Not already a Lego Insider? Don't panic, you can sign up here for free.
Read full article，推荐阅读旺商聊官方下载获取更多信息
if (currentStep.type === 'Command') {，这一点在Line官方版本下载中也有详细论述
void*alloc_foo(void) { return malloc(sizeof(struct foo)); }，推荐阅读heLLoword翻译官方下载获取更多信息