auto save

snake.py

@@ -54,11 +54,13 @@ while True:
     else:
     else:
         y += 30
         y += 30
     if apple_x == x and apple_y == y:
     if apple_x == x and apple_y == y:
-        apple_x=random.randint(0,660)
-        apple_y=random.randint(0,480)
-    position.append((x, y))
-    position.pop(0)
-    # 将背景图画上去
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x=num1*30-30
+        apple_y=num2*30-30
+    else:
+        position.pop(0)
+    position.append((x,y))# 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
     screen.blit(snake_head, position[-1])