HQSource (HQS) Genre: General Sign-up Link: https://hqsource.org/signup.php Closing date: 5/19 Additional information: HQSource (HQS) is a Polish Private Torrent Tracker for HD Movies / TV / General Releases. 波兰高清电影电视综合站 Tracker's Name: #xblades-kingdom Genre: General Sign-up Link:https://xblades-kingdom.net/signup.php Closing date:no closeing date Additional information:All torrents on seedbox download,we are looking for uploaders,Why not pop in and say hello 综合站 Tracker's Name: #SceneTime Genre: General Sign-up Link:https://www.scenetime.com/login.php Closing date:N/A Additional information:SceneTime (ST) is a Private Torrent Tracker for 0-Day / General Releases. 零日综合站 Tracker Name: #Herobit Genre: General Sign Up Link: https://www.herobit.cc//signup.php Closing Time: soon Additional Information: Herobit is a Turkish Private Tracker for Movies/TV Shows etc… + Local , Turkish dubbed, with Turkish subtitle content is available. 土耳其电影电视综合站
@PrivateTrackerNews · Post #412 · 07.05.2019 г., 00:46
2019.5.7 #开放注册 #OpenSignups #国外PT #整理自电报PT资讯频道 @privatetrackernews #MusicMaster #Music 音乐站 https://music-master.ro/signup.php #Exoticaz #AsianXXX 亚洲xxx https://exoticaz.to/register
@PrivateTrackerNews · Post #450 · 15.05.2019 г., 18:21
2019/05/16 #开放注册 #OpenSignups #国外PT 整理自电报PT资讯频道 @privatetrackernews #Generationfree #General#French 综合站 法国站 https://generation-free.biz/account-signup.php Closing date: Open until the end of week. Generation-free is a French Private Torrent Tracker for Movies / TV / General Releases. Torrents:1.9k+,Membres:1k+/10k+ #FreeTorrent #General#French 综合站 法国站 https://freetorrent.tk/register/null FreeTorrent is a French Private Torrent Tracker for Movies / TV / General Releases. start from 2018, 3k+users,1K+torrents,powered by UNIT3D. #CGPeers 设计素材类 https://www.cgpeers.to/register.php Closing date:Open for about 48 hours. CGPeers is a Private Torrent Tracker for 3D/Visual Effects / Computer Graphics/Design / Computer Assisted Art material.