-----------------------------------------------------------------
if __name__ == '__main__': 单独的可执行文件
xxxx
__name__ == 模块名 当用于模块时
----------enumerate-------rjust------
str.rjust(10, '0')
for i, iterm in enumerate( object , start_i): xxx
------------dict----------------------------------------
kk = dict()
kk = {}
kk.keys(), kk.values(), kk.items(), kk.has_key(), kk.pop(key,'haha')
kk.get('key', 0)
{}.fromkeys(list [, init])
name in dict_var
-----------2----------------file--------------
1. for line in file( filename) : line.strip().split( ' ')
2. with open(filename) as ff:
line = ff.readline()
while line :
xxxx
line = ff.readline()
3.
---------------sorted--dict---
sorted(dict.iteritems(), key=lambda d:d[1], reerse=False)
------------------------------------------
2. dic.fromkeys(seq [,value]).keys() #出去列表中重复出现的元素