代码实现EGE画面中有五个矩形，通过鼠标左键点击可以打勾，鼠标右键点击取消

以下是Python实现：

import pygame

# 初始化pygame
pygame.init()

# 设置窗口大小和标题
screen_width, screen_height = 800, 600
screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption("EGE画面")

# 设置矩形的位置、大小和状态
rectangles = [
    {"x": 50, "y": 50, "width": 100, "height": 100, "checked": False},
    {"x": 200, "y": 50, "width": 100, "height": 100, "checked": False},
    {"x": 350, "y": 50, "width": 100, "height": 100, "checked": False},
    {"x": 500, "y": 50, "width": 100, "height": 100, "checked": False},
    {"x": 650, "y": 50, "width": 100, "height": 100, "checked": False},
]

# 定义颜色
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GREEN = (0, 255, 0)
RED = (255, 0, 0)

# 游戏循环
running = True
while running:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.MOUSEBUTTONDOWN:
            # 鼠标左键点击
            if event.button == 1:
                for rectangle in rectangles:
                    if rectangle["x"] < event.pos[0] < rectangle["x"] + rectangle["width"] and \
                            rectangle["y"] < event.pos[1] < rectangle["y"] + rectangle["height"]:
                        rectangle["checked"] = not rectangle["checked"]
            # 鼠标右键点击
            elif event.button == 3:
                for rectangle in rectangles:
                    if rectangle["x"] < event.pos[0] < rectangle["x"] + rectangle["width"] and \
                            rectangle["y"] < event.pos[1] < rectangle["y"] + rectangle["height"]:
                        rectangle["checked"] = False

    # 填充背景色
    screen.fill(WHITE)

    # 绘制矩形
    for rectangle in rectangles:
        pygame.draw.rect(screen, BLACK, (rectangle["x"], rectangle["y"], rectangle["width"], rectangle["height"]), 2)
        if rectangle["checked"]:
            pygame.draw.line(screen, GREEN, (rectangle["x"], rectangle["y"]), (rectangle["x"] + rectangle["width"], rectangle["y"] + rectangle["height"]), 5)
            pygame.draw.line(screen, GREEN, (rectangle["x"] + rectangle["width"], rectangle["y"]), (rectangle["x"], rectangle["y"] + rectangle["height"]), 5)

    # 更新屏幕
    pygame.display.flip()

# 退出pygame
pygame.quit()

运行程序后，可以使用鼠标左键点击矩形打勾，使用鼠标右键点击矩形取消。效果如下图所示：