委托可以认为是一类方法签名一致的方法抽象类。

委托对象必须由签名一致的方法实例化，而通过调用委托对象可以调用实例化委托对象的方法。

@H_502_4@Public Class Form1 Public Delegate Function addMethod(ByVal x,ByVal y) As Integer Private Sub Button1_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles Button1.Click Dim a As addMethod Dim b As Tdelegate b = New Tdelegate() a = New addMethod(AddressOf b.add) 'TextBox1.Text = TextBox1.Text + a(3,9).ToString 'TextBox1.Text = TextBox1.Text + (New addMethod(AddressOf New Tdelegate().add))(3,9).ToString TextBox1.Text = TextBox1.Text + New addMethod(AddressOf New Tdelegate().add).Invoke(3,9).ToString End Sub End Class Public Class Tdelegate Public Function add(ByVal x,ByVal y) As Integer Return x + y End Function End Class 原文链接：https://www.f2er.com/vb/259350.html