NET

说明：  实现吸尘器的控制，主要利用红外和超声传感器实现对吸尘器所处的环境的避障。(It's for the vacuum cleaner!)

this is a test upload.... let me upload it for testing purpose please.. i really want to download a file

说明：  基于stm32开发板的简单应用，LED闪烁，跑马灯及蜂鸣器的应用。(Based on the simple application of STM32 development board, the application of LED scintillation, horse-running lamp and buzzer.)

说明：  IDL遥感，roi的随机拆分，通过IDL控制，感兴趣区的随机选择操作(IDL Remote Sensing, Random Segmentation of ROI)

这是一本关于游戏服务器打包方法的介绍，在通信传输中，总也离不开打包、解包操作(This is a book about the game server packing method is introduced, in the communication transmission, also always cannot leave packing, unpacking operation )

可以用它来编辑各种各样的语言程序，大大减轻你的工作强度-Can use it to edit a variety of language program, greatly reduce the intensity of your work

VC++编写的中国象棋源码，支持悔棋功能，而且我觉得这象棋的智商相当高，玩了下竟然每次都输，可能我象棋水平太菜。本游戏源代码开源，在VC6.0下可顺利编译，游戏可选择难易程序，运行界面也挺友好，如演示截图所示。

Given N rational numbers in the form "numerator/denominator", you are supposed to calculate their sum. 输入描述: Each input file contains one test case. Each case starts with a positive integer N (<=100), followed in the next line N rational numbers "a1/b1 a2/b2 ..." where all the numerators and denominators are in the range of "long int". If there is a negative number, then the sign must appear in front of the numerator. 输出描述: For each test case, output the sum in the simplest form "integer numerator/denominator" where "integer" is the integer part of the sum, "numerator" < "denominator", and the numerator and the denominator have no common factor. You must output only the fractional part if the integer part is 0.(Input Description: Each input file contains one test case. Each case starts with a positive integer N (<=100), followed in the next line N rational numbers "a1/b1 a2/b2 ..." where all the numerators and denominators are in the range of "long int". If there is a negative number, then the sign must appear in front of the numerator. Output Description: For each test case, output the sum in the simplest form "integer numerator/denominator" where "integer" is the integer part of the sum, "numerator" < "denominator", and the numerator and the denominator have no common factor. You must output only the fractional part if the integer part is 0.)

或许大家都设计过数据库,也为表定义过主键,今天我想阐述的是,应该如何正确的设计一个主键,在以往的一些资料中,都没有提及到主键设计的原则.我为此总结了一下: -you might have designed the database, as well as table-defined primary key, and today I would like to explain is that How should correct the design of a primary key, in the past some of the information. no mention of the primary key design principle. I summarize this for a moment :

小型pascal语音编译器,包含词法分析工具FLEX和语法分析工具Bison-compiler pascal