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在App.cs中增加检查管理员代码和重写启动函数

1 检查是不是管理员身份登录

	/// 
        /// 检查是否是管理员身份        /// 
        private void CheckAdministrator()        {            var wi = WindowsIdentity.GetCurrent();            var wp = new WindowsPrincipal(wi);            bool runAsAdmin = wp.IsInRole(WindowsBuiltInRole.Administrator);            if (!runAsAdmin)            {                // It is not possible to launch a ClickOnce app as administrator directly,                // so instead we launch the app as administrator in a new process.                var processInfo = new ProcessStartInfo(Assembly.GetExecutingAssembly().CodeBase);                // The following properties run the new process as administrator                processInfo.UseShellExecute = true;                processInfo.Verb = "runas";                // Start the new process                try                {                    Process.Start(processInfo);                }                catch (Exception ex)                {                    ex.WriteLog();                }                // Shut down the current process                Environment.Exit(0);            }        }

protected override void OnStartup(StartupEventArgs e)        {            base.OnStartup(e);            CheckAdministrator();            //如果不是管理员，程序会直接退出，并使用管理员身份重新运行。            StartupUri = new Uri("MainWindow.xaml", UriKind.RelativeOrAbsolute);        }

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