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    <title>元数据示例</title>
    
    <meta name="author" content="Chris Mills">
    <meta name="description" content="本示例页面展示网页元数据的用法。">

    <meta property="og:image" content="https://developer.cdn.mozilla.net/static/img/opengraph-logo.dc4e08e2f6af.png">
    <meta property="og:description" content="本示例页面展示网页元数据的用法。">
    <meta property="og:title" content="MDN页