pygame.display.set_caption(title, icontitle=None)
'''
	• title設置窗口的標題內容
	• icontitle設置圖表化后的小標題
	† 小標題可選，部分系統沒有,一般不設置
'''

pygame.display.get_caption()
'''
• 返回當前設置窗口的標題及小標題內容
• 返回結構為(title, icontitle)
• 該函數與游戲交互邏輯配合，可以根據游戲情節修改標題內容
'''

pygame.display.set_icon(surface)
'''
• 設置窗口的圖標效果
• 圖標是一個Surface對象
'''

import pygame,sys

pygame.init()
icon = pygame.image.load("img/xyicon.png")
pygame.display.set_icon(icon)     #設置圖標
v = pygame.display.Info()
size = width,height = 600,400
speed = [1,1]
BLACK = 0, 0, 0
s = pygame.display.set_mode(size,pygame.RESIZABLE)
pygame.display.set_caption("hi 滑稽")
ball = pygame.image.load("img/361.png")
ballrect = ball.get_rect()
fps = 200
fclock = pygame.time.Clock()
while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                speed[0] = speed[0] if speed[0] == 0 else (abs(speed[0]) - 1)*int(speed[0]/abs(speed[0]))
            elif event.key == pygame.K_RIGHT:
                speed[0] = speed[0] + 1 if speed[0] > 0 else speed[0] - 1
            elif event.key == pygame.K_UP:
                speed[1] = speed[1] + 1 if speed[1] > 0 else speed[1] - 1
            elif event.key == pygame.K_DOWN:
                speed[1] = speed[1] if speed[1] == 0 else (abs(speed[1]) - 1)*int(speed[1]/abs(speed[1]))
            elif event.key == pygame.K_ESCAPE:     # 獲取ESC  按下時退出
                sys.exit()
        elif event.type == pygame.VIDEORESIZE:
            size = width,height = event.w,event.h
            s = pygame.display.set_mode(size,pygame.RESIZABLE)
    ballrect = ballrect.move(speed)
    if ballrect.left  0 or ballrect.right > width:
        speed[0] = - speed[0]
    if ballrect.top  0 or ballrect.bottom > height:
        speed[1] = - speed[1]
    pygame.display.get_caption()
    s.fill(BLACK)
    s.blit(ball, ballrect)
    pygame.display.update()
    fclock.tick(fps)

pygame.display.get_active()
'''
• 當窗口在系統中顯示(屏幕繪制/非圖標化)時返回True，否則返回False
pygame.display.get_active()
• 該函數可以用來判斷是否游戲窗口被最小化
• 進一步，判斷后可以暫停游戲，改變響應模式等
'''

pygame.display.flip()
# • 重新繪制整個窗口
pygame.display.update()
#• 僅重新繪制窗口中有變化的區域，相比.flip()執行更快