text: #coding:utf8
  import pymongo
  host = '172.18.19.219'
  port = 27017
  db_name = 'crs'
  col_name = 'sid_info'
  
  conn = pymongo.MongoClient(host, port)
  db = conn[db_name]
  col = db[col_name]
  cod = {}
  cod['cid'] = {'$in':['3','4','5','6']}
  src = col.find(cod)
  for k in src:
      print (k)