倒计时程序 可以自己设定倒计时时间，可运用8051单片机实现

the progran create pwm wave by msp430F149

MCS-51与数码显示器和键盘的接口，一个原理PPT文件-MCS-51 with digital display and keypad interface, a principle of PPT files

FINISH /CLEAR,NOSTART /TITLE,Modified timberlog coordinates /CONFIG, NRES, 1000000 /PREP7   ! Units used ! m, N, s, kg, Pa, m/s, m/(s^2), kg/(m^3), W  /UNITS,SI !! Define local element type !  ET, ITYPE, Ename, KOP1, KOP2, KOP3, KOP4, KOP5, KOP6, INOPR ET,1,SOLID45 ET,2,LINK8   !! Define material properties for Timber Log (Kapur-SD4)(isotropic) MP,DENS,1,750      ! Density = 750 kg/m3

matlab的第一章节学习手册,本人觉得不错,特让大家分享-Matlab the first chapters learning manuals, I think it"s good, so special to share

这是vfp的帮助文件，里面有全部的vfp的命令，函数，sql命令说明等等，对学习vfp有很大帮助 -This is the vfp help files, which have all of the vfp command, function, sql command statement and so on, are of great help in learning vfp

这是一个GRAPHCUT的一个应用，拿来和大家共享亚-GRAPHCUT of an application, and used to share Asia.

对文件进行批命名的程序 在VC。NET、XP系统下编译通过-the documents approved the naming process in the VC.NET and XP systems through compiler

编写无错C程序秘诀。使你更快的学习C编程-prepared no mistake C program secret. So the faster you learn C Programming

排序算法的性能比较 对不同类型的问题规模，测试各种介绍的排序算法的性能。统计他们的键值比较次数，键值移动次数以及运行时间并分析结果。 小型问题：N≈20 中型问题：N≈2000 大型问题：N≈200000. C 语言的32关键字如下： 实验原理： 线性表的排序，快速，起泡，选择，插入。-algorithm to compare the performance of different types of scale of the problem, introduced by the test algorithm performance. Statistical comparison of the number of keys, keys and mobile number of run-time analysis of the results. Small problem : N 20 medium-sized issues : N 2000 major issues : N 200,000. The 32 C-language keyword as follows : Experimental Principle : linear ranking table, fast, foaming, selection, insertion.

该文件较全面的介绍了鲁棒控制的相关知识，以及其设计的基本思想，对学习鲁棒控制的人很有借鉴意义，欢迎大家下载！-the document more comprehensive introduction to the robust control of the relevant knowledge, and the basic design idea Robust control for the study of a useful one, we are happy to download!