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Description: 使用单片机的io口模拟串口，使用在串口资源不足的情况，在stc89c54rd+实验可行。-Io the use of microcontroller serial port simulation, the use of inadequate resources in the case of the serial, in stc89c54rd+ experiment feasible.
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Size: 1024 |
Author: scx |
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Description: CString 是一种很有用的数据类型。
这里面的好多函数都是自己写的，相信对你很有用。它们很大程度上简化了MFC中的许多操作，使得MFC在做字符串操作的时候方便了很多。不管怎样，使用CString有很多特殊的技巧，特别是对于纯C背景下走出来的程序员来说有点难以学习。-CString is a very useful data type. There' s a lot of functions are written in their own, I believe that is useful to you. They simplified the MFC to a large extent many of the operation, the operation of MFC in the string when doing a lot of convenience. In any case, the use of CString many special skills, especially in the context of the pure C programmers down by a little difficult to learn.
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Size: 57344 |
Author: tezl2005 |
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Description: java遗传算法程序，采用标准遗传算法求解函数的一个例子。-java genetic algorithm process, the use of standard genetic algorithm function of a case in point.
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Size: 2048 |
Author: 赵娴 |
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Description: 探讨了VB访问SQL数据库的方法及运用，并给出案例。-VB on SQL database access and use, and gives case.
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Size: 425984 |
Author: verve |
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Description: 跳频是按跳频序列随机改变一个信道所占有频道频率的技术。在GSM 系统中，可利用跳频技术频率分极和干扰分极的特点，改善网络质量。引入跳频技术，可保证在网络软拥塞不上升的情况下，频率复用度较小。-FH frequency hopping sequence is based on a random channel change in the country channel frequency technology. In the GSM system, can make use of frequency hopping technology sub-polar and polar characteristics of interference and improve network quality. The introduction of frequency-hopping technology to ensure that congestion in the network does not increase in the soft case, a smaller frequency reuse moment.
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Size: 180224 |
Author: 阿彪 |
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Description: Visual C++案例开发集锦中关于在窗口中使用多个视图类的知识-Visual C++ case highlights the development of the window on a number of view class to use the knowledge
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Size: 30720 |
Author: huangailin |
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Description: 1采用段式管理方案实施内存分配和回收。能够处理以下的情形
⑴ 随机确定内存大小，进程的个数，每个进程的段数及段大小；
⑵ 要求当某进程提出申请空间的大小后，显示能否满足申请，以及为该进程分配资源后有关内存空间使用的数据（注意回收后的合并）。-Segment management programs using a memory allocation and recovery implementation. Able to handle the case of the following determining ⑴ random memory size, number of processes, each process and above the size of a few paragraphs ⑵ requirements apply when a process space, the show can meet the requirements of the application, as well as the allocation of resources to the process relating to the use of the data memory space (Note that after the recovery of the merger).
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Size: 66560 |
Author: 鱼儿 |
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Description: 利用USB设备锁定计算机的VB程序，本例中是用U盘锁定计算机，当你要离开计算机的时候锁定计算机就显得很重要。本程序运行时会在系统托盘处显示图标，可以选择磁盘，可以设置随系统一起启动，还可以进行关机、注销、重启计算机等功能。-The use of USB devices the computer locked VB procedure, this case is U disk lock the computer, when you leave the computer to lock the computer when it is very important. This procedure will be run-time display in the system tray icon, you can choose the disk, you can set to start together with the system can also be used for shutdown, write-off, restart your computer functions.
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Size: 66560 |
Author: 105 |
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Description: C++ Builder数据库开发经典案例解析
示例程序都是在C++ Builder 6.0（Enterprise）和SQL Server 2000个人版下调试通过的，不同的版本可能存在差别。使用的操作系统是Microsoft Windows 2000(Professional)。-C++ Builder Database Development Case Study Analysis of the sample programs in C++ Builder 6.0 (Enterprise) and Personal Edition SQL Server 2000, adopted under the debugger, different versions of the differences that may exist. The use of the operating system is Microsoft Windows 2000 (Professional).
