检查MSDN中有关该名称空间的文档.确定其所在的程序集.然后添加对该程序集的引用.

Check MSDN for documentation on that namespace. Identify which assembly its located in. Then add a reference to that assembly.

Google"MSDN system.media" .从该命名空间中选择一个类.我将使用 SoundPlayer .

Google "MSDN system.media".. Pick a class from that namespace. I'll use SoundPlayer.

文档说该类位于Assemblies: System.dll, System.Windows.Extensions.dll中.

The documentation says that class is located in Assemblies: System.dll, System.Windows.Extensions.dll.

因此 查看全文