auto save

h.py

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

q.py

+import pygame
+pygame.init()
+ball=pygame.image.load('w.gif')
+speed=[1,1]
+size=width,height=600,400
+screen=pygame.display.set_mode(size,pygame.RESIZABLE)
+pygame.display.set_caption('pygame游戏之旅')
+fclock=pygame.time.Clock()
+black=(0,0,0)
+ballrect=ball.get_rect()
+fps=200
+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]==0 else(abs(speed[0])-1)
+            if event.key==pygame.K_RIGHT:
+                speed[0]=speed[0]+1 if speed[0]>0 else speed[0]-1
+            if event.key==pygame.K_UP:
+                speed[1]=speed[1]+1 if speed[1]>0 else speed[1]-1
+            if event.key==pygame.K_DOWN:
+                speed[1]=speed[1] if speed[1]==0 else(abs(speed[1])-1)
+    ballrect=ballrect.move(speed[0],speed[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]
+    screen.fill(black)
+    screen.blit(ball,ballrect)
+    fclock.tick(fps)
+    pygame.display.update()
\ No newline at end of file