心理学实验程序编程（python）

import pygame
from pygame.locals import *

pygame.init()
win = pygame.display.set_mode((800,600),DOUBLEBUF|HWSURFACE)
for i in range(10):
    win.fill((0,255,0))
    if i%2==0:
        win.fill((255,0,0))
    pygame.time.wait(500)
    pygame.display.flip()

import pygame
from pygame.locals import *
import sys

pygame.init()
win = pygame.display.set_mode((800,600),DOUBLEBUF|HWSURFACE)
while True:
    ev = pygame.event.get()
    for i in ev:
        if not i ==None:
            print(i)
        if i.type==QUIT:
            pygame.quit()
        elif i.type==MOUSEMOTION:
            pygame.draw.circle(win,(255,0,0),i.pos,3, 3)
        pygame.display.flip()

#random circle dot in the window
import pygame,sys,random
from pygame.locals import *


pygame.init()
win = pygame.display.set_mode((800,600),DOUBLEBUF|HWSURFACE)
cor = ()
position = ()
for i in range(30):
  
    num = random.choice([0,1])
    if num ==0:
        cor = (255,0,0)
        position = (200,300)
    else:
        cor=(0,255,0)
        position =(600,300)
    pygame.time.wait(500)

    pygame.draw.circle(win,cor,position,10)
##    win.fill((0,0,0))   the display covers?when the code is here,the reason is that the background dont cansal the circle 
    
    pygame.display.flip()
    pygame.time.delay(1000)
    win.fill((0,0,0))
    pygame.display.flip()#no no no ,because i dont have the flip(), not the background cannt cover the circle 
    pygame.time.delay(800)


pygame.quit()
sys.exit()