在mongo和NodeJs中请求嵌入文档字段的动态查询？

const MongoClient = require('mongodb').MongoClient;

// 连接到MongoDB数据库
MongoClient.connect('mongodb://localhost:27017', (err, client) => {
  if (err) throw err;

  // 选择数据库和集合
  const db = client.db('mydb');
  const collection = db.collection('mycollection');

  // 构建动态查询
  const field = 'nestedField';
  const value = 'someValue';
  const query = {};
  query[field] = value;

  // 执行查询
  collection.find(query).toArray((err, result) => {
    if (err) throw err;

    console.log(result);
    client.close();
  });
});