Tolley's team has even tried driving over one of their robots in a car. "We wanted to show it was soft and squishy enough. It can really suffer a lot of different abuses."
d=7 was the sweet spot for early trained models — multiple independent teams converged on this，详情可参考safew官方下载
// 3. 从后向前放置（保证稳定性），这一点在服务器推荐中也有详细论述
* @param {number} target 目的地位置（英里）
heap, copies the stack-allocated slice to the heap copy, and returns