>>> x = 3

>>> x = 1 if x<3 else 2

>>> x

2

>>> List = ['a','b','c','d']

>>> for eachList in List:

...     print eachList

...

a

b

c

d

>>> for eachList in range(len(List)):

...     print List[eachList]

...

a

b

c

d

>>> for i,eachList in enumerate(List):

...     print "%d %s" % (i,eachList)

...

0 a

1 b

2 c

3 d

#coding:utf-8

#!/usr/bin/env python

'maxFact.py -- 寻找一个数的最大约数'

def showMaxFactor(num):

	count = num/2

	while count > 1:

		if num % count == 0:

			print '%d 的最大约数是 %d' % (num,count)

			break

		count -= 1

	else:

		print num,'没有最大公约数'

for eachNum in range(10,21):

	showMaxFactor(eachNum)