Python

ํŒŒ์ด์ฌ ๊ธฐ์ดˆ ๋ณต์Šต

byeol_dev 2023. 5. 3. 15:26

tab ๋ˆ„๋ฅด๋ฉด ์ž๋™์™„์„ฑ ๋ชฉ๋ก ์—ด๋ฆผ.

ํŒŒ์ด์ฌ์€ ์ถœ๋ ฅ๋ฌธ ์ƒ๋žต ๊ฐ€๋Šฅ

#pirnt๋ฌธ ์•ˆ ์จ๋„ ์ถœ๋ ฅ๋จ, but ๊ฐ€์žฅ ๋งˆ์ง€๋ง‰ ๊ฒƒ๋งŒ ํ•ด๋‹น
1 + 4
10

#ํŒŒ์ด์ฌ์€ ๋ณ€์ˆ˜ ์ƒ์„ฑ ์‹œ ์ž๋ฃŒํ˜• ์•ˆ ๋„ฃ์Œ.
num1 = 10
num1

 

๋ฌธ์ž + ์ˆซ์ž ์—ฐ๊ฒฐ ์ถœ๋ ฅ

+ ๊ธฐํ˜ธ๋กœ ๋ฌธ์ž์™€ ์ˆซ์ž ์—ฐ๊ฒฐ ๋ถˆ๊ฐ€ํ•จ > ์˜ค๋ฅ˜

, ๋กœ ๋ฌธ์ž / ์ˆซ์ž ์—ฐ๊ฒฐ ๊ฐ€๋Šฅ!

print('hello~' + 'python')
#๋ฌธ์ž + ์ˆซ์ž ๋ถˆ๊ฐ€
#print('hello' + 10)
print('hello', 'python')
print('hello', 10)

#end='' ๋ถ™์ด๋ฉด ๊ฐœํ–‰ ์•ˆ ๋˜๊ณ  ๋ฐ”๋กœ ๋’ค์— ๋ถ™์Œ. end๋ผ๋Š” ๋งค๊ฐœ๋ณ€์ˆ˜์— ์›ํ•˜๋Š” ์–ด๋–ค ๊ฐ’์„ ๋„ฃ๋Š” ๊ฒƒ์ž„.
print('hello', end=' ')
print('hello hi', end=' ')

 

๋ฌธ์ž + ๋ณ€์ˆ˜ ์ถœ๋ ฅ๋ฌธ

f(ํฌ๋งทํ•จ์ˆ˜ ์‚ฌ์šฉ)

myName = 'ํ™๊ธธ๋™'
myAge = 20
print('๋‚ด ์ด๋ฆ„์€' , myName, '์ด๊ณ , ๋‚˜์ด๋Š” ' , myAge, '์ž…๋‹ˆ๋‹ค.')
#๋ฌธ์ž์™€ ๋ณ€์ˆ˜๋ฅผ ํ•จ๊ป˜ ์“ธ ๋•Œ๋Š” f(ํฌ๋งทํ•จ์ˆ˜) ๊ฐ™์ด ์“ฐ๋ฉด ๊ฐ„๋‹จ.
print(f'๋‚ด ์ด๋ฆ„์€ {myName}์ด๊ณ , ๋‚˜์ด๋Š” {myAge}์ž…๋‹ˆ๋‹ค.')

 

๋ณ€์ˆ˜์˜ ์ž๋ฃŒํ˜•

#๊ฐœ๋ฐœ์ž๊ฐ€ ์ž๋ฃŒํ˜•์„ ์ •ํ•˜์ง€ ์•Š๋Š” ๊ฒƒ, ์‹œ์Šคํ…œ์ด ์ž๋™ ๋ถ€์—ฌ
name1 = '๊น€์ž๋ฐ”'
age1 = 30
type(age1)

 

๋ฐ์ดํ„ฐ ์ž…๋ ฅ

addr = input('์ฃผ์†Œ๋ฅผ ์ž…๋ ฅํ•˜์‹ญ์‹œ์˜ค.')
print(addr)

์ž…๋ ฅ ๋ฐ›์€ ๋ฐ์ดํ„ฐ๋Š” ๋””ํดํŠธ๊ฐ€ ๋ฌธ์ž์ด๊ธฐ ๋•Œ๋ฌธ์— int๋กœ ๋ฐ”๊ฟ”์ค˜์•ผ ํ•จ.

