发布时间：2013-04-28 14:10:16
衡量程序的标准衡量一个程序是否优质，可以从多个角度进行分析。其中，最常见的衡量标准是程序的时间复杂度、空间复杂度，以及代码的可读性、可扩展性。针对程序的时间复杂度和空间复杂度，想要优化程序代码，需要对数据结构与算法有深入的理解，并且熟悉计算机系统的基本概念和原理；而针对代码的可读性和可扩展性，.........【阅读全文】
发布时间：2013-04-28 09:21:56
An operating system has been a known quantity for the past several decades. It usually provided a known set of APIs which were called system calls. Yes, we did migrate to more secure operating systems with privileges. Yes, we do allow for virtualization. Yes, we do have multi threading and mu.........【阅读全文】
