VB.NET中lambda的写法

lambda 或者叫匿名方法

'有返回值的匿名函数，func前面输入参数，最后一个输出参数
        Dim func1 As Func(Of Integer, Integer) = Function(ByVal i As Integer)
                                                     Return i + 1
                                                 End Function
        Dim func2 As Func(Of Integer, Integer, Integer) = Function(ByVal i As Integer, ByVal t As Integer)
                                                              Return i * t
                                                          End Function
        Dim func3 As Func(Of Integer, Integer, String) = Function(ByVal i As Integer, ByVal t As Integer)
                                                             Return (i * t).ToString
                                                         End Function
        '无返回值的函数
        Dim act1 As Action(Of String) = Sub(ByVal name As String)
                                            Console.Write("hello," + name)
                                        End Sub
        Console.WriteLine(func1.Invoke(4))
        Console.WriteLine(func2.Invoke(2, 3))
        Console.WriteLine(func3.Invoke(2, 3))
        act1.Invoke("bob")