import xml.etree.ElementTree as ET
from subdir import service
from bson.objectid import ObjectId
from pymongo import MongoClient
import asyncio
client = MongoClient()
db = client["baojia"]
collection = db["qdxm"]
for post in collection.find():
    if "__children" in post:
        child = post["__children"]
        for entry in child:
            if '附注' in entry['清单编码'] and '换' in entry['清单编码']:
                print(entry['清单编码'])