您可以使用以下方法之一:

You could use one of the following approaches:

  const query = ......;
  query
    .then(function(querySnapshot) {
      querySnapshot.forEach(function(doc) {
        console.log(doc.ref.path);
        console.log(doc.ref.parent.parent.id);
      });
    })

在每个 QueryDocumentSnapshot 上，您可以使用 path 属性，它将返回完整路径，例如 UserList1/User1/Notes/Doc1 .

On each QueryDocumentSnapshot, you can use the ref property, which returns a DocumentReference. Then, on this DocumentReference you use the path property, which will return the full path, e.g. UserList1/User1/Notes/Doc1.

或者您使用 parent DocumentReference 的> 属性，该属性返回 parent 属性(这次是 CollectionReference 的属性)，以获取父 DocumentReference ，然后此父 DocumentReference 的 id 属性.

Or you use the parent property of the DocumentReference, which returns a CollectionReference, then you use again the parent property (of the CollectionReference this time) to get the parent DocumentReference and then the id property of this parent DocumentReference.