如何从Flutter firestore中的嵌套集合中获取数据？

CollectionReference nestedCollectionRef = FirebaseFirestore.instance
    .collection('your_collection')
    .doc('your_document')
    .collection('your_nested_collection');

nestedCollectionRef.get().then((QuerySnapshot querySnapshot) {
  querySnapshot.docs.forEach((doc) {
    // 处理每个文档的数据
    print(doc.data());
  });
});

nestedCollectionRef
    .where('field', isEqualTo: 'value')
    .get()
    .then((QuerySnapshot querySnapshot) {
  querySnapshot.docs.forEach((doc) {
    // 处理满足条件的文档数据
    print(doc.data());
  });
});