当用户喜欢一个帖子时，如何动态更新Flask模板？

<div id="post">
  <h2>{{ post.title }}</h2>
  <p>{{ post.content }}</p>
  <p>Likes: <span id="likes">{{ post.likes }}</span></p>
  <button id="like-btn">Like</button>
</div>

<script>
  $(document).ready(function() {
    $("#like-btn").click(function() {
      $.ajax({
        url: "/like",
        type: "POST",
        success: function(data) {
          // 更新喜欢数
          $("#likes").text(data.likes);
        }
      });
    });
  });
</script>

from flask import Flask, jsonify, request

app = Flask(__name__)

# 假设有一个名为posts的数据库表，包含title、content和likes字段

@app.route("/like", methods=["POST"])
def like_post():
    # 获取当前帖子的喜欢数
    post_id = request.form.get("post_id")
    post = Post.query.get(post_id)
    likes = post.likes

    # 更新喜欢数
    post.likes = likes + 1
    db.session.commit()

    # 返回更新后的喜欢数
    return jsonify({"likes": post.likes})

if __name__ == "__main__":
    app.run()