[Python] 반복문 for

 for문

for i in range(5):
    print('i: ',i)

for j in range(10, 20):
    print('j: ',j)

for k in range(10, 0, -1):
    print('k: ',k)

 

 

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 1~10까지 합

total = 0

for i in range(11):
    total += i

print('1부터 10까지 합: ', total)

 

 

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1~10까지 짝수합

total = 0

for i in range(11):
    if i % 2 == 0:
        total += i

print('1부터 10까지 짝수합: ', total)

 

 

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중첩 for문

for a in range(2):
    print('a: ',a)
    for b in range(3):
        print('b: ',b)
        for c in range(4):
            print('c: ',c)

 

 

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구구단 출력

for x in range(2,10):
    print(x, '단')

    for y in range(1,10):
        z=x*y
        print ('{} x {} = {}'.format(x, y, z))

 

 

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별삼각형 출력

for start in range(1,11):
    for end in range(start): 
        print('★', end='')
    print()

for i in range(11):
    print('★' *i)