在运行时使用javascript从firebase实时数据库中动态获取数据

// 引入Firebase SDK
<script src="https://www.gstatic.com/firebasejs/9.0.2/firebase-app.js"></script>
<script src="https://www.gstatic.com/firebasejs/9.0.2/firebase-database.js"></script>

// 初始化Firebase应用
const firebaseConfig = {
  apiKey: "YOUR_API_KEY",
  authDomain: "YOUR_AUTH_DOMAIN",
  databaseURL: "YOUR_DATABASE_URL",
  projectId: "YOUR_PROJECT_ID",
  storageBucket: "YOUR_STORAGE_BUCKET",
  messagingSenderId: "YOUR_MESSAGING_SENDER_ID",
  appId: "YOUR_APP_ID"
};

firebase.initializeApp(firebaseConfig);

// 获取对数据库的引用
const database = firebase.database();
const dataRef = database.ref("path/to/data");

// 监听数据变化
dataRef.on("value", (snapshot) => {
  // 处理数据
  const data = snapshot.val();
  console.log(data);
});