源码及注释：

import pygame

from sys import exit

from random import randint

import time

import os

# 定义窗口分辨率

SCREEN_WIDTH = 700

SCREEN_HEIGHT = 600

current_path = os.path.abspath(os.path.dirname(__file__))

root_path = current_path[:current_path.find("monkey-picking-peach\\") + len("monkey-picking-peach\\")] \

+ "resource\\images\\"

# 图片

BACKGROUND_IMAGE_PATH = root_path + "background.jpg"

MONKEY_IMAGE_PATH = root_path + "monkey.png"

APPLE_IMAGE_PATH = root_path + "apple.png"

JUMP_STATUS = False

OVER_FLAG = False

START_TIME = None

offset = {pygame.K_LEFT: 0, pygame.K_RIGHT: 0, pygame.K_UP: 0, pygame.K_DOWN: 0}

# 定义画面帧率

FRAME_RATE = 60

# 定义动画周期(帧