using System.Windows; using System.Windows.Input; namespace VideoConcat { /// /// Interaction logic for MainWindow.xaml /// public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void BtnExit_Click(object sender, RoutedEventArgs e) { this.Close(); } private void Grid_MouseDown(object sender, MouseButtonEventArgs e) { if (Mouse.LeftButton == MouseButtonState.Pressed) { this.DragMove(); } } private void BtnLogin_Click(object sender, RoutedEventArgs e) { Video video = new(); video.Show(); this.Close(); return; if (txtUserName.Text == "admin" && txtPassword.Password == "&o4Fwag3xYUf") { } MessageBox.Show("用户名或者密码错误!"); txtUserName.Clear(); txtPassword.Clear(); } } }