一张包含所有颜色的图片

import pygame
pygame.init()
canvas=pygame.Surface((4096,4096))

rgb=[0,0,0]
x_y=[0,0]
for r in range(256):
    rgb[2]=0
    rgb[1]=0
    for g in range(256):
        rgb[2]=0
        for b in range(256):
            pygame.draw.rect(canvas,rgb, (x_y,(1,1)) )
            print(rgb)
            x_y[0]+=1
            if x_y[0]>4096:
                x_y[0]=0
                x_y[1]+=1
            rgb[2]=rgb[2]+1
        rgb[1]+=1

    rgb[0]+=1

pygame.image.save(canvas,"color.jpg")