共查询到20条相似文献，搜索用时 109 毫秒
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胡秀建 《宿州教育学院学报》2005,8(2):86-88,109
在系统软件编写的过程中，难免会遇到多任务系统的开发。Windows系统是我们生活中接触最多的工作平台。关于在Windows系列操作系统中的多任务程序的编写，本文从进程和线程的基本概念入手，详细讲解了多线程程序的实现方法。 相似文献
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详述了Window95／98下的多任务、多进程和多线程的含义，基于MFC的用户界面线程和工作线程的建立及终止，进程和线程的优先级问题以及多线程间的同步问题。 相似文献
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线程，又称为轻型进程(Light_weight Process)或进程元。它是进程中的一个实体，是被系统独立调度和分派的基本单位。但实际上线程不能在它们自己的地址空间中执行，它们要求一个父进程先运行。在机器上运行的每一个进程，无疑是由一些正在运行的线程组成的。一个线程可以创建和撤消另一个线程：同一进程中的多个线程之间可以并发执行。线程在进程的基础上做了改进，它的划分比进程要小， 相似文献
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本文从实例的角度出发,以模拟病毒特征为主线．详细地介绍了如何利用多进程实现程序的自我保护。通过对进程及线程运行原理的分析,重点研究进程间通信技术,最终实现程序运行的稳定。 相似文献
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袁建红 《宁德师专学报(自然科学版)》2003,15(4):389-391
Linux系统支持核心级和用户级线程,采用线程可以提高系统效率,减少系统开销.同样,用户利用线程技术也可编写出高效率的应用程序,实现多任务的并发执行. 相似文献
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Linux是一个多用户多任务的操作系统.Linux中实现了对多个进程公平、高效的调度,并不是采用单一的调度策略,而是几种调度策略有机地综合应用. 相似文献
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该文给出了用C#实现基于软构件的多任务编程方法，WindowsXP支持进程内的多线程，线程是一种线性执行并不可被打断的可调度工作单元，而构件化程序设计方法继承并发展了面向对象程序设计方法，以构件组合的方式建立应用系统。采用基于软构件的C#多任务编程新方法，不仅可以缩短软件产品的开发周期，同时也提高了系统的可靠性。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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唐芳 《读与写:教育教学刊》2008,5(6)
During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context. 相似文献