�Z_SYNC_FLUSH。</p>
    <h4 id="Writer.Close">func (*Writer) <a title="View Source" href="https://github.com/golang/go/blob/master/src/compress/gzip/gzip.go?name=release#250">Close</a> <a class="permalink" href="#pkg-index">&para;</a></h4>
    <pre class="funcdecl">func (z *<a href="#Writer">Writer</a>) Close() <a href="builtin.htm#error">error</a></pre>
    <p>调用Close会关闭z，但不会关闭下层io.Writer接口。</p>
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