save project

snake.py

@@ -51,7 +51,8 @@ while True:
         y -= 30
     else:
         y += 30
-    position.append((x, y))
+    position.append((x, y))\
+    if x 
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -62,7 +63,7 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
\ No newline at end of file