function

μ‚¬μš©λ²•

def ν•¨μˆ˜μ΄λ¦„(): 
    λ¬Έμž₯

기본적인 ν•¨μˆ˜

def print_3_times():
    print("μ•ˆλ…•ν•˜μ„Έμš”")
    print("μ•ˆλ…•ν•˜μ„Έμš”")
    print("μ•ˆλ…•ν•˜μ„Έμš”")
print_3_times()

ν‚€μ›Œλ“œ λ§€κ°œλ³€μˆ˜

# κ°€λ³€ λ§€κ°œλ³€μˆ˜κ°€ κΈ°λ³Έ λ§€κ°œλ³€μˆ˜λ³΄λ‹€ μ•žμ— 올 λ•Œ 
def print_n_times( *values, n=2):     
    for i in range(n):             
        for value in values:
            print(value)          
        print()
print_n_times("μ•ˆλ…•ν•˜μ„Έμš”", "즐거운", "파이썬 ν”„λ‘œκ·Έλž˜λ°", 3)

# κΈ°λ³Έ λ§€κ°œλ³€μˆ˜κ°€ κ°€λ³€ λ§€κ°œλ³€μˆ˜λ³΄λ‹€ μ•žμ— 올 λ•Œ (errorκ°€ λ°œμƒ)
def print_n_times(n=2, *values):     
    for i in range(n):             
        for value in values:
            print(value)          
        print()
print_n_times("μ•ˆλ…•ν•˜μ„Έμš”", "즐거운", "파이썬 ν”„λ‘œκ·Έλž˜λ°")

ν‚€μ›Œλ“œ 맀개 λ³€μˆ˜

κΈ°λ³Έ λ§€κ°œλ³€μˆ˜ μ€‘μ—μ„œ ν•„μš”ν•œ κ°’λ§Œ μž…λ ₯ν•˜κΈ°

리턴

기본적인 ν•¨μˆ˜μ˜ ν™œμš©

μ‚¬μš©λ²•

λ²”μœ„ λ‚΄λΆ€μ˜ μ •μˆ˜λ₯Ό λͺ¨λ‘ λ”ν•˜λŠ” ν•¨μˆ˜

κΈ°λ³Έ λ§€κ°œλ³€μˆ˜μ™€ ν‚€μ›Œλ“œ λ§€κ°œλ³€μˆ˜λ₯Ό ν™œμš©ν•΄ λ²”μœ„μ˜ μ •μˆ˜λ₯Ό λ”ν•˜λŠ” μ •μˆ˜

μž¬κ·€ν•¨μˆ˜

ν”Όλ³΄λ‚˜μΉ˜ μˆ˜μ—΄

  • n번째 μˆ˜μ—΄ = (n-1) 번째 μˆ˜μ—΄ + (n-2) 번째 μˆ˜μ—΄

λ©”λͺ¨ν™”

  • λ”•μ…”λ„ˆλ¦¬λ₯Ό μ‚¬μš©ν•΄μ„œ ν•œλ²ˆ κ³„μ‚°ν•œ 값을 μ§€μ •ν•˜λŠ” 것을 λ©”λͺ¨λΌκ³  ν•˜λ©°,

  • λ©”λͺ¨ν™”λ₯Ό μ‚¬μš©ν•˜λ©΄ μ‹€ν–‰ ν›„ κ³§λ°”λ‘œ κ²°κ³Όλ₯Ό 좜λ ₯ν•  μ •λ„λ‘œ 속도가 빨라진닀.

μ½”λ“œ μœ μ§€ 보수

ν•¨μˆ˜ κ³ κΈ‰

νŠœν”Œ : ν•¨μˆ˜μ™€ ν•¨κ»˜ 많이 μ‚¬μš©λ˜λŠ” λ¦¬μŠ€νŠΈμ™€ λΉ„μŠ·ν•œ μžλ£Œν˜•μœΌλ‘œ, λ¦¬μŠ€νŠΈμ™€ λ‹€λ₯Έμ μ€ ν•œλ²ˆ κ²°μ •λ˜λ©΄ μš”μ†Œλ₯Ό λ°”κΏ€ 수 μ—†λ‹€λŠ” 것 λžŒλ‹€ : 맀개 λ³€μˆ˜λ‘œ ν•¨μˆ˜λ₯Ό μ „λ‹¬ν•˜κΈ° μœ„ν•΄ ν•¨μˆ˜ ꡬ문을 μž‘μ„±ν•˜λŠ” 것이 번거둭고, μ½”λ“œ 곡간 λ‚­λΉ„λΌλŠ” 생각이 λ“€λ•Œ ν•¨μˆ˜λ₯Ό κ°„λ‹¨ν•˜κ³  μ‰½κ²Œ μ„ μ–Έν•˜λŠ” 방법

νŠœν”Œ

filter() ν•¨μˆ˜μ™€ map() ν•¨μˆ˜

ν•¨μˆ˜λ₯Ό λ§€κ°œλ³€μˆ˜λ‘œ μ „λ‹¬ν•˜λŠ” λŒ€ν‘œμ μΈ ν‘œμ€€ν•¨μˆ˜

λžŒλ‹€

lambda λ§€κ°œλ³€μˆ˜ : 리턴값

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