WPF实现DoEvents

代码：

public static void DoEvents(Dispatcher dispatcher)
{
    DispatcherFrame frame = new DispatcherFrame();
    dispatcher.BeginInvoke(new Action<object>((obj) =>
    {
        DispatcherFrame frm = obj as DispatcherFrame;
        frm.Continue = false;
    }), DispatcherPriority.Background, frame);
    Dispatcher.PushFrame(frame);
}

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