save project

snake.py

@@ -56,6 +56,9 @@ while True:
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
+    if x == apple_x and y == apple_y:
+        apple_x = random.randint(0,660)
+        apple_y = random.randint(0,480)
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
     # 将贪吃蛇的身体画上去