[Python] ๋ฌธ์ž์—ด

2024. 9. 11. 00:36ยท๐Ÿ“Language/โž• Python
๋ฐ˜์‘ํ˜•

input

str1 = input()

 


๋ฌธ์ž์—ด

๋ณ€ํ˜•

str1 = 'Hello'
str2 = ' Python'

# ํ•ฉ์น˜๊ธฐ => 'Hello Python'
str1 + str2

# ๊ธธ์ด ๊ตฌํ•˜๊ธฐ => 5
len(str1)

# ์•ž๋’ค ๊ณต๋ฐฑ ์ œ๊ฑฐํ•˜๊ธฐ => 'Python'
str2.strip()

# ๋Œ€๋ฌธ์ž๋กœ ๋ณ€ํ™˜ => 'HELLO'
st1.upper()

# ์†Œ๋ฌธ์ž๋กœ ๋ณ€ํ™˜ => 'hello'
str1.lower()

# ๋Œ€์†Œ๋ฌธ์ž ์„œ๋กœ ๋Œ€์น˜ ๋ณ€ํ™˜ => 'hELLO'
strq.swapcase()

 

 

ํƒ€์ž… ๋ณ€ํ™˜

str1 = 'Hello Python'
str2 = '100'
arr = ['Hello', 'Python']

# ์ •์ˆ˜๋กœ ๋ณ€ํ™˜ํ•˜๊ธฐ => 100
int(str2)

# list๋กœ ๋ณ€ํ™˜ํ•˜๊ธฐ (๊ณต๋ฐฑ๊ธฐ์ค€) => ['Hello', 'Python']
str1.split(' ')

# ํŠœํ”Œ๋กœ ๋ณ€ํ™˜ํ•˜๊ธฐ => ('Hello', 'Python')
tuple(str1.split(' '))

# list๋ฅผ ๋ฌธ์ž์—ด๋กœ ๋ณ€ํ™˜ํ•˜๊ธฐ => 'Hello Python'
' '.join(arr)

 

join()๋ฉ”์„œ๋“œ:

๋ฌธ์ž์—ด์„ ์—ฐ๊ฒฐํ•˜๋Š” ๋ฐ ์‚ฌ์šฉ๋˜๋Š” ํŒŒ์ด์ฌ์˜ ๋ฌธ์ž์—ด ๋ฉ”์„œ๋“œ

์ฃผ๋กœ iterable(๋ฆฌ์ŠคํŠธ, ํŠœํ”Œ ๋“ฑ) ์•ˆ์˜ ๋ฌธ์ž์—ด๋“ค์„ ํ•˜๋‚˜์˜ ๋ฌธ์ž์—ด๋กœ ํ•ฉ์น˜๊ธฐ ์œ„ํ•ด ์‚ฌ์šฉ

 

 

 

์ž๋ฅด๊ธฐ

string[start:stop:step]

start ์ƒ๋žต์‹œ : stpe์ด ์–‘์ˆ˜๋ผ๋ฉด ์ฒซ๋ฒˆ์งธ ์ธ๋ฑ์Šค, ์Œ์ˆ˜๋ผ๋ฉด ๋งˆ์ง€๋ง‰ ์ธ๋ฑ์Šค

strop ์ƒ๋žต์‹œ : step์ด ์–‘์ˆ˜๋ผ๋ฉด ๋งˆ์ง€๋ง‰ ์ธ๋ฑ์Šค, ์Œ์ˆ˜๋ผ๋ฉด ์ฒซ๋ฒˆ์งธ ์ธ๋ฑ์Šค

step ์ƒ๋žต์‹œ : 1

str1 = 'Hello'
num1 = 1
num2 = 3

# ์ฒซ๊ธ€์ž => 'H'
str1[0]

# ์ฒ˜์Œ๋ถ€ํ„ฐ ํŠน์ • ์œ„์น˜๊นŒ์ง€ => 'He'
str1[:num1]

# ํŠน์ • ์œ„์น˜๋ถ€ํ„ฐ ๋งˆ์ง€๋ง‰๊นŒ์ง€ => 'llo'
str1[num1:]

# ํŠน์ • ์œ„์น˜๋ถ€ํ„ฐ ํŠน์ • ์œ„์น˜๊นŒ์ง€ => 'll'
str1[num1:num2]

# ๋ฌธ์ž์—ด ๋’ค์ง‘๊ธฐ => 'olleH'
str1[::-1]

 

 


f-string

str1 = '์•ˆ๋…•';
str2 = 'ํ•˜์„ธ์š”';

print(f'{str1}{str2}') #์•ˆ๋…•ํ•˜์„ธ์š”
๋ฐ˜์‘ํ˜•
์ €์ž‘์žํ‘œ์‹œ (์ƒˆ์ฐฝ์—ด๋ฆผ)

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