The A Wall:* Calculating a 200-300km car route (or even shorter bicycle/pedestrian paths) could mean visiting over a million road segments, taking 10-20 seconds. For longer trips, this wait could become frustrating.
圖像來源，SCREENSHOT
，这一点在heLLoword翻译官方下载中也有详细论述
+sleep_max: float
对于 Protobuf 的介绍和原理，可以参考前文 juejin.cn/post/757536…