save project

snake.py

@@ -56,7 +56,8 @@ while True:
     if X == apple_x and y ==apple_Y:
         apple_x=random.random.randint(0,660)
         apple_y=random.random.randint(0,480)
-    position.pop(0)
+    else:      
+        position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -66,7 +67,7 @@ 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