save project

snake.py

@@ -59,8 +59,11 @@ while True:
         num2=random.randint(1,16)
         apple_x=num1*30-30
         apple_y=num2*30-30
+        score+=10
     else:
         po.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     screen.blit(beijing,(0,0))
     
 
@@ -76,4 +79,4 @@ while True:
     text = my_font.render(info,True,(0,0,0))
     screen.blit(text,(540,10))
     pygame.display.update()
-    FPSCLCOLCK.tick(10)
\ No newline at end of file
+    FPSCLCOLCK.tick(3)
\ No newline at end of file