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๐ฆ ๊ณต๋ฃก์ด ๋์!
python_re_study...1 ๋ณธ๋ฌธ
- ๋ฌธ์์ด ์๋ฃํ
- formatํจ์
"I eat {0} apples".format(3) 'I eat 3 apples'
- f๋ฌธ์์ด ํฌ๋งคํ
>>> name = 'ํ๊ธธ๋' >>> age = 30 >>> f'๋์ ์ด๋ฆ์ {name}์ ๋๋ค. ๋์ด๋ {age}์ ๋๋ค.' '๋์ ์ด๋ฆ์ ํ๊ธธ๋์ ๋๋ค. ๋์ด๋ 30์ ๋๋ค.'
- ์ด์ค์ผ์ดํ ์ฝ๋์ฝ๋์ค๋ช
\n ๋ฌธ์์ด ์์์ ์ค์ ๋ฐ๊ฟ ๋ ์ฌ์ฉ \t ๋ฌธ์์ด ์ฌ์ด์ ํญ ๊ฐ๊ฒฉ์ ์ค ๋ ์ฌ์ฉ \\ ๋ฌธ์ \๋ฅผ ๊ทธ๋๋ก ํํํ ๋ ์ฌ์ฉ \' ์์๋ฐ์ดํ(')๋ฅผ ๊ทธ๋๋ก ํํํ ๋ ์ฌ์ฉ \" ํฐ๋ฐ์ดํ(")๋ฅผ ๊ทธ๋๋ก ํํํ ๋ ์ฌ์ฉ \r ์บ๋ฆฌ์ง ๋ฆฌํด(์ค ๋ฐ๊ฟ ๋ฌธ์, ํ์ฌ ์ปค์๋ฅผ ๊ฐ์ฅ ์์ผ๋ก ์ด๋) \f ํผ ํผ๋(์ค ๋ฐ๊ฟ ๋ฌธ์, ํ์ฌ ์ปค์๋ฅผ ๋ค์ ์ค๋ก ์ด๋) \a ๋ฒจ ์๋ฆฌ(์ถ๋ ฅํ ๋ PC ์คํผ์ปค์์ '์' ์๋ฆฌ๊ฐ ๋๋ค) \b ๋ฐฑ ์คํ์ด์ค \000 ๋ ๋ฌธ์
- ๋ฌธ์์ด ๊ด๋ จ ํจ์
- count('x')
- x๋ฌธ์ ์ธ๊ธฐ
- find('x')
- ์์น ์๋ ค์ฃผ๊ธฐ
- index('x')
- ",".join('abcd') / ",".join(['a','b','c','d'])
- ๊ฐ ์ฌ์ด ,์ฐ๊ธฐ
- .upper()
- .lower()
- lstrip() rstrip()
- ์ผ์ชฝ๊ณต๋ฐฑ / ์ค๋ฅธ์ชฝ ๊ณต๋ฐฑ ์ง์ฐ๊ธฐ
- a.replace("B","b")
- B๋ฅผ b๋ก ๋์ฒด
- a.split() a.split(:)
- ๊ณต๋ฐฑ์ผ๋ก ๋๋๊ณ :๊ธฐ์ค์ผ๋ก ๋๋๋ค.
