|vb=(Of |cpp=&lt;|fs=&lt;'|nu=(");</script><a href="https://docs.microsoft.com/dotnet/api/system.timespan" target="_blank">TimeSpan</a><span id="LSTD7C764B0_5"></span><script type="text/javascript">AddLanguageSpecificTextSet("LSTD7C764B0_5?cs=&gt;|vb=)|cpp=&gt;|fs=&gt;|nu=)");</script><br /></dd><dt><span class="parameter">isFullKey</span> (Optional)</dt><dd>类型：<a href="https://docs.microsoft.com/dotnet/api/system.boolean" target="_blank">System<span id="LSTD7C764B0_6"></span><script type="text/javasc