建立一个页面

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.stage.Stage;

public class MyJavaFX extends Application{
 public void start(Stage primaryStage){

   Button btOK = new Button("OK");
   Scene scene = new Scene(btOK,300,400);
   primaryStage.setTitle("MyJavaFX");
   primaryStage.setScene(scene);
   primaryStage.show();
}



  public static void main(String[] args){

    Application.launch(args);
  }

}