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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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🐍 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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Python tests Telegram | DID YOU KNOW?

Date: |

NEWS: Telegram supports Facetime video calls NOW!

Secure video calling is in high demand. As an alternative to Zoom, many people are using end-to-end encrypted apps such as WhatsApp, FaceTime or Signal to speak to friends and family face-to-face since coronavirus lockdowns started to take place across the world. There’s another optionβ€”secure communications app Telegram just added video calling to its feature set, available on both iOS and Android. The new feature is also super secureβ€”like Signal and WhatsApp and unlike Zoom (yet), video calls will be end-to-end encrypted.

Why Telegram?

Telegram has no known backdoors and, even though it is come in for criticism for using proprietary encryption methods instead of open-source ones, those have yet to be compromised. While no messaging app can guarantee a 100% impermeable defense against determined attackers, Telegram is vulnerabilities are few and either theoretical or based on spoof files fooling users into actively enabling an attack.

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