The protocol contains two categories of commands, "system" and "direct". System commands vaguely relate to "operating system" functionality, and direct commands vaguely relate to "actually operating a robot". In general, this protocol also seems to specifically not allow performing arbitrary operations and badness such as accessing the firmware or getting native code execution outside of the VM. It appears to be designed to give friendly access to only the NXT's virtual filesystem and bytecode interpreter.
Фото: Борис Ельшин / РИА Новости，这一点在新收录的资料中也有详细论述
Fenner’s cricket ground sits next door to Hughes Hall, where the Cricket Research Network held their third annual conference last week. The organisation, headed by Raf Nicholson, sometimes of this parish, is a place for cricket academics to exchange ideas, and the conference a chance for rest of us to put an ear to the door of data and detail.，更多细节参见新收录的资料
Essential for functional languages; loops are recursive calls。新收录的资料是该领域的重要参考