python list使用示例 list中找连续的数字
线上有个需求，格式化,从一堆s1,s100-s199中找出连续的服并且格式化显示出来，如：
神魔：S106-109,s123,s125
御剑: s106-109,s123,s125
复制代码 代码如下:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# 2014/01/15 14:15
import sys
from itertools import *
from operator import itemgetter
def parse(filename):
d = {}
for line in open(filename, \’r\’):
_line = line.split()
d.setdefault(_line[0], []).append(_line[1])
for key in d.keys():
data = sorted(map(lambda x: int(x[1:]), d[key]))
sys.stdout.write(key + \” \”)
for k, g in groupby(enumerate(data), lambda (i, x): i – x):
ret = map(itemgetter(1), g)
if len(ret) > 1:
sys.stdout.write(\”S%d-%d,\” % (ret[0], ret[-1]))
elif len(ret) == 1:
sys.stdout.write(str(\”S%s\”) % ret[0] + \”,\”)
sys.stdout.write(\’\\n\’)
if __name__ == \”__main__\”:
filename = sys.argv[1]
parse(filename)