Python - for, while

1. for

>>> for i in [0,1,2]:
>>> 	print(i)
0
1
2

# 프린트
>>> for i in [0,1,2]:
>>> 	print(i, end = '_')	# 마지막문자를 '\n' 대신 '_'로
0_1_2_

# range
>>> for i in range(0,3):  #초기값(0) 최종값(3-1) 증감값(1고정)
>>> 	print(i)
0
1
2
# range(0,3) >> range(3) 으로도 표현가능

 

 

2. while

>>> cnt = 0
>>> while cnt < 3 :
>>> 	print(cnt, end = ' ')
>>> 	cnt += 1
0 1 2

 

 

3. break, continue

# break
>>> cnt = 0
>>> while True :
... 	cnt += 1
... 	if cnt > 10 : break
>>> print(cnt)
11

# continue
>>> cnt = 0
>>> while cnt < 10 :
... 	cnt += 1
...     if cnt%2 == 0 : continue
...     print(cnt, end = ' ')
1 3 5 7 9