save project

snake.py

@@ -42,6 +42,7 @@ while True:
         y += 30        
         y += 30        
     
     
     position.append((x,y))
     position.append((x,y))
+    if x ==
     position.pop(0)
     position.pop(0)
      # 将背景图画上去
      # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
@@ -57,4 +58,4 @@ while True:
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    FPSCLOCK.tick(2) 
+    FPSCLOCK.tick(3) 
\ No newline at end of file