[ํŒŒ์ด์ฌ] ๋ฆฌ์ŠคํŠธ๋ฅผ ๋ฌธ์ž์—ด๋กœ - join

2022. 8. 1. 04:52ยท๐Ÿ“œ Language/[python]

์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ฌธ์ œ๋ฅผ ํ’€๊ณ  ์ •๋‹ต์„ ์ถœ๋ ฅํ• ๋•Œ ์ž์ฃผ ์‚ฌ์šฉํ•˜๋Š” joinํ•จ์ˆ˜.

์•Œ์•„๋‘๋ฉด ์œ ์šฉํ•˜๋‹ค.


arr1 = ['a', 'b', 'c', 'd']
print(', '.join(arr1))

์ถœ๋ ฅ ๊ฒฐ๊ณผ: a, b, c, d

join์€ ๊ธฐ๋ณธ์ ์œผ๋กœ '๊ตฌ๋ถ„์ž'.join(๋ฆฌ์ŠคํŠธ) ํ˜•ํƒœ๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋‹ค.

 

str1 = ''.join(arr1)
print(str1)

์ถœ๋ ฅ๊ฒฐ๊ณผ: abcd

joinํ•จ์ˆ˜๋Š” ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•ด์ค€๋‹ค.

 

a = ['is', 'you', 'down']
print('_'.join(a))
print(' '.join(a))

์ถœ๋ ฅ๊ฒฐ๊ณผ:
is_you_down
is you down

์ด๋Ÿฐ์‹์œผ๋กœ ์‚ฌ์šฉ ๊ฐ€๋Šฅ

 

arr2 = [1, 2, 3 ,4]
print(', '.join(map(str,arr2)))

์ถœ๋ ฅ๊ฒฐ๊ณผ:
1, 2, 3, 4

joinํ•จ์ˆ˜๋Š” ๊ธฐ๋ณธ์ ์œผ๋กœ ๋ฌธ์ž์—ด๋กœ ์ด๋ฃจ์–ด์ง„ ๋ฆฌ์ŠคํŠธ๋งŒ ๊ฐ€๋Šฅํ•˜๋ฏ€๋กœ

int๋ฆฌ์ŠคํŠธ๋Š” map์„ ์‚ฌ์šฉํ•ด์„œ ํ•ด๊ฒฐํ•ด์ค€๋‹ค.

 

arr2 = [1, 2, 3 ,4]
print("<%s>" %(', '.join(map(str,arr2))))

์ถœ๋ ฅ๊ฒฐ๊ณผ:
<1, 2, 3, 4>

์‘์šฉ

์ €์ž‘์žํ‘œ์‹œ (์ƒˆ์ฐฝ์—ด๋ฆผ)

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[ํŒŒ์ด์ฌ] ๋ฆฌ์ŠคํŠธ๋ฅผ ๋ฌธ์ž์—ด๋กœ - join
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