委托与回调小测试sln

委托与回调小测试，可供学习用 Public Delegate Function DelTest(str2 As String, str1 As String, ByRef str3 As String) As String Public Delegate Sub DelEvent(str2 As String, str1 As String, ByRef str3 As String) Sub New() ' 此调用是设计器所必需的。 InitializeComponent() ' 在 Initia