g" target="_blank">System<span id="LSTDA357209_4"></span><script type="text/javascript">AddLanguageSpecificTextSet("LSTDA357209_4?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>String</a><br />语言，zh_CN 或 en_US，默认中文</dd><dt><span class="parameter">fileStream</span></dt><dd>类型：<a href="https://docs.microsoft.com/dotnet/api/system.io.stream" target="_blank">System.IO<span id="LSTDA357209_5"></span><script type="text/javascript">AddLanguageSpecificTextSet("LSTDA357209_5?cs=.|vb=.|cpp=::|nu=.|fs=.