https://docs.python.org/2.7/library/index.html

# -*- coding: UTF-8 -*-

缩进indent

raw_input

tuple()   list[]   dict{key:value}    set([])

if ():

for i in range(len(L)):

for value in  d.itervalues():

for k,v in d.iteritems():

from collections import Iterable

isinstance

slice [:]

for i,value in enumerate(['a','b','c']):