t>String</a><br /></dd><dt><span class="parameter">name</span> (Optional)</dt><dd>类型：<a href="https://docs.microsoft.com/dotnet/api/system.string" target="_blank">System<span id="LST45EAC35F_3"></span><script type="text/javascript">AddLanguageSpecificTextSet("LST45EAC35F_3?cs=.|vb=.|cpp=::|nu=.|fs=.");</script>String</a><br /></dd></dl><h4 class="subHeading">返回值</h4>类型：<a href="https://docs.microsoft.com/dotnet/api/system.threading.tasks.task" target="_blank">Task</a></div><div class="coll