[boostcourse] PY4E 4.ν•¨μˆ˜πŸ”’

yongseokΒ·2022λ…„ 9μ›” 17일
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λΆ€μŠ€νŠΈμ½”μŠ€ μ½”μΉ­μŠ€ν„°λ”” λͺ¨λ‘λ₯Ό μœ„ν•œ 파이썬(PY4E)λ₯Ό ν†΅ν•΄μ„œ Python을 ν•™μŠ΅ν•œ κ°œλ…μ„ μ •λ¦¬ν•˜κ³  좔가적인 λ³΅μŠ΅μ„ μœ„ν•œ λ¬Έμ œν’€μ΄ ν¬μŠ€νŒ…μž…λ‹ˆλ‹€.

PY4Eλž€?

Charles R. Severance κ΅μˆ˜λ‹˜μ˜ Python for Everybody 'λͺ¨λ‘λ₯Ό μœ„ν•œ 파이썬' μ΄λž€ κ°•μ˜μ΄λ‹€.(링크)

넀이버 컀λ„₯νŠΈμž¬λ‹¨μ˜ λΆ€μŠ€νŠΈμ½”μŠ€ λͺ¨λ‘λ₯Ό μœ„ν•œ 파이썬 (PY4E)λ₯Ό ν†΅ν•΄μ„œ κ°•μ˜λ₯Ό μˆ˜κ°•ν•  수 μžˆμŠ΅λ‹ˆλ‹€.



ν•¨μˆ˜(Function)

  • ν•¨μˆ˜(function): 톡상 인자λ₯Ό ”받아” κ²°κ³Όλ₯Ό β€λ°˜ν™˜β€ν•˜μ§€λ§Œ λ°˜ν™˜μ΄ μ—†λŠ” 경우 있음
  • λ‚΄μž₯ ν•¨μˆ˜(Built-in): ν•¨μˆ˜λ₯Ό μ •μ˜ν•  ν•„μš”μ—†μ΄ μ‚¬μš©ν•  수 μžˆλŠ” ν•¨μˆ˜λ‘œ 사전에 점유된 μ˜ˆμ•½μ–΄λ‘œ μ·¨κΈ‰
    • λ‚œμˆ˜(Randomnumbers)
    • μˆ˜ν•™ν•¨μˆ˜
  • λ§€κ°œλ³€μˆ˜(Parameter): 인자둜 μ „λ‹¬λœ 값을 μ°Έμ‘°ν•˜κΈ° μœ„ν•΄ ν•¨μˆ˜ 내뢀에 μ‚¬μš©λ˜λŠ” 이름
  • 인수(Argument): ν•¨μˆ˜ ν˜ΈμΆœμ‹œ ν•¨μˆ˜μ— μ œκ³΅λ˜λŠ” κ°’. ν•¨μˆ˜ 내뢀에 μƒμ‘ν•˜λŠ” 맀개 λ³€μˆ˜μ— λŒ€μž…
  • κ²°κ³ΌμžˆλŠ” ν•¨μˆ˜(fruitful functions): κ²°κ³Όλ₯Ό λ§Œλ“€μ–΄ λ‚΄λŠ” ν•¨μˆ˜
    • λ°˜ν™˜κ°’(Return Value)

      def addtwo(a, b):
      	added = a + b
      	return added
      
      x = addtwo(3, 5) 
      print (x)
  • 빈 ν•¨μˆ˜(void functions): κ²°κ³Όλ₯Ό λ§Œλ“€μ–΄ 내지 μ•ŠλŠ” ν•¨μˆ˜
    def addtwo(a, b):
    	added = a + b
    	print(added)
    
    x = addtwo(3, 5)

μ—°μŠ΅λ¬Έμ œ

  1. 문제
    μ—°μŠ΅λ¬Έμ œ

  2. 풀이 μ „ κ³„νšκ³Ό 생각

    • μž¬κ·€λ₯Ό ν†΅ν•΄μ„œ 였λ₯˜μ— λŒ€ν•œ μž¬μž…λ ₯ μš”μ²­ κ°€λŠ₯
    • 계산을 ν•¨μˆ˜λ₯Ό ν†΅ν•΄μ„œ κ°„λ‹¨ν•˜κ²Œ ν‘œν˜„κ°€λŠ₯
  3. 풀이

    def enter():
    	try:
    		hours = float(input('근무 μ‹œκ°„μ„ μž…λ ₯ν•΄ μ£Όμ„Έμš”'))
    		rate = float(input('μ‹œκΈ‰μ„ μž…λ ₯ν•΄ μ£Όμ„Έμš”'))
    		return hours, rate
    	except:
    		print('근무 μ‹œκ°„κ³Ό μ‹œκΈ‰μ— 숫자λ₯Ό μž…λ ₯ν•΄ μ£Όμ„Έμš”')
    		return enter()
    
    def pay(hours, rate):
    		if hours > 40:
    			hours = 40 + (hours - 40) * 1.5
    		pay = hours * rate
    		return pay
      
    hours, rate = enter()
    print("Pay: ", pay(hours, rate))

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