Python字典循环添加一键多值的用法实例

host_key,product_id,product_name,cont_start,cont_end
ah2.zhangyue.com,100002,掌阅,bookId=,&startChapterId
ih2.ireader.com,100002,掌阅,bid=,&
www.ireader.com,100002,掌阅,&bid=,&cid
m.zhangyue.com,100002,掌阅,readbook/,/
c13.shuqireader.com,100003,书旗,bookId=,&chapterId
t.shuqi.com,100003,书旗,bid/,/cid

def makeDict():
  fileRead=open('jp_url.txt','rb')
  lines=fileRead.readlines()
  read_dict={}#定义字典
  for line in lines:
    line_list=line.split(',')#每行按逗号分隔成列表
    id=line_list[1]#取到id
    name=line_list[2]#取到name
    read_dict[id]=name#此处关键产生键值对，其中key是id
  read_dict.pop('product_id')#删除key为‘product_id'的键值对
  return read_dict
read_dict=makeDict()

guaguashipinliaotianshi|.guagua.cn,
guaguashipinliaotianshi|iguagua.net,
guaguashipinliaotianshi|.17guagua.com,
jiuxiumeinvzhibo|.69xiu.com,
nbazhibo|.estream.cn,
youbo|yb.sxsapp.com,

def makehostDict():
  host_dict={}
  f_allhost=open('xml_host.txt','rb')
  lines=f_allhost.readlines()
  for line in lines:
    line_list=line.split('|')
    name=line_list[0]
    host=line_list[1].strip('\n')
    if host is not '':
      if host_dict.has_key(name):
        host_dict.get(name).append(host)#此处为关键向字典里已经有的key(name)值后继续添加value(host)
      else:
        host_dict.setdefault(name,[]).append(host)#创建{name，[host]}value为列表的格式的字典。
  return host_dict
host_dict=makehostDict()
print host_dict