تابع open در پایتون (قسمت2)

4 دیدگاه. ارسال دیدگاه جدید

• 

  peyman

  شهریور 4, 1402 9:54 ق.ظ

  ‘a+’ Mode:
  File Creation: Creates the file if it doesn’t exist.
  File Pointer Position: Positioned at the end of the file initially.
  Use Case: Appending new data to an existing file without removing previous content.
  Existing Content: Existing content is not removed; new data is added after it.
  Append and Read: Allows both appending new data and reading from the file.

  ‘w+’ Mode:
  File Creation: Creates the file if it doesn’t exist or truncates existing content.
  File Pointer Position: Positioned at the beginning of the file initially.
  Use Case: Writing new data and potentially overwriting or replacing existing content.
  Read and Write: Allows both reading and writing to the file.

  ‘r+’ Mode:
  File Creation: Requires the file to already exist; won’t create a new file.
  File Pointer Position: Positioned at the beginning of the file initially.
  Use Case: Reading from and writing to an existing file without truncating its content.
  Existing Content: Existing content can be read and modified.
  Read and Write: Allows both reading and writing to the file.
  پاسخ
  • 

    احمد احمدی

    شهریور 5, 1402 4:20 ق.ظ

    کامل، صحیح و عالی 🙏🏻
    پاسخ
• 

  h.bateni

  آبان 26, 1402 2:11 ب.ظ

  +w میاد و content های داخل فایل را پاک میکنه یا فایلی را بوجود میاره. اما +r فقط فایلی را که وجود داره را میخونه و رایت می کنه. pointer در هر دو فایل در اول فایل میاد.
  +a هم به آخر فایل اضافه میکنه و فقط به فایل قبلی اضافه میشه.
  پاسخ
  • 

    احمد احمدی

    آبان 27, 1402 1:39 ب.ظ

    سلام وقت‌بخیر ❤️🫡
    بسیار عالی. ممنون از مشارکتتون.
    پاسخ