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🐍 Π—Π°Π΄Π°Ρ‡Π° ΠΏΠΎ Python: Замыкания ΠΈ области видимости

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠΉ ΠΊΠΎΠ΄?


def outer():
x = 5
def inner():
nonlocal x
x += 1
return x
return inner

f = outer()
print(f())
print(f())
print(f())


Π’Π°Ρ€ΠΈΠ°Π½Ρ‚Ρ‹ ΠΎΡ‚Π²Π΅Ρ‚Π°:
A)

7
8


B)

5
5


C)

6
6


D) Ошибка выполнСния

---

βœ… ΠŸΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ ΠΎΡ‚Π²Π΅Ρ‚: A

ΠŸΠΎΡ‡Π΅ΠΌΡƒ:
Ѐункция
outer создаёт Π·Π°ΠΌΡ‹ΠΊΠ°Π½ΠΈΠ΅. ΠŸΠ΅Ρ€Π΅ΠΌΠ΅Π½Π½Π°Ρ x сохраняСтся ΠΌΠ΅ΠΆΠ΄Ρƒ Π²Ρ‹Π·ΠΎΠ²Π°ΠΌΠΈ f, ΠΏΠΎΡ‚ΠΎΠΌΡƒ Ρ‡Ρ‚ΠΎ inner β€” Π·Π°ΠΌΡ‹ΠΊΠ°Π΅Ρ‚ x ΠΈ измСняСт Π΅Ρ‘ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ nonlocal. Π­Ρ‚ΠΎ классичСский ΠΏΡ€ΠΈΠΌΠ΅Ρ€ использования Π·Π°ΠΌΡ‹ΠΊΠ°Π½ΠΈΠΉ Π² Python.

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🐍 Π—Π°Π΄Π°Ρ‡Π° ΠΏΠΎ Python: Замыкания ΠΈ области видимости

Π§Ρ‚ΠΎ Π²Ρ‹Π²Π΅Π΄Π΅Ρ‚ ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠΉ ΠΊΠΎΠ΄?


def outer():
x = 5
def inner():
nonlocal x
x += 1
return x
return inner

f = outer()
print(f())
print(f())
print(f())


Π’Π°Ρ€ΠΈΠ°Π½Ρ‚Ρ‹ ΠΎΡ‚Π²Π΅Ρ‚Π°:
A)

7
8


B)

5
5


C)

6
6


D) Ошибка выполнСния

---

βœ… ΠŸΡ€Π°Π²ΠΈΠ»ΡŒΠ½Ρ‹ΠΉ ΠΎΡ‚Π²Π΅Ρ‚: A

ΠŸΠΎΡ‡Π΅ΠΌΡƒ:
Ѐункция
outer создаёт Π·Π°ΠΌΡ‹ΠΊΠ°Π½ΠΈΠ΅. ΠŸΠ΅Ρ€Π΅ΠΌΠ΅Π½Π½Π°Ρ x сохраняСтся ΠΌΠ΅ΠΆΠ΄Ρƒ Π²Ρ‹Π·ΠΎΠ²Π°ΠΌΠΈ f, ΠΏΠΎΡ‚ΠΎΠΌΡƒ Ρ‡Ρ‚ΠΎ inner β€” Π·Π°ΠΌΡ‹ΠΊΠ°Π΅Ρ‚ x ΠΈ измСняСт Π΅Ρ‘ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ nonlocal. Π­Ρ‚ΠΎ классичСский ΠΏΡ€ΠΈΠΌΠ΅Ρ€ использования Π·Π°ΠΌΡ‹ΠΊΠ°Π½ΠΈΠΉ Π² Python.

@pythonl

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Telegram and Signal Havens for Right-Wing Extremists

Since the violent storming of Capitol Hill and subsequent ban of former U.S. President Donald Trump from Facebook and Twitter, the removal of Parler from Amazon’s servers, and the de-platforming of incendiary right-wing content, messaging services Telegram and Signal have seen a deluge of new users. In January alone, Telegram reported 90 million new accounts. Its founder, Pavel Durov, described this as β€œthe largest digital migration in human history.” Signal reportedly doubled its user base to 40 million people and became the most downloaded app in 70 countries. The two services rely on encryption to protect the privacy of user communication, which has made them popular with protesters seeking to conceal their identities against repressive governments in places like Belarus, Hong Kong, and Iran. But the same encryption technology has also made them a favored communication tool for criminals and terrorist groups, including al Qaeda and the Islamic State.

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