JavaScript:如何使用API Graph点赞Facebook wall post (给定Facebook page URL和Facebook post id)？

// 引入Facebook JavaScript SDK
<script>
  window.fbAsyncInit = function() {
    FB.init({
      appId      : 'Your-App-ID',
      cookie     : true,
      xfbml      : true,
      version    : 'v15.0'
    });
  };

  // 加载Facebook JavaScript SDK
  (function(d, s, id){
     var js, fjs = d.getElementsByTagName(s)[0];
     if (d.getElementById(id)) {return;}
     js = d.createElement(s); js.id = id;
     js.src = "https://connect.facebook.net/en_US/sdk.js";
     fjs.parentNode.insertBefore(js, fjs);
   }(document, 'script', 'facebook-jssdk'));
</script>

// 点赞Facebook wall post的函数
<script>
  function likePost(pageUrl, postId) {
    FB.api(
      '/' + postId + '/likes',
      'POST',
      function(response) {
        if (response && !response.error) {
          console.log('Post liked successfully!');
        } else {
          console.log('Failed to like post: ' + response.error.message);
        }
      }
    );
  }
</script>

// 调用点赞函数
<script>
  likePost('https://www.facebook.com/your-page-url', 'your-post-id');
</script>