In order to reduce repeat work during developing nc system software and arising efficiency , program design method of extensible command set is applied based on software - overlap thoughts , which enhances program transportability and extendability . then nc program interpreter is realized 為了降低數(shù)控系統(tǒng)開發(fā)過程中程序員大量的重復(fù)性勞動(dòng),提高工作效率,應(yīng)用了基于軟件重用思想的程序開發(fā)方法? ?增量式程序開發(fā)方法,來實(shí)現(xiàn)代碼集的擴(kuò)展,提高程序的可移植性,并依此開發(fā)了支持語言擴(kuò)展的數(shù)控程序解釋器。