Welcome to Python : 문자열 자료형

• 문자열 자료형 : https://hi-code.tistory.com/110
• 리스트 자료형 : https://hi-code.tistory.com/111
• 튜플 자료형 : https://hi-code.tistory.com/112
• 딕셔너리 자료형 : https://hi-code.tistory.com/113
• 집합 자료형 : https://hi-code.tistory.com/114

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Title	Code	Console
문자열 자료형
기본 문자열 구조	"Hello World" 'Python is fun'
따옴표를 이용한 줄 바꿈	multiline = ''' Life is too short You need python ''' print(multiline)	Life is too short You need python
문자열 인덱싱	a = "Life is too short, You need python" print(a[0])	L
문자열 슬라이싱	a = "Life is too short, You need python" slice = a[0:4] print(slice)	Life
	a = "Life is too short, You need python" slice = a[:8] print(slice)	Life is
	a = "Life is too short, You need python" slice = a[5:7] print(slice)	is
문자열 포매팅	format = "I eat %d apples." % 3 print(format)	I eat 3 apples.
	format = "I eat %s apples." % "five" print(format)	I eat five apples.
문자열 정렬과 공백	print("%10s" % "hi")	'        hi'
	print("%-10sjane." % "hi")	hi        jane.
	print("%0.4f" % 3.42134234)	3.4213
	print("I eat {0} apples".format(3))	I eat 3 apples
	print("{0:<10}".format("hi"))	'hi        '
	print("{0:>10}".format("hi"))	'        hi'
	print("{0:=^10}".format("hi"))	====hi====
	y = 3.42134234 print("{0:10.4f}".format(y))	'    3.4213'
	name = '홍길동' age = 30 print(f'나의 이름은 {name}입니다. 나이는 {age}입니다.')	3.6ver 이상부터 나의 이름은 홍길동입니다. 나이는 30입니다.

Title	Code	Console
문자열 관련 함수
count	a = "hobby" print(a.count('b'))	2
find	a = "Python is the best choice" find_b = a.find('b') find_k = a.find('k') print(find_b) print(find_k)	14 -1
index	a = "Python is the best choice" find_b = a.index('b') find_k = a.index('k') print(find_b) print(find_k)	Traceback (most recent call last):   File "...Quiz.py", line 3, in <module>     find_k = a.index('k') ValueError: substring not found
find와 index의 차이	find를 사용해서 존재하지 않는 문자열을 검색되면 '-1'을 반환하지만 index는 error가 발생한다.
join	toJoin = ",".join('abcd') print(toJoin)	a,b,c,d
upper	a = "hi" print(a.upper())	HI
lower	a = "HI" print(a.lower())	hi
lstrip	a = " hi " print(a.lstrip())	'hi '
rstrip	a = " hi " print(a.rstrip())	' hi'
strip	a = " hi " print(a.strip())	'hi'
replace	a = "Life is too short" print(a.replace("Life", "Your leg"))	Your leg is too short
split	a = "Life is too short" print(a.split()) b = "a:b:c:d" print(b.split(':'))	['Life', 'is', 'too', 'short'] ['a', 'b', 'c', 'd']