์ง‘ํ•ฉ 1
[Python] ์ž๋ฃŒํ˜• - ์ง‘ํ•ฉ Set

0. ์ง‘ํ•ฉ Set ์ด๋ž€? ์ง‘ํ•ฉ์— ๊ด€๋ จ๋œ ๊ฒƒ์„ ์‰ฝ๊ฒŒ ์ฒ˜๋ฆฌํ•˜๊ธฐ ์œ„ํ•ด ๋งŒ๋“  ์ž๋ฃŒํ˜• ์ค‘๋ณต์„ ํ—ˆ์šฉํ•˜์ง€ ์•Š์œผ๋ฉฐ ์ˆœ์„œ๊ฐ€ ์—†๋‹ค ์ง‘ํ•ฉ์˜ ์›์†Œ๋กœ ๋‹ค์–‘ํ•œ ๊ฐ’์„ ๊ฐ€์งˆ ์ˆ˜ ์žˆ์ง€๋งŒ ๊ฐ’์„ ๋ฐ”๊ฟ€ ์ˆ˜ ์—†๊ธฐ ๋•Œ๋ฌธ์— ๋ฆฌ์ŠคํŠธ, ๋”•์…”๋„ˆ๋ฆฌ, ์ง‘ํ•ฉ์€ ์š”์†Œ๋กœ ๊ฐ€์งˆ ์ˆ˜ ์—†๋‹ค ( set ์ƒ์„ฑ์ž ์•ˆ์— ๋ฆฌ์ŠคํŠธ๋ฅผ ๋„ฃ์œผ๋ฉด ๋ฆฌ์ŠคํŠธ ์•ˆ์˜ ์›์†Œ๊ฐ€ ์ง‘ํ•ฉ์˜ ์›์†Œ๊ฐ€ ๋œ๋‹ค ) ์ค‘๊ด„ํ˜ธ๋ฅผ ์“ฐ๋Š” ๊ฒƒ์ด ๋”•์…”๋„ˆ๋ฆฌ๋ž‘ ๋น„์Šทํ•˜์ง€๋งŒ key๊ฐ’์ด ์—†์ด ๊ฐ’๋งŒ ์กด์žฌํ•œ๋‹ค # ์ง‘ํ•ฉ๋ช… = {์š”์†Œ1, ์š”์†Œ2, ์š”์†Œ3, …} # SetName = {1, 2, 3} a = set() b = {1, 2, 3} c = {1, 'hi', (2, 5)} print(c) # {1, (2, 5), 'hi'} d = {[1, 2, 3, 4]} # ์˜ค๋ฅ˜ TypeError: unhashable type: 'list' ..
ํ”„๋กœ๊ทธ๋ž˜๋ฐ ์–ธ์–ด/Python 2021.02.04
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