02 2012 档案
摘要:首先 引用Microsoft.VisualBasic然后新建一个类 single public class single:Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase { App a; public single() { this.IsSingleInstance = true; } protected override bool OnStartup(Microsoft.VisualBasic.ApplicationServices.StartupEventArgs eventArgs) { a =
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