你可以传递给实际sharer.php的参数是“u”和“t”，它们分别是url和title。你可以在页面中添加meta标签，以便在共享者中出现更多信息。引用文档（确保您单击“高级合作伙伴”链接）：

In order to make sure that the preview is always correctly populated, you should add the tags shown below to your html. An example news story could have the following:

<meta name="title" 
      content="Smith hails  unique  Wable legacy">
<meta name="description" 
      content="John Smith claims beautiful football ..." />
<link rel="image_src" 
      href="http://www.onjd.com/design05/images/PH2/WableAFC205.jpg" />

As shown, title contains the preview title, description contains the preview summary and image_src contains the preview image. Please make sure that none of the content fields contain any html markup because it will be stripped out. For consistency s sake, please use the <meta> tag to provide text data for the preview, and the <link> tag for any source urls.

The title and summary tags are the minimum requirements for any preview, so make sure to include these two.

您可以使用以下方式传递自定义的标题、网址、图片和评论/描述：

http://www.facebook.com/sharer.php?s=100&p[title]=titlehere&p[url]=http://www.yoururlhere.com&p[summary]=yoursummaryhere&p[images][0]=http://www.urltoyourimage.com

如图所示，标题包含预览标题，描述包含预览摘要，image_src 包含预览图片。请确保内容字段中没有包含任何 HTML 标记，因为它们将被删除。为了一致性起见，请使用 <meta> 标记提供预览的文本数据，并使用 <link> 标记提供任何源 URL。

Facebook分享者使用 meta 标签为图片的帖子添加描述。我不太清楚它的工作原理，但我认为它在您的页头中使用此标签。

<link rel= image_src  href= http://www.yourwebsite/dir1/dir2/picture.jpg  />