Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
怎样确立、记忆一个基准点,让小车每次可以直接回到基准点?
你要记录一下小车的路径,然后分析一下位置。 这个不是完全准确的。