wpf中多个窗口上的KeyBinding

<Window x:Class="YourNamespace.YourWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Your Window" Height="450" Width="800">
    <Window.InputBindings>
        <KeyBinding Key="F1" Command="{Binding YourCommand}" />
    </Window.InputBindings>
    <!-- 窗口内容 -->
</Window>

public class YourViewModel : INotifyPropertyChanged
{
    public ICommand YourCommand { get; set; }

    public YourViewModel()
    {
        YourCommand = new RelayCommand(ExecuteYourCommand);
    }

    private void ExecuteYourCommand()
    {
        // 执行命令的逻辑
    }

    // INotifyPropertyChanged的实现代码
}

public partial class YourWindow : Window
{
    public YourWindow()
    {
        InitializeComponent();
        DataContext = new YourViewModel();
    }
}