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文章/文档  1.利用I/O口产生一定频率的方波

1.利用I/O口产生一定频率的方波，驱动蜂鸣器，发出不同的音调，从而演奏乐曲（最少三首乐曲，每首不少于30秒） 2．采用LCD显示信息 3．开机时有英文欢迎提示字符，播放时显示歌曲序号（或名称） 4．可通过功能键选择乐曲，暂停，播放。 5．选作内容：显示乐曲播放时间或剩余时间 ...

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VC书籍  I have a dream that I am always young. Then I will have enough energy to do everything whenever I wa

I have a dream that I am always young. Then I will have enough energy to do everything whenever I want. Moreover, I don t have to worry about the old age during which I even can t take care of myself

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单片机开发  本简易网络导纳分析仪以C8051F020为控制和数据处理核心

本简易网络导纳分析仪以C8051F020为控制和数据处理核心，由正弦信号发生器模块、滤波和功率放大模块、I/V变换模块、导纳角测量模块、导纳模测量模块、键盘模块以及液晶显示模块组成。采用数字控制DDS芯片AD9851产生100Hz－10KHz正弦信号，经滤波和功率放大后驱动网络负载。从网络负载中提取被测量信号，输入到以真有效值转 ...

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Linux/Unix编程  I use C to implement thread operating,include initiallize,fork,yield,exit,kill. You should have driv

I use C to implement thread operating,include initiallize,fork,yield,exit,kill. You should have driver to use this library. I choose array for ready queue,and strcut for Thread Control Block.

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VC书籍  Welcome to the Wrox Press C++ tutorial "I hope you ll enjoy reading this tutorial with your portabl

Welcome to the Wrox Press C++ tutorial "I hope you ll enjoy reading this tutorial with your portable, your work, or your home PC. It s a perfect companion to the Introduction to Visual C++ 6.0 Standard Edition manual and is a proven aid to understanding the C++ language. The material in this tutoria ...

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压缩解压  Compress - SuperFast Packer v.3.0.zip

Compress - SuperFast Packer v.3.0.zip

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其他  weiifnvfn j nbfjdbnnbnbvfknvn v

weiifnvfn j nbfjdbnnbnbvfknvn v

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VC书籍  This the e-book of "programming Visual C++ .Net sixth version" I check others on your website do not

This the e-book of "programming Visual C++ .Net sixth version" I check others on your website do not contain source codes.

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Java编程  this api for java to do the network managerment of system,i like it ,so share for a

this api for java to do the network managerment of system,i like it ,so share for a

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