WPF: 读取命令行参数

public partial class App : Application
    {
        public void App_Startup(object sender, StartupEventArgs e)
        {
            MainWindow win = new MainWindow();
            win.Show();
            if(e.Args.Length > 0)
            {
                string file = e.Args[0];
                win.TextBox1.Text = file;
            }
        }
    }

<Application x:Class="Test.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             Startup="App_Startup">
    <Application.Resources>
         
    </Application.Resources>
</Application>