auto save

snake.py

@@ -54,12 +54,10 @@ while True:
         y -= 30
     else:
         y += 30
-    position.app22)
-        B=random.randint(1-16)
-        sbx=S*30-30
-        sby=B*30-30
-       
-    else:    
+    position.append((x, y))
+    if x==sbx and y==sby:
+        sbx=random.randint(0,660)
+        sby=random.randint(0,480)
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))