int(์ž๋ฃŒํ˜• ๋ณ€ํ™˜ ๋ฐ์ดํ„ฐ) ํ˜•์‹์œผ๋กœ ์‚ฌ์šฉ.

korScore = int(input('๊ตญ์–ด ์ ์ˆ˜ ์ž…๋ ฅ'))
engScore = int(input('์˜์–ด ์ ์ˆ˜ ์ž…๋ ฅ'))
print(f'์ด์ ์€ {korScore + engScore}์ž…๋‹ˆ๋‹ค.')

 

if๋ฌธ

# ๊ฐ™๋‹ค : == (์ˆซ์ž, ๋ฌธ์ž ๋‘˜ ๋‹ค)
# ๋‹ค๋ฅด๋‹ค : !=
# ๊ทธ๋ฆฌ๊ณ  : and
# ๊ทธ๋Ÿฌ๋‚˜ : or

#if๋ฌธ - ๋“ค์—ฌ์“ฐ๊ธฐ๋กœ ์˜์—ญ ํŒ๋‹จ!!
score = 87

if score >= 90 : 
    print('์šฐ์ˆ˜์ž')
elif score >= 80 :
    print('๋ณดํ†ต')
else :
    print('๋ฏธ๋‹ฌ')

 

ํŒŒ์ด์ฌ ์—ฐ์‚ฐ์ž

print(10/3)
#์—ฐ์‚ฐ์ž // ๋ชซ๋งŒ ๋‚˜์˜ด
print(10//3)
print(10%3)
#์ œ๊ณฑ์—ฐ์‚ฐ์ž
print(2**3)

 

ํŒŒ์ด์ฌ ๋ฆฌ์ŠคํŠธ

#๋ฆฌ์ŠคํŠธ
#๋นˆ ๋ฆฌ์ŠคํŠธ ์ƒ์„ฑ
nameList = []
type(nameList)

๋ฆฌ์ŠคํŠธ ๋ฐ์ดํ„ฐ ๋ฝ‘๊ธฐ

nameList = ['ํ™๊ธธ๋™', '1', '1.0']
print(nameList)

ํŠน์ • ๋ฐ์ดํ„ฐ ์ถœ๋ ฅ

#ํŠน์ • ๋ฐ์ดํ„ฐ๋งŒ ์ถœ๋ ฅ
print(nameList[0])
#์Šฌ๋ผ์ด์‹ฑ์—ฐ์‚ฐ (0๋ถ€ํ„ฐ 2์ „๊นŒ์ง€ 0์€ ์ƒ๋žต ๊ฐ€๋Šฅ)
print(nameList[:2])
print(nameList[1:]) #์‹œ์ž‘์‹œ์ ๋ถ€ํ„ฐ ๋งˆ์ง€๋ง‰๊นŒ์ง€
print(nameList[1:-1]) # -๋กœ ๋“ค์–ด์˜ค๋Š” ๊ฑด ๋’ค๋ถ€ํ„ฐ

๋ฆฌ์ŠคํŠธ ํŠน์ • ๋ฌธ์ž์—ด ์ถœ๋ ฅ(์Šฌ๋ผ์ด์‹ฑ ๊ฐ€๋Šฅ)

#๋ฌธ์ž์—ด๋„ ์Šฌ๋ผ์ด์‹ฑ ๊ฐ€๋Šฅ
addr1 = '์šธ์‚ฐ์‹œ ๋‚จ๊ตฌ 1577-2222'
addr2 = '์šธ์‚ฐ์‹œ ๋‚จ๊ตฌ ๋‹ฌ๋™ 123-4567'
addr3 = '์šธ์‚ฐ์‹œ ๋‚จ๊ตฌ ์‹ ์ •๋™ 1577-4444'

print(addr1[0:-9])
print(addr2[0:-9])
print(addr3[0:-9])
print(addr1[-9:])

 

