public MainWindow() { InitializeComponent(); Loaded += MainWindow_Loaded; } private void MainWindow_Loaded(object sender, RoutedEventArgs e) { this.Title = "哈哈哈"; Task.Run(() => { ///调度员 this.Dispatcher.Invoke(() => { button.Content = "确定"; }); }); Task.Run(() => { Application.Current.Dispatcher.Invoke(() => { button.Content = "确定2"; }); }); }