h3 id="AddExtensionType">func <a title="View Source" href="https://github.com/golang/go/blob/master/src/mime/type.go?name=release#56">AddExtensionType</a> <a class="permalink" href="#pkg-index">&para;</a></h3>
    <pre class="funcdecl">func AddExtensionType(ext, typ <a href="builtin.htm#string">string</a>) <a href="builtin.htm#error">error</a></pre>
    <p>函数将扩展名和mimetype建立偶联；扩展名应以点号开始，例如".html"。</p>
    <h3 id="FormatMediaType">func <a title="View Source" h