๋ฆฌ์ŠคํŠธ์— ๋ฐ์ดํ„ฐ ์ถ”๊ฐ€

#๋ฆฌ์ŠคํŠธ์— ๋ฐ์ดํ„ฐ ์ถ”๊ฐ€
fruitList = []
# append : ๋ฆฌ์ŠคํŠธ์˜ ๊ฐ€์žฅ ๋งˆ์ง€๋ง‰ ์ธ๋ฑ์Šค์— ๋ฐ์ดํ„ฐ ์ถ”๊ฐ€
fruitList.append('์‚ฌ๊ณผ')
fruitList.append('์˜ค๋ Œ์ง€')
print(fruitList)
# insert : ๋ฆฌ์ŠคํŠธ์˜ ๋ช‡๋ฒˆ์งธ ์ž๋ฆฌ์— ๋ฐ์ดํ„ฐ ์ถ”๊ฐ€ ์ง€์ • ๊ฐ€๋Šฅ
fruitList.insert(1, '๋ฐ”๋‚˜๋‚˜')
print(fruitList)

#๋ฆฌ์ŠคํŠธ ์ „์ฒด ๋ฐ˜๋ณต
print(fruitList * 2)
#fruitList = fruitList * 2  ์‹ค์ œ ๋ฆฌ์ŠคํŠธ์— ๋ฆฌ์ŠคํŠธ ์š”์†Œ๋ฅผ ๋ฐ˜๋ณตํ•ด์„œ ๋„ฃ์„ ๋•Œ ์ฝ”๋“œ
#๋ฆฌ์ŠคํŠธ๋ผ๋ฆฌ ๋ฐ์ดํ„ฐ ํ•ฉ์น˜๊ธฐ
print([1,2,3] + [4,5,6])

๋‹ค์ค‘ ๋ฆฌ์ŠคํŠธ ์•ˆ์˜ ๋ฐ์ดํ„ฐ ๋ฝ‘๊ธฐ

dataList = [1, 2, ['๊ฐ€', '๋‚˜'], [11, 22, [33, 44, 55]]]
#๋ฆฌ์ŠคํŠธ์˜ ํฌ๊ธฐ
print(len(dataList))

#๋‚˜ ์ถœ๋ ฅ
print(dataList[2][1])

#55 ์ถœ๋ ฅ
print(dataList[3][2][2])

 

๋ฆฌ์ŠคํŠธ ๋ฐ์ดํ„ฐ ์‚ญ์ œ

#๋ฆฌ์ŠคํŠธ ๋ฐ์ดํ„ฐ ์‚ญ์ œ
numberList = [1,2,3,4,5]
#๋ช‡๋ฒˆ์งธ ์š”์†Œ ์‚ญ์ œ
del numberList[2]
print(numberList)

#ํŠน์ • ๋ฐ์ดํ„ฐ ์‚ญ์ œ
numberList.remove(5)
print(numberList)

numberList = [1,2,3,3,5]
#๋ฆฌ์ŠคํŠธ์˜ ์‚ญ์ œํ•˜๋ ค๋Š” ํŠน์ • ๋ฐ์ดํ„ฐ๊ฐ€ ์ค‘๋ณต๋˜๋Š” ๊ฒฝ์šฐ ์ˆœ์„œ ๋น ๋ฅธ ๋ฐ์ดํ„ฐ ์‚ญ์ œ
numberList.remove(3)
print(numberList)

#๋ฆฌ์ŠคํŠธ ๋ฐ์ดํ„ฐ ์ „์ฒด ์‚ญ์ œ
del numberList[:]
#๋ฆฌ์ŠคํŠธ ์ž์ฒด๋ฅผ ์‚ญ์ œ
del numberList

 

ํŒŒ์ด์ฌ ๋ฐ˜๋ณต๋ฌธ

#๋ฐ˜๋ณต๋ฌธ
    #๋ฐ˜๋ณต๋ฌธ ๋Œ๋ฆฌ๋ฉด ๋ฌด์—‡? in ๋ฐ˜๋ณต๋ฌธ ๋Œ๋ฆด ์š”์†Œ
for something in [1,2,3] :
    print(something, end=' ')

#๋ฐ˜๋ณต๋ฌธ
nameList = ['๊น€์”จ', '์ด์”จ', '๋ฐ•์”จ', '์ตœ์”จ']

for name in nameList :
    print(name, end=' ')