如何使用Python和pygame创建MS Paint克隆

import pygame
import sys

pygame.init()

screen_width = 800
screen_height = 600
screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption("MS Paint Clone")

colors = {
    "white": (255, 255, 255),
    "black": (0, 0, 0),
    "red": (255, 0, 0),
    "green": (0, 255, 0),
    "blue": (0, 0, 255),
}

pen_width = 5

def handle_events(screen):
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
        elif event.type == pygame.MOUSEBUTTONDOWN:
            if event.button == 1:
                pygame.draw.circle(screen, colors["black"], event.pos, pen_width)
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_c:
                screen.fill(colors["white"])

while True:
    handle_events(screen)
    pygame.display.update()