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#متن_کاوی_با_پایتون

❇️ پیدا کردن عبارتهای خاص

🔸هشتک ها

با استفاده از حلقه for و متد startswith میتوانیم کلماتی که با هشتگ شروع میگردند را استخراج کنیم.

»> [w for w in text13 if w.startswith('#')]
['#UNSG']


🔸 ات ساین

( کلماتی که با @ شروع میگردند) : همان دستور بالا رو مینویسیم فقط بجای شارپ از ات ساین استفاده میکنیم:
»> [w for w in text13 if w.startswith('@')]
['@', '@UN', '@UN_Women']


اتفاقی که در بالا افتاد کلمه بعد از @ نیومده و دلیلش فاصله ای است که بین @ و کلمه بعدش بود. حالا برای این مشکل باید چیکار کنیم. عبارت های خاص در این بخش لزوما باید یک کلمه ای باشد که با @ چسبیده باشد. و اگر @ به تنهایی وارد شد را نباید بعنوان یک عبارت خاص در نظر گرفت. در بخش بعدی راه حلی را ارائه خواهیم داد.

🎯 این آموزش رو بفرستید برای علاقه مندان متن کاوی


🗂 مرکز آموزش پایتون
➖➖➖➖➖➖➖➖
🆔 : @pythonchallenge

چالش پایتون
چالش پایتون
#متن_کاوی_با_پایتون ❇️ در درس سوم میخواهیم در مورد عبارتهای منظم و پردازش روی متن های آزاد صحبت کنیم. هنگامی که شما در حال پردازش متن آزاد هستید، عبارتها و الگوهای منظم نقش مهمی را ایفا خواهند کرد. بنابراین بگذارید یک مثال بزنیم. ❇️ متن زیر یکی از توییتهای…
#متن_کاوی_با_پایتون

❇️ پیدا کردن عبارتهای خاص

🔸هشتک ها

با استفاده از حلقه for و متد startswith میتوانیم کلماتی که با هشتگ شروع میگردند را استخراج کنیم.
»> [w for w in text13 if w.startswith('#')]
['#UNSG']


🔸 ات ساین

( کلماتی که با @ شروع میگردند) : همان دستور بالا رو مینویسیم فقط بجای شارپ از ات ساین استفاده میکنیم:
»> [w for w in text13 if w.startswith('@')]
['@', '@UN', '@UN_Women']


اتفاقی که در بالا افتاد کلمه بعد از @ نیومده و دلیلش فاصله ای است که بین @ و کلمه بعدش بود. حالا برای این مشکل باید چیکار کنیم. عبارت های خاص در این بخش لزوما باید یک کلمه ای باشد که با @ چسبیده باشد. و اگر @ به تنهایی وارد شد را نباید بعنوان یک عبارت خاص در نظر گرفت. در بخش بعدی راه حلی را ارائه خواهیم داد.

🎯 این آموزش رو بفرستید برای علاقه مندان متن کاوی


🗂 مرکز آموزش پایتون
➖➖➖➖➖➖➖➖
🆔 : @pythonchallenge
👍4
hottg.com/pythonchallenge/1650
828 views


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Telegram Auto-Delete Messages in Any Chat

Some messages aren’t supposed to last forever. There are some Telegram groups and conversations where it’s best if messages are automatically deleted in a day or a week. Here’s how to auto-delete messages in any Telegram chat. You can enable the auto-delete feature on a per-chat basis. It works for both one-on-one conversations and group chats. Previously, you needed to use the Secret Chat feature to automatically delete messages after a set time. At the time of writing, you can choose to automatically delete messages after a day or a week. Telegram starts the timer once they are sent, not after they are read. This won’t affect the messages that were sent before enabling the feature.

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