如何设置绘图窗口的窗口大小？

import pygame

# 初始化 Pygame
pygame.init()

# 设置窗口大小
screen_width = 800
screen_height = 600
screen = pygame.display.set_mode((screen_width, screen_height))

# 设置窗口标题
pygame.display.set_caption("绘图窗口")

# 游戏主循环
running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # 更新窗口
    pygame.display.flip()

# 退出 Pygame
pygame.quit()

let canvas;

function setup() {
  // 创建一个 800x600 的画布
  canvas = createCanvas(800, 600);
  // 将画布添加到页面上
  canvas.parent("p5canvas");
}

function draw() {
  // 绘制内容
  background(220);
}

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) {
        StackPane root = new StackPane();
        Scene scene = new Scene(root, 800, 600);

        primaryStage.setTitle("绘图窗口");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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