Namespace：ReactiveTests.Tests
装配： Tests.System.Reactive.dll) 中的 Tests.System.Reactive (
语法
'Declaration
Public Sub New
'Usage
Dim instance As New ObservableWhensTest()
public ObservableWhensTest()
public:
ObservableWhensTest()
new : unit -> ObservableWhensTest
public function ObservableWhensTest()