auto save

snake.py

@@ -54,13 +54,11 @@ while True:
         y -= 30
     else:
         y += 30
-    position.app22)
-        B=random.randint(1-16)
-        sbx=S*30-30
-        sby=B*30-30
-       
-    else:    
-        position.pop(0)
+    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))
     # 将贪吃蛇的头画上去
@@ -68,7 +66,7 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-        
+ 
     # 将果实画上去
     screen.blit(food, (sbx, sby))