save project

snake.py

 import pygame
-import rando
+import random
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -54,9 +54,13 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    if x==apple_o.
-        
-
+    if x==apple_x and y==apple_y:
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x=(num1-1)*30
+        apple_y=(num2-1)*30
+    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