It shields programmers from the painful details of memory and disk allocation, communication protocols, scheduling of myriad processes, and interfaces to devices for data input and output.
It shields programmers from the painful details of memory and disk allocation, communication protocols, scheduling of myriad processes, and interfaces to devices for data input and output.
这能让程式设计师免于记忆体与磁碟配置、通讯协定、大量行程的排程、资料输出入装置界面等扰人的细节。