- ๋ฆฌ์คํธ ๊ด๋ จ ํจ์
- append
- ์ถ๊ฐ
- sort
- ์ ๋ฆฌ
- reverse
- ๋ค์ง๊ธฐ
- index(x)
- ๋งค๊ฐ๋ณ์ x ์ธ๋ฑ์ค ๊ฐ ํ์ธ
- insert(a,b)
- a์๋ฆฌ์ b์ฝ์
- remove(x)
- ์ฒซ๋ฒ์งธ๋ก ๋์ค๋ x๊ฐ ์ญ์
- pop()
- ๋งจ ๋ง์ง๋ง ์์ ๋ฐํํ๊ณ ๋ฆฌ์คํธ์์๋ ์ญ์
- count(x)
- x๊ฐ ์นด์ดํธ ํ ๊ฐฏ์ ๋ฐํ
- extend([4,5])
- 4,5๋ฅผ ๋ฆฌ์คํธ์ ์ถ๊ฐ ๋ณ์๋ ๊ฐ๋ฅ a+=[4,5]๋ ๊ฐ๋ฅ
- ํํ
- ์ญ์ del a[0]
- ๋ณ๊ฒฝ a[0] ='v'
- a*3 ⇒ (1,2,3,1,2,3,1,2,3)
- len(a)⇒3
- a=() a=1,2,3
- ๋์
๋๋ฆฌ
- ์ถ๊ฐ
a[2] = 'b' >>> a {1: 'a', 2: 'b'}
- ์ญ์ del a[1]
- a['a'] ⇒ [1,2,3]
- a.keys() ⇒ dict_keys(['1', '2'])
a = {'name': 'pey', 'phone': '0119993323', 'birth': '1118'}
>>> for k in a.keys():
print(k)
name
phone
birth
>>> list(a.keys())
['name', 'phone', 'birth']
>>> a.values()
dict_values(['pey', '0119993323', '1118'])
>>> a.items()
dict_items([('name', 'pey'), ('phone', '0119993323'), ('birth', '1118')])
- a.clear()
>>> a.get('phone')
'0119993323'
>>> 'name' in a
True
>>> 'email' in a
False
- a = { 'a': [1,2,3]}
- set
- set ⇒ list
>>> l1 = list(s1) >>> l1 [1, 2, 3]
- set ⇒ tuple
>>> t1 = tuple(s1) >>> t1 (1, 2, 3)
- ๊ต์งํฉ
>>> s1 = set([1, 2, 3, 4, 5, 6]) >>> s2 = set([4, 5, 6, 7, 8, 9]) >>> s1 & s2 {4, 5, 6} >>> s1.intersection(s2) {4, 5, 6}
- ํฉ์งํฉ
>>> s1 | s2 {1, 2, 3, 4, 5, 6, 7, 8, 9} >>> s1.union(s2) {1, 2, 3, 4, 5, 6, 7, 8, 9}
- ์ฐจ์งํฉ
>>> s1 - s2 {1, 2, 3} >>> s2 - s1 {8, 9, 7} >>> s1.difference(s2) {1, 2, 3} >>> s2.difference(s1) {8, 9, 7}
- ์ถ๊ฐ 1๊ฐ
>>> s1 = set([1, 2, 3]) >>> s1.add(4) >>> s1 {1, 2, 3, 4}
- ์ถ๊ฐ ์ฌ๋ฌ๊ฐ
>>> s1 = set([1, 2, 3]) >>> s1.update([4, 5, 6]) >>> s1 {1, 2, 3, 4, 5, 6}
- ์ ๊ฑฐํ๊ธฐ
>>> s1 = set([1, 2, 3]) >>> s1.remove(2) >>> s1 {1, 3}
- >>> s1 = set([1,2,3]) >>> s1 {1, 2, 3} >>> s2 = set("Hello") >>> s2 {'e', 'H', 'l', 'o'}
- ๋ณ์
b = a[:]
b = copy(a)
b = a.copy()
์ด๊ฒฝ์ฐ ์๋ก ๋ค๋ฅธ ๊ฐ์ฒด์
a, b = ('python', 'life')
(a, b) = 'python', 'life'
[a,b] = ['python', 'life']
a = b = 'python'
a, b = ('python', 'life')
(a, b) = 'python', 'life'
[a,b] = ['python', 'life']
a = b = 'python'
์ฐธ๊ณ : https://wikidocs.net/book/1
์ ํ ํฌ ํ์ด์ฌ
** ์ ํ ํฌ ํ์ด์ฌ ์คํ๋ผ์ธ ์ฑ (๊ฐ์ ํ) ์ถ๊ฐ !! (2019.06) ** * [์ฑ ๊ตฌ์ ์๋ด](https://wikidocs.net/4321) ์ด ์ฑ ์ ํ์ด์ฌ ...
wikidocs.net
๋ฐ์ํ
'Development > Python' ์นดํ ๊ณ ๋ฆฌ์ ๋ค๋ฅธ ๊ธ
python_re_study...4 (0) | 2021.12.18 |
---|---|
python_re_study...3 (0) | 2021.12.17 |
python_re_study...2 (0) | 2021.12.15 |
Python Library(os) (0) | 2021.12.07 |
Pythonic Code (0) | 2021.12.01 |
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