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注:1.这篇文章断断续续写了很久,画图技术也不精,难免错漏,大家凑合看.有问题可以留言.      2.论坛排版把我的代码缩进全弄没了,大家将代码粘贴到arduino编译器,然后按ctrl+T重新格式化代码格式即可看的舒服. 一、什么是PWM PWM 即Pulse Wavelength Modulation 脉宽调制波，通过调整输出信号占空 ...

This Unix C code monitors a web server every few minutes by trying to retrieve its home page. It sends you email when it can t connect, and every so often while the server is still down. It sends a final message when it comes back up. If you have email paging, just direct the email to your pager add ...

Library of C functions that allows a program to use WinSock 2 functionality if it is available or fall back to WinSock 1.1 if it isn t.

MP3播放器： 利用API函数[mciSendString]可以轻松实现MP3音乐文件的播放。下面这段程序实现了MP3播放的大部分常规操作，对其稍加修改，做一个100KB大小的MP3播放器轻而易举 启动VB程序，在窗体上放置6个命令按钮，三个标签，一个公用对话框、一个进度条、一个状态栏和一个计时器，窗本的布置请参考附图 按钮"Open MP3 File" ...

华为 Quidway 系列多协议路由器，支持 PPP、FR、X25、SLIP、HDLC 等网络协议，用户可通过各种广域网线路接入 Internet 及互联互访。 路由器内置安全防火墙、NAT、RADIUS 安全认证，以及 CALL BACK 等多项互联安全防护功能；并通过 CA 认证协议的验证和 IPSec 隧道协议，在 Internet 上构建安全可靠的网络通道，基于硬件的数 ...

This code implements the basic functions for an I2C slave device using the SSP module. All I2C functions are handled in an ISR. Bytes written to the slave are stored in a buffer. After a number of bytes have been written, the master device can then read the bytes back from the buffer.

Copyright&copy 2004 Sergiu Dumitriu, Marta G&icirc rdea, C&#259 t&#259 lin Hri&#355 cu Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invar ...

OXCC is a multipass, interpreting C compiler with several language extensions. It generates an Architecture Neutral Format (ANF) output and comes with a couple of example back ends. Programmers are expected to write additional back ends for their specific needs.

呵呵，交大网络作业；可靠的数据传输，go back to N；呵呵，错过了就可惜了

刚才兴起试用了一下opera的语音控制功能，插上mic，在opera的语音控制里面选择性别，点确定就可以用了。 对着mic，并按下语音控制键，说出back，opera果然后退了一页，哈哈！以后连手都不用了。靠嘴就成。 不过这E文的发音可要好好锻炼一下了。 ...