此程序为潮流计算中的雅克比矩阵程序，也是潮流计算的核心部分。...

1．在选择装入背包的物品时，对每种物品I只有两种选择，即装入背包或不装入背包。不能将物品I装入背包多次，也不能只装入部分的物品I。 2．物品的种数，重量、价值，背包的容量要求输入； 3．算法中加入剪枝函数（对重量已经超过限制重量的子树不搜索）； -1. In the selection of the items into the backpack, for each of the items I have only two choices, that is loaded or not loaded backpack backpack. Items should not be many times I load backpack can not only part of the goods loaded I. 2. Number of species items, weight, value, capacity backpack for the importation 3. Algorithm to add pruning function (of weight over the weight limit does not search sub-tree)

双线性变换法无限长单位脉冲响应滤波器的设计，用到的模拟原型是切比雪夫和巴特沃斯低通滤波器。能够显示滤波器的幅频特性和相频特性曲线-bilinear transform infinite impulse response filter units in the design, use of simulation is a prototype and Chebyshev low-pass Butterworth filter. To demonstrate the filter frequency characteristics and phase frequency response curve

很经典的一个小游戏，贪吃蛇,其中有不完善之处，还请指教-tanchishe，a interesting game

板结构,满足三类边界条边,热源在外部 ,用vc++编写工程文件很大,源程序里的主函数同大家分享 -plate structure, meet three types of boundary edge, the heat outside, with the preparation of project documents vc great, The main source Lane share the same function

一个有关人事系统的所有代码和有关文件包括里面小量数据库。-A personnel system, code and databases.

功能强大的个人工作通讯录，人性化的操作界面，强大的查询功能，可以通过多种方式添加联系人照片（桌面截图、从电脑导入、或利用其他工具通过剪贴板获得）可以作为有意开发个人通讯录的爱好者作参考之用。-The work of a powerful personal address book, user-friendly interface, powerful query features, you can contact a number of ways to add photos (desktop screenshot, import from your computer, or using other tools to obtain through the clipboard) as interested in the development of personal address book lovers for reference.

Eternal Lands（永恒大陆）的地图编辑器代码！~你可以选者VC++和DEVCPP进行编译-Eternal Lands (eternal mainland) code of the map editor! ~ You can choose who VC++ And compile DEVCPP

Engineer系统是降低服务器负载，减少企业运营成本的完美解决方案。通过动态批量生成静态页面，可使企业在对外发布服务器选择上，缩减对硬件的投资，并同时降低企业的互联网接入费用。-Engineer system is to reduce server load, reduce the cost of enterprise operations the perfect solution. Dynamic volume generated by static pages, allows companies announced the choice of server, reduced hardware investment, and at the same time reduce the cost of Internet access.

一个域名价值分析工具，通过正则和字典匹配分析-domain tool

运行环境：win―tc。 能实现一下功能： 1）从键盘读入数据，分析出一个单词。 2）返回单词种别（用整数表示）， 3）返回单词属性（不同的属性可以放在不同的全局变量中）。 输入数据例： 0 92+data> 0x3f 00 while 正确结果：这些单词的单词种别及其属性 INT10 0 INT10 92 + _ IDN data > _ INT16 63 INT8 0 WHILE _ -Operating environment: win-tc. To achieve some functions: 1) read from the keyboard data, analysis of a word. 2) to return to the word of other species (expressed by an integer), 3) the return of the word attribute (the attribute can be different in different global variables). Cases of input data: 0 92+ data> 0x3f 00 while the correct result: the word of these kinds of words and their properties do not INT10 0 INT10 92+ _ IDN data> _ INT16 63 INT8 0 WHILE _