用javafx实现猜数字游戏

好的，下面是一个简单的猜数字游戏的 JavaFX 实现示例：

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

import java.util.Random;

public class GuessNumberGame extends Application {

    private int guessNumber;
    private int guessCount;

    private Label hintLabel;
    private TextField guessTextField;

    @Override
    public void start(Stage primaryStage) throws Exception {
        // 生成随机数
        Random random = new Random();
        guessNumber = random.nextInt(100) + 1;

        // 创建 UI
        Label titleLabel = new Label("猜数字游戏");
        Label tipLabel = new Label("请输入 1~100 之间的整数：");
        hintLabel = new Label("");
        guessTextField = new TextField();
        Button guessButton = new Button("猜");
        guessButton.setOnAction(event -> guess());

        HBox inputBox = new HBox(10, guessTextField, guessButton);
        inputBox.setAlignment(Pos.CENTER);

        VBox root = new VBox(20, titleLabel, tipLabel, inputBox, hintLabel);
        root.setPadding(new Insets(20));
        root.setAlignment(Pos.CENTER);

        Scene scene = new Scene(root, 400, 300);

        // 显示窗口
        primaryStage.setScene(scene);
        primaryStage.setTitle("猜数字游戏");
        primaryStage.show();
    }

    private void guess() {
        String guessText = guessTextField.getText();
        if (guessText.isEmpty()) {
            hintLabel.setText("请输入一个数！");
            return;
        }

        int guess = 0;
        try {
            guess = Integer.parseInt(guessText);
        } catch (NumberFormatException e) {
            hintLabel.setText("请输入一个整数！");
            return;
        }

        guessCount++;

        if (guess == guessNumber) {
            hintLabel.setText("恭喜你猜中了！共猜了 " + guessCount + " 次。");
            guessTextField.setDisable(true);
        } else if (guess < guessNumber) {
            hintLabel.setText("猜小了，再试试！");
        } else {
            hintLabel.setText("猜大了，再试试！");
        }
    }

    public static void main(String[] args) {
        launch(args);
    }
}

这个游戏会生成一个 1~100 之间的随机数，然后提示用户输入一个整数并猜测这个随机数是多少。如果猜中了，会显示恭喜信息并禁用输入框；如果猜错了，会提示用户再试一次并告诉用户猜的数字是偏大还是偏小。