使用pymongo更新所有文档并从mongodb返回所有匹配的文档

import pymongo

client = pymongo.MongoClient("mongodb://localhost:27017/")

db = client["your_database_name"]
collection = db["your_collection_name"]

filter = {}  # 空的筛选条件表示匹配所有文档
update = {"$set": {"field1": "value1", "field2": "value2"}}  # 更新的字段和值
result = collection.update_many(filter, update)
matched_documents = collection.find(filter)

for document in matched_documents:
    print(document)