引用
Social plugins
Social plugins enable you to provide engaging social experiences to your users with just a line of HTML. Because the plugins are served by Facebook, the content is personalized to the viewer whether or not they have signed into your site.
Social plugins enable you to provide engaging social experiences to your users with just a line of HTML. Because the plugins are served by Facebook, the content is personalized to the viewer whether or not they have signed into your site.
简单地说：你想在你网站的某个网页上显示一个按钮、一小块html代码等来链接Facebook应用，那么只要引入facebook的API和一段fbml就可以达到目的。
<html>
<body>
<div id="fb-root"></div>
</body>
</html>
<script>
// 116344281725102 是一个facebook应用的app id.
window.fbAsyncInit = function() {
FB.init({appId: '116344281725102', status: true, cookie: true,
xfbml: true});
};
(function() {
var e = document.createElement('script');
e.async = true;
//e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
e.src = 'http://connect.facebook.net/en_US/all.js';
document.getElementById('fb-root').appendChild(e);
}());
</script>
<fb:login-button></fb:login-button>
浏览器中运行看看结果
