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while

while是計(jì)算機(jī)的一種基本循環(huán)模式。當(dāng)滿足條件時(shí)進(jìn)入循環(huán)，進(jìn)入循環(huán)后，當(dāng)條件不滿足時(shí)，跳出循環(huán)。while語(yǔ)句的一般表達(dá)式為：while（表達(dá)式）{循環(huán)體}。

詞法分析器的功能是輸入源程序

詞法分析器的功能是輸入源程序，輸出單詞符號(hào)。詞法分析器的單詞符號(hào)常常表示成以下的二元式(單詞種別碼，單詞符號(hào)的屬性值)。識(shí)別保留字：if、int、for、while、do、return、break、continue；單詞種別碼為1。其他的都識(shí)別為標(biāo)識(shí)符；單詞種別碼為2。常數(shù)為無符號(hào)整形數(shù)；單詞種別碼為3。運(yùn)算符包括：+、－、*、/、=、>、<、>=、<=、!= ；單詞種別碼為4。分隔符包括：,、、{、}、(、)、【、】；單詞種別碼為5。

標(biāo)簽： 分析器輸入源程序

上傳時(shí)間： 2016-07-15

上傳用戶：aig85
This discussion will attempt to outline some truths and common misconceptions about digital audio wa

This discussion will attempt to outline some truths and common misconceptions about digital audio watermarking. It will survey the intrinsic obstacles that such technology is required to overcome, shedding light on its performance criteria, compromises and limitations. while doing so, it will also survey a few common types of applications, hopefully leading to a clear understanding as to the appropriateness of such technology and its expertise within multimedia content protection.

標(biāo)簽： misconceptions discussion attempt digital

上傳時(shí)間： 2016-07-18

上傳用戶：520
在單片機(jī)上實(shí)現(xiàn)火災(zāi)警報(bào)的功能

在單片機(jī)上實(shí)現(xiàn)火災(zāi)警報(bào)的功能，程序采用while循環(huán)來做實(shí)現(xiàn)

標(biāo)簽： 單片機(jī)

上傳時(shí)間： 2016-07-26

上傳用戶：diets
不好意思

不好意思，剛發(fā)的BianYiYuanLi為詞法分析和語(yǔ)法分析，現(xiàn)在發(fā)的才是DO-while循環(huán)語(yǔ)句的翻譯程序設(shè)計(jì)（LL（1）法、輸出三地址表示）

標(biāo)簽：

上傳時(shí)間： 2016-08-01

上傳用戶：一諾88
The task of clustering Web sessions is to group Web sessions based on similarity and consists of max

The task of clustering Web sessions is to group Web sessions based on similarity and consists of maximizing the intra- group similarity while minimizing the inter-group similarity． The first and foremost question needed to be considered in clustering W b sessions is how to measure the similarity between Web sessions．However．there are many shortcomings in traditiona1 measurements．This paper introduces a new method for measuring similarities between Web pages that takes into account not only the URL but also the viewing time of the visited web page．Yhen we give a new method to measure the similarity of Web sessions using sequence alignment and the similarity of W eb page access in detail Experiments have proved that our method is valid and e幣cient．

標(biāo)簽： sessions clustering similarity Web

上傳時(shí)間： 2014-01-11

上傳用戶：songrui
For developers using FPGAs for the implementation of floating-point DSP functions, one key challen

For developers using FPGAs for the implementation of floating-point DSP functions, one key challenge is how to decompose the computation algorithm into sequences of parallel hardware processes while efficiently managing data flow through the parallel pipelines of these processes.

標(biāo)簽： floating-point implementation developers functions

上傳時(shí)間： 2013-12-16

上傳用戶：tonyshao
If you d like to create web-based applications easily, then this book is for you. More importantly,

If you d like to create web-based applications easily, then this book is for you. More importantly, it shows you how to do that with joy and feel good about your own work! You don t need to know servlet or JSP while your productivity will be much higher than using servlet or JSP directly. This is possible because we re going to use a library called "Tapestry" that makes complicated stuff simple and elegant.

標(biāo)簽： applications importantly you web-based

上傳時(shí)間： 2016-09-29

上傳用戶：宋桃子
This book is for you if You re no "dummy," and you need to get quickly up to speed in intermediate

This book is for you if You re no "dummy," and you need to get quickly up to speed in intermediate to advanced C++ You ve had some experience in C++ programming, but reading intermediate and advanced C++ books is slow-going You ve had an introductory C++ course, but you ve found that you still can t follow your colleagues when they re describing their C++ designs and code You re an experienced C or Java programmer, but you don t yet have the experience to develop nuanced C++ code and designs You re a C++ expert, and you re looking for an alternative to answering the same questions from your less-experienced colleagues over and over again C++ Common Knowledge covers essential but commonly misunderstood topics in C++ programming and design while filtering out needless complexity in the discussion of each topic. What remains is a clear distillation of the essentials required for production C++ programming, presented in the author s trademark incisive, engaging style.

標(biāo)簽： intermediate you quickly dummy

上傳時(shí)間： 2014-01-09

上傳用戶：wpwpwlxwlx
1. 本程序使用一個(gè)定時(shí)器和任意 2 個(gè) I/O 口模擬一個(gè)串行口。 2. 1位起始位

1. 本程序使用一個(gè)定時(shí)器和任意 2 個(gè) I/O 口模擬一個(gè)串行口。 2. 1位起始位，8位數(shù)據(jù)位，1位停止位。發(fā)數(shù)據(jù)位時(shí)先發(fā)低位。 3. 支持半雙工通訊。收、發(fā)波特率相同。 4. 應(yīng)把定時(shí)器中斷優(yōu)先級(jí)設(shè)置為最高級(jí)。 5. 本程序每接收一個(gè)字節(jié)后就把它放到一個(gè)隊(duì)列緩沖區(qū)中(也可使用環(huán)行緩沖區(qū)), 待緩沖區(qū)滿后，將緩沖區(qū)中的內(nèi)容原樣發(fā)回。這是為了測(cè)試多字節(jié)連續(xù)收發(fā)的能力和簡(jiǎn)化程序。實(shí)際應(yīng)用中應(yīng)防止緩沖區(qū)溢出。 6. 由接收轉(zhuǎn)換到發(fā)送時(shí)要先調(diào)用 soft_send_enable ()；由發(fā)送轉(zhuǎn)換到接收時(shí)要先調(diào)用 soft_receive_enable ()。 7. 發(fā)送最后一個(gè)字節(jié)后如果要立刻轉(zhuǎn)為接收，必須等待最后一個(gè)字節(jié)后發(fā)送完畢 while ( rs_f_TI == 0) // 等待最后一個(gè)字節(jié)發(fā)送完畢

標(biāo)簽： 程序定時(shí)器串行口模擬

上傳時(shí)間： 2016-10-22

上傳用戶：tonyshao
精致、漂亮、實(shí)用的日歷選擇代碼

精致、漂亮、實(shí)用的