Print 사용법
# chapter01-1
# print 사용법
# 기본 출력
print('Python Start!') # Python Start!
print("python start!") # python start!
print('''python start!''') # python start!
print("""python start!""") # python start!
print()
# separator 옵션
print('p', 'y', 't', 'h', 'o', 'n', sep='♡') # p♡y♡t♡h♡o♡n
print('p', 'y', 't', 'h', 'o', 'n', sep='|') # p|y|t|h|o|n
print('010', '7702', '6630', sep='-') # 010-7702-6630
print('python', 'google.com', sep='@') # python@google.com
print()
# end 옵션
print('welcome to', end=' ')
print('IT News', end=' ')
print('web site') # welcome to IT News web site
print()
# file 옵션
import sys
print('Learn Python', file=sys.stdout) # Learn Python
print()
# format 사용(d-정수, s-문자열, f-실수)
print('%s %s' % ('one', 'two')) # one two
print('{} {}'.format('one', 'two')) # one two
print('{1} {0}'.format('one', 'two')) # two one
print()
# %s
print('%10s' % ('nice')) # nice
print('{:>10}'.format('nice')) # nice
print('%-10s' % ('nice')) # nice
print('{:10}'.format('nice')) # nice
print('{:☆>10}'.format('nice')) # ☆☆☆☆nice
print('{:^10}'.format('nice')) # nice
print('%.5s' % ('nice')) # nice
print('%.5s' % ('pythonstudy')) # pytho
print('%5s' % ('pythonstudy')) # pythonstudy
print('{:10.5}'.format('pythonstudy')) # pytho
print()
# %d
print('%d %d' % (1, 2)) # 1 2
print('{} {}'.format(1, 2)) # 1 2
print('%4d' % (42345342)) # 42345342
print('%4d' % (42)) # 42
print('{:4d}'.format(42345342)) # 42345342
print('{:4d}'.format(42)) # 42
print()
# %f
print('%f' % (3.1234567890)) # 3.123457
print('{:f}'.format(3.1234567890)) # 3.123457
print('%1.8f' % (3.1234567890)) # 3.12345679
print('%06.2f' % (3.1234567890)) # 003.12
print('{:06.2f}'.format(3.1234567890)) # 003.12
Printing Formatting
# chapter02-2
# print 사용법
# 파이썬 3가지 print formatting
"""
참고 : Escape 코드
\n : 개행
\t : 탭
\\ : 문자
\' : 문자
\" : 문자
\000 : 널 문자
"""
# 3가지 format practices
x = 50
y = 100
text = 30583134
n = 'Lee'
# 출력 1 (% formatting)
ex1 = 'n = %s, s = %s, sum = %d' % (n, text, (x + y))
print(ex1)
# n = Lee, s = 30583134, sum = 150
# 출력 2 (str.format)
ex2 = 'n = {n}, s = {s}, sum = {sum}'.format(n=n, s=text, sum=x + y)
print(ex2)
# n = Lee, s = 30583134, sum = 150
# 출력 3 (f-string)
ex3 = f'n = {n}, s = {text}, sum = {x + y}'
print(ex3)
# n = Lee, s = 30583134, sum = 150
print(f'n = {n}, s = {text}, sum = {x + y}')
# n = Lee, s = 30583134, sum = 150
print()
# 구분기호
n = 1000000000000
print(f'n : {n:,}') # n : 1,000,000,000,000
print()
# 정렬
# ^ : 가운데 정렬 / < : 왼쪽정렬 / > : 오른쪽정렬
t = 20
print(f't : {t:10}') # t : 20
print(f't center : {t:^10}') # t center : 20
print(f't center : {t:<10}') # t center : 20
print(f't center : {t:>10}') # t center : 20
print()
print(f't center : {t:-^10}') # t center : ---20-----
print(f't center : {t:#<10}') # t center : 20########