摘要:
一、ContextMenuStrip创建主菜单与子菜单 using System; using System.Windows.Forms; using System.ComponentModel; using System.Data; namespace MenuStripExample { pub 阅读全文
摘要:
Dim BeforeValue As String = "123456789" Dim AfterValue As String = "321465798" ' 参数验证 If BeforeValue Is Nothing OrElse AfterValue Is Nothing OrElse Be 阅读全文