如何在Firebase Firestore中使用swift有条件地添加另一个筛选器？

let collectionRef = Firestore.firestore().collection("your_collection")

// 创建基本查询
var query = collectionRef.whereField("field1", isEqualTo: "value1")

// 添加额外的筛选条件
query = query.whereField("field2", isGreaterThan: 10)

// 执行查询
query.getDocuments { (snapshot, error) in
    if let error = error {
        print("查询错误：\(error.localizedDescription)")
        return
    }
    
    // 处理查询结果
    if let documents = snapshot?.documents {
        for document in documents {
            let data = document.data()
            // 处理数据
        }
    }
}