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Size: 11304960 |
Author: Tracy |
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Description: C The Complete Reference Fourth Edition
Herbert Schildt-PART I—
FOUNDATIONAL C
This book divides its description of the C language into two parts. Part One discusses those features
of C defined by the original, 1989 ANSI standard for C (commonly referred to as C89), along with
those additions contained in Amendment 1, adopted in 1995. At the time of this writing, this is the
version of C that is in widespread use and is the version of C that compilers are currently capable of
compiling. It is also the version of C that forms the foundation upon which C++ was built,
PART II—
THE C99 STANDARD
Computer languages are not static they evolve, reacting to changes in methodologies, applications
generally accepted practices, and hardware. C is no exception. In the case of C, two evolutionary
paths were set in motion. The first is the continuing development of the C language. The second is
C++, for which C provided the starting point. While most of the focus of the past several years has
been on C++, the refinement of C
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Size: 3060736 |
Author: mike |
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Description: LoadRunner操作入门，结合一个案例，介绍具体操作步骤。文档中附有操作截图，简单直观使用。-Introduction to LoadRunner operation, combined with a case on specific steps. Operation document with the screenshot, simple and intuitive to use.
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Size: 197632 |
Author: xiuguohao |
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Description: Cpp笔记
1 我们学的是符合ANSI规范的标准Cpp 有可移植性。
2 Cpp严格区分大小写，变量命名只能使用字母，数字，或下划线，第一个字母必须使用字母或下划线-Cpp Notes 1 We studied norms in line with the ANSI standard Cpp，there is portability. 2 Cpp strictly case-sensitive, variable names can only use letters, numbers, or underscore, the first letter or letters must be underlined
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Size: 56320 |
Author: grub |
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Description: 基于神经网络的文字识别系统
本目录主要包括：文档和两个源代
其中源代码是识别程序的，另一个是矩阵类库的。
已经保存了训练好的网络权值，所以第一次使用识别程序时，可以直接运行Release目录下的可执行文件，然后对图片目录中的测试图片进行读入、识别。当然也可以自行用训练样本训练网络，不过要注意训练样本的选择，否则可能识别率很低。训练样本选择的原则是，尽可能的有代表性，在训练时间不至于太长的情况下训练样本数目尽量多。-Based on neural network character recognition system catalog include: the two source documents and source code generation is to identify which procedures, and the other is a matrix class library. Training has been good to preserve the right of the value of the network, so the identification procedures used for the first time, you can directly run the Release directory of the executable file, and then on the picture of the test directory to read into the picture to identify. Of course, we can use training samples to train the network, but attention should be paid to the choice of training samples, or may be very low recognition rate. Training sample selection principle is that as far as possible representative, not too long training time in the case of the number of training samples as much as possible.
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Size: 215040 |
Author: 王飞飞 |
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Description: 一、实现 Sniffer 的基本功能。 Sniffer 是一种用于监测网络性能、使用情况的工具。
能够指定需要侦听的网卡（考虑一台机器上多张网卡的情况）
能够侦听所有进出本主机的数据包，解析显示数据包（ ICMP 、 IP 、 TCP 、 UDP 等）各个字段。比如，对 IP 头而言，需要显示 版本、头长度、服务类型、数据包长度、标识、 DF/MF 标志、段内偏移、生存期、协议类型、源目的 IP 地址、选项内容、数据内容。要求显示数据的实际含义（例如用 ASCII 表示）；
能够侦听来源于指定 IP 地址的数据包，能够侦听指定目的 IP 地址的数据包，显示接收到的 TCP 和 UDP 数据包的全部实际内容。需要考虑一个 TCP 或 UDP 包划分为多个 IP 包传输的情况；
能够根据指定的协议类型来过虑包，例如，只侦听 ICMP 包，或只侦听 ICMP 和 UDP 包。
功能验证手段：在运行 Sniffer 的同时，执行标准的 Ping 、 Telnet 和浏览网页等操作，检查 Sniffier 能否返回预期的结果。
Windows 平台上可以用 winpcap 类库；在 linux 平台上可以使用 libpcap 类库。也可以调用 Sockets 等有关的网络类库。
-First, the realization of the basic functions of Sniffer. Sniffer is a network for monitoring performance, the use of tools.
listening to the specified needs of the card (taking on a machine more than the case of card)
listening to all incoming and outgoing packets of the host, analysis shows that packet (ICMP, IP, TCP, UDP, etc.) in various fields. For example, the first of the IP, the need to show the version of the first length, service type, packet length, logo, DF/MF logo, paragraph migration, survival, protocol type, source IP address of the purpose, options, content, data内容. Requirement to demonstrate the actual meaning of data (such as that used ASCII)
listening to the specified IP address from data packet to specify the purpose of listening packet IP addresses, indicating the received TCP and UDP packets all the actual content. Need to consider a TCP or UDP packet is divided into a number of IP packet transmission of the situation
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Size: 65536 |
Author: 鲁明 |
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Description: 自己写的算平方根的函数sqrt，并且用C库的sqrt进行了验证，十分精确。可以用在没有math库的情况，尤其是嵌入式程序中。-My own function of the square root of the operator sqrt, and use C library sqrt verified, highly accurate. It can be used in case there is no math library, in particular the embedded program.
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Size: 6144 |
Author: thatguy |
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Description: 灰色按钮激活器.你可能会遇到在安装某些软件的时候要求你输入序列号之类的，如果不输入，则“下一步”这个按钮是灰色的，无法点击它，程序也就无法安装。使用这个小程序，你可以畅通无阻！但要记住，上有政策，下有对策，也可能过了今天，人家就会防止这样了。不过，它可以给你一个思路，理解了，就不怕了，什么有限制的软件在你手上都成正版的了。-Gray button to activate the device. You may have installed some software when you enter the serial number of the requirements like, if we do not enter, then " Next" button that is gray and can not click on it, the program can not install . Use this small program, you can access! But we have to remember that there have countermeasures against the policies may have today, they will prevent the case. However, it can give you an idea of understanding, it is not afraid, and there are restrictions on what software you have into the hands of the genuine.
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Size: 5120 |
Author: 621 |
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Description: Description
Scientific calculator. Allows to perform caclulation with high precicion and implements most populatr mathematical functions: sin, cos, tan, asin, acon, atan, exp, log, sqr, floor and ceil. Also it make it possible to define your own function, store results in variables and use variable sin expressions. Calculator store al formuls you have entered. Plot function can be used to draw graph of function with single argument.
More detailed description of calculator is here.
-
Notes
* Write formula using normal infix notation, for example (x^2+ y^2)/1.5. To execute statement use Evaluate command.
* Use variable to write generic formulas, by changing values assigned to the variables you wil be able to repeat calculation for all input data with minimal typing. Define your own functions which also can speedup your work and reduce probability of making an error.
* It is possible to write small functional programs using conditional ?: operator. For example sum of arithmetic progression can be calculated by the following function
sum(x)=x>0?x+sum(x-1):0
Calculator has only < and > comparison operators (because comparing floating point number for equality is any case bad idea). But it is also to check that value belongs to specified range using min<x>max operator.
* All statement you have entered and stored in database. You can select proper statement using List command. Statements are marked with three differen
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Size: 245760 |
Author: tang |
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Description: 编译通过下载后，应该观察到PC5端口上所连接的发光二极管以每秒1次的频率闪烁。
这个实例的重点除了实际使用定时器之外，更重要的是引入了软件模板的使用。
//硬件环境：ATmeg48 单片机，CPU时钟1MHz
//软件环境：ICC AVR6.3以上-Compiled after download, it should be observed that the PC5 port on the light-emitting diode connected to the frequency of 1 per second flicker. The focus of this case in addition to the actual use of timers, it is more important is the introduction to the use of software templates.// Hardware environment: ATmeg48 single-chip, CPU clock 1MHz// Software Environment: ICC AVR6.3 more than
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Size: 32768 |
Author: 芳苹 |
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Description: 代码检查工具 只要简单一些switch case的配对 以及类里面memset的使用，防止盖了虚表-A simple code inspection tool switch case some type of matching, as well as the use of memset inside to prevent the cover of the virtual table
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Size: 237568 |
Author: lionline |
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Description: PPT模板，非常经典，适合计算机答辩时候用的啊，上课的情况下也可以用的啊-PPT templates, very classic, suitable for computer time used to reply, ah, the case of school can also use the ah
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Size: 1320960 |
Author: 第六感 |
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