23.01.08 학습일기

# chapter03-4 # 파이썬 튜플 # 리스트와 비교 중요 # 튜플 자료형(순서o, 중복o, 수정x, 삭제x) # 불변 # 선언 a = () b = (1,) c = (11, 12, 13, 14) d = (100, 1000, 'Ace', 'Base', 'Captine') e = (100, 1000, ('Ace', 'Base', 'Captine')) # 인덱싱 print('>>>>>') print('d - ', d[1]) print('d - ', d[0] + d[1] + d[1]) print('d - ', d[-1]) print('d - ', e[-1][1]) print('d - ', list(e[-1][1])) # 수정이 진짜 안될까? # d[0] = 1500 # Exception has occurred: TypeError # 'tuple' object does not support item assignment # File "C:\Users\hanback chae\Desktop\python_basic\chapter03_04.py", line 24, in # d[0] = 1500 # 슬라이싱 print('>>>>>') print('d -', d[0:3]) print('d -', d[2:]) print('d -', e[2][1:3]) print('d -', e[2][0:3]) print('d -', e[2][0:2]) # 튜플 연산 print('>>>>>') print('c + d', c + d) print('c * 3', c * 3) # 튜플 함수 a = (5, 2, 3, 1, 4) print('a - ', a) print('a - ', a.index(3)) print('a - ', a.count(2)) # 팩킹 & 언팩킹(Packing, and Unpacking) # 팩킹 t = ('foo', 'bar', 'baz', 'qux') print(t) print(t[0]) print(t[-1]) # 언팩킹1 (x1, x2, x3, x4) = t print(type(x1), type(x2), type(x3), type(x4)) print(x1, x2, x3, x4) print() # 팩킹 & 언팩킹 t2 = 1, 2, 3 t3 = 4, x1, x2, x3 = t2 x4, x5, x6 = 4, 5, 6 print(t2) print(t3) print(x1, x2, x3) print(x4, x5, x6)