tuple

νŠœν”Œ(tuple)와 리슀트(list) 비ꡐ

: λͺ‡ κ°€μ§€ 점을 μ œμ™Έν•˜λ©΄ λ¦¬μŠ€νŠΈμ™€ 거의 λΉ„μŠ·ν•˜λ‹€

  • 리슀트(list)λŠ” [ ]으둜 λ‘˜λŸ¬μ‹Έμ§€λ§Œ νŠœν”Œ(tuple)은 ( )으둜 λ‘˜λŸ¬μ‹Όλ‹€.

  • 리슀트(list)λŠ” κ·Έ κ°’μ˜ 생성, μ‚­μ œ, μˆ˜μ •μ΄ κ°€λŠ₯ν•˜μ§€λ§Œ νŠœν”Œ(tuple)은 κ·Έ 값을 λ°”κΏ€ 수 μ—†λ‹€.

  • 이처럼 ν”„λ‘œκ·Έλž¨μ΄ μ‹€ν–‰λ˜λŠ” λ™μ•ˆ κ·Έ 값이 항상 λ³€ν•˜μ§€ μ•ŠκΈ°λ₯Ό λ°”λž€λ‹€λ©΄ νŠœν”Œ(tuple)을 μ‚¬μš©ν•œλ‹€

νŠœν”Œ

t1 = () # κΈ°λ³Έ 
t2 = (1,) # λ¦¬μŠ€νŠΈμ™€ λ‹€λ₯΄κ²Œ 1개의 μš”μ†Œλ§Œ κ°€μ§ˆλ•ŒλŠ” 콀마(,)λ₯Ό λ°˜λ“œμ‹œ λΆ™μ—¬μ•Ό ν•œλ‹€
t3 = (1, 2, 3)
t4 = 1, 2, 3 # κ΄„ν˜Έ()λ₯Ό μƒλž΅ν•΄λ„ λ¬΄λ°©ν•˜λ‹€ 
t5 = ('a', 'b', ('ab', 'cd'))

νŠœν”Œμ˜ μ‚­μ œμ™€ λ³€κ²½ : error λ°œμƒ

  • νŠœν”Œ(tuple)은 μš”μ†Ÿκ°’μ„ μ‚­μ œ 및 λ³€κ²½ν•˜λ©΄ errorκ°€ λ°œμƒν•œλ‹€

    ```python

    t1 = (1, 2, 'a', 'b')

    del t1[0]

Traceback (most recent call last): File "", line 1, in TypeError: 'tuple' object doesn't support item deletion

```python
t1 = (1, 2, 'a', 'b')
t1[0] = 'c'

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'tuple' object does not support item assignment

νŠœν”Œ 닀루기

  • 인덱싱

    t1 = (1, 2, 'a', 'b')
    print(t1[0]) # 1
  • μŠ¬λΌμ΄μ‹±

    t1 = (1, 2, 'a', 'b')
    print(t1[1:]) # (2, 'a', 'b')
  • λ”ν•˜κΈ°

    t1 = (1, 2, 'a', 'b')
    t2 = (3, 4)
    print(t1 + t2) # (1, 2, 'a', 'b', 3, 4)
  • κ³±ν•˜κΈ°

    t2 = (3, 4)
    print(t2 * 3) # (3, 4, 3, 4, 3, 4)
  • 길이 κ΅¬ν•˜κΈ°

    t1 = (1, 2, 'a', 'b')
    print(len(t1)) # 4

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