auto save

snake.py

@@ -56,10 +56,14 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    position.pop(0)
+
     if x == apple_x and y == apple_y:
-        apple_x = random.randint(0,660)
-        apple_y = random.randint(0,480)
+        apple_x = random.randint(1,22)
+        apple_y = random.randint(1,16)
+        apple_x = apple_x*30-30
+        apple_y = apple_y*30-30
+    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
@@ -72,4 +76,4 @@ while True:
     screen.blit(food, (apple_x, apple_y))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(15)
\ No newline at end of file
+    FPSCLOCK.tick(10)
\ No newline at end of file