程序的执行

• In chapter six . we introduce six types of memory , two running ways of the download program , and which is our choice . later we also discussed security the download program and the security of the main program
  第六章：对目前6类存储器的有关特性和存取方式作了个介绍，对比了两类下载程序的执行方式，以及对算法的可靠性进行了设计。
• 4 . performance improving of j2me system the author optimized the code structure first to decrease the code size . then tried to translate j2me apis into native codes and made the speed comparison
  J2me系统的性能改善作者首先用代码优化的方式来减少程序占用的内存大小，然后尝试将部分j2me的apisnative化，并比较了native化前后程序的执行速度。
• The main purposes for my performance tracing aspect is to monitor the execution of a program and give a top - down view of where the execution time is being spent as opposed to the bottom - up view you generally get with a profiler
  我的性能跟踪方面的主要目的是监视程序的执行，并给出执行时间从上到下的视图（与通常用profiler得到的从下到上的视图正好相反） 。
• Typically , the aspect won t execute code that triggers loading a class unless the class would be loaded by the program s execution anyhow ; for example , advice that references a class will be triggered when a method for that class is going to execute
  通常，方面不会执行触发装载一个类的代码，除非程序的执行总是会装载这个类，例如，引用一个类的建议在这个类要执行时会被触发。
• With the debugger , you can break , or suspend , execution of your program to examine your code , evaluate and edit variables in your program , view registers , see the instructions created from your source code , and view the memory space used by your application
  使用调试器，可以中断（或挂起）程序的执行以检查代码，计算和编辑程序中的变量，查看寄存器，查看从源代码创建的指令，以及查看应用程序所占用的内存空间。
• However , if any such execution sequence contains an undefined operation , this international standard places no requirement on the implementation executing that program with that input ( not even with regard to operations preceding the first undefined operation )
  尽管如此，如果在这个执行序列中包含未定义行为，本标准仍不会对实现以这个输入数据的这个程序的执行（不包括对第一个未定义操作之前的操作）作任何规范。
• Mobile agent is a kind of distributed computing model proposed in the middle of 1990s . by migrating between network nodes , the agent can be physically located to the needed data , so the communication cost is brought down , the network bands saved , the load balanced and the performance of the whole system improved
  移动代理是90年代中期刚刚兴起的一种分布式计算模型，目的是使程序的执行尽可能靠近数据，降低网络通讯开销，节省带宽，平衡负载，加快任务的执行，从而提高分布式系统的处理效率。
• On the foundation of analysis of dvm system , a graphic visual parallel program developing environment is designed , and with vc as the basic tool , the main function of the developing enviroment such as display the data distributed onto some processors , as well as data align , data remote access are realized
  然后，在详细分析dvm系统模型和dvm程序的执行特性的基础上，设计了图形可视化并行程序设计平台的总体结构并以vc为基本编程工具，具体实现了该平台的主要功能，图形化地显示了数据块在各处理器上的分配、数据对齐，远程数据访问等情况。
• For example , you could use metadata to describe the author and the copyright holder of a class , in which case it would have no effect on program execution ; or you could use it to describe method properties such as transactionality characteristics , which would likely modify the behavior of the method , as i ll explain later in the article
  例如，可以用元数据描述类的作者和版权所有者，这时它对程序的执行没有影响，也可以用它描述方法属性，比如事务特性，这很可能改变方法的行为，正如我在本文后面所描述的。
• As known , the visual technology has characteristics of inter - action , visualization and etc . applying it to compiling and running environments makes programs and data more straightforward to users . in the meantime , users can observe running processes and changes of data in different conditions , which decreases the difficulties and abstractions of programs " analysis , designing and debugging
  将程序的编译和运行环境可视化，可以使程序和数据的表达更加直观，用户能够静态或者动态地直接观察程序的执行过程和数据及其之间关系的变化，从而降低程序分析、设计和调试过程的抽象性和难度。