auto save

a.py

+import pygame
+pygame.init()
+size=width,height=600,400
+speed=[1,1]
+black= 0,0,0
+fps=300
+fclock=pygame.time.Clock()
+ball=pygame.image.load(r'C:\Users\Administrator\Desktop\ball.gif')
+ballrect=ball.get_rect()
+screen=pygame.display.set_mode(size,pygame.FULLSCREEN)
+pygame.display.set_caption('pygame游戏之旅')
+while True:
+    for event in pygame.event.get():
+        if event.type == pygame.QUIT:
+            exit()
+        elif event.type == pygame.KEYDOWN:
+            if event.key == pygame.K_LEFT:
+                speed[0] = speed[0] if speed==0 else abs(speed[0])-1
+            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==0 else abs(speed[1])-1
+    if ballrect.left < 0 or ballrect.right >width:
+        speed[0]=-speed[0]
+    if ballrect.top < 0 or ballrect.bottom >height:
+        speed[1]=-speed[1]
+    
+    ballrect=ballrect.move(speed[0],speed[1])
+    screen.fill(black)
+    screen.blit(ball,ballrect)
+    pygame.display.update()
+    fclock.tick(fps)
\ No newline at end of file

b.py

+a=10
+b=20
+c=a if a>b else b
+print(c)
\ No newline at end of file