[Do it] 점프 투 파이썬 - 2장 연습문제 code

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Q 01.

 

kor = 80

eng = 75

mat = 55

 

avg = int((kor + eng + mat) / 3)

 

print("홍길동의 국어, 영어, 수학 점수의 평균은 {}점 입니다.".format(avg))

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-> 홍길동의 국어, 영어, 수학 점수의 평균은 70점 입니다.

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Q 02.

 

num = 13

 

if num % 2 :

    print("홀수입니다.")

else :

    print("짝수입니다.")

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-> 홀수입니다.

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Q 03.

 

pin = "881120-1068234"

 

yyyymmdd = pin[:6]

num = pin[7:]

print(yyyymmdd)

print(num)

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-> 881120

-> 1068234

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Q 04.

 

pin = "881120-1068234"

 

print("성별을 나타내는 숫자: {}".format(pin[7]))

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-> 성별을 나타내는 숫자: 1

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Q 05.

 

a = "a:b:c:d"

b = a.replace(':', '#')

print(b)

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-> a#b#c#d

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Q 06.

 

a = [1, 3, 5, 4 ,2]

a.sort()

a.reverse()

print(a)

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-> [5, 4, 3, 2, 1]

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Q 07.

 

a = ['Life', 'is', 'too', 'short']

result = ' '.join(a)

print(result)

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-> Life is too short

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Q 08.

 

a = (1, 2, 3)

a = a + (4,)

print(a)

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-> (1, 2, 3, 4)

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Q 09.

 

a = dict()

a[[1]] = 'python'

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-> TypeError: unhashable type: 'list'

-> # Key는 Immutable한 자료형만 가능하다.

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Q 10.

 

a = {'A':90, 'B':80, 'C':70}

result = a.pop('B')

print(a)

print(result)

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-> {'A': 90, 'C': 70}

-> 80

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Q 11.

 

a = [1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 5]

aSet = set(a)

b = list(aSet)

print(b)

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-> [1, 2, 3, 4, 5]

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Q 12.

 

a = b = [1, 2, 3]

a[1] = 4

print(b)

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-> [1, 4, 3]

-> # a = b에서 얕은 복사가 이루어져서 a 변수와 b 변수가 가리키는 객체가 하나의 메모리 주소에 저장된 리스트로 동일하기 때문이다.

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