test_list = ['one', 'two', 'three']

for i in test_list:

        print(i)

>>> a = [(1,2), (3,4), (5,6)]

>>> for (first, last) in a:

...     print(first + last)

...

3

7

11

#marks1.py

marks = [90, 25, 67, 45, 80]

number = 0

for mark in marks:

        number = number + 1

        if mark >= 60:

                print("%d pass" % number)

        else :

                print("%d fail" % number)

# marks3.py

# encoding: utf8

marks = [90, 25, 67, 45, 80]

for number in range(len(marks)):

    if marks[number] < 60: continue

    print("%d번 학생 축하합니다. 합격입니다." % (number+1))

a = [1,2,3,4]

result = []

for num in a:

        result.append(num*3)

        print(result)

[3]

[3, 6]

[3, 6, 9]

[3, 6, 9, 12]  

>>> result = [num * 3 for num in a]

>>> print(result)

[3, 6, 9, 12]

for i in range(0, 15, 3):

        print(i)

0

3

6

9

12

for i in range(시작값, 끝값, 사이값):

for i in range(시작값, 끝값+1):

i = 0

while i < 5:

        print(i*3)

        i = i + 1