方法时，请省略第一个参数。请参考 <a href="https://docs.microsoft.com/dotnet/visual-basic/programming-guide/language-features/procedures/extension-methods" target="_blank">扩展方法 (Visual Basic)</a> 或 <a href="https://docs.microsoft.com/dotnet/csharp/programming-guide/classes-and-structs/extension-methods" target="_blank">扩展方法 (C# 编程指南)</a> 获取更多信息。</div><div class="collapsibleAreaRegion" id="seeAlsoSection"><span class="collapsibleRegionTitle" onclick="Sec