2016-12-30 しゃりんがん --- 我也不知道我为什么要弄这东西出来

import pygame
from pygame.locals import *
from sys import exit
from math import pi, sin, cos
pygame.init()

BLACK = (0,0,0)
WHITE = (255,255,255)
RED = (255,0,0)

size = width,height = 400,400
screen = pygame.display.set_mode(size)
position = width//2, height//2

s = sin(pi//3)*200
c = cos(pi//3)*200
points1 = [(200,0), (200-s, 200+c), (200+s, 200+c)]
points2 = [(200-s, 200-c), (200, 400), (200+s, 200-c)]

clock = pygame.time.Clock()
while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            exit()

    screen.fill(BLACK)
    pygame.draw.circle(screen, RED, position, 200, 0)
   
    pygame.draw.lines(screen, BLACK, True, points1,2)
    pygame.draw.lines(screen, BLACK, True, points2,2)
   
    pygame.draw.circle(screen, BLACK, position, 20)

    pygame.display.flip()
    clock.tick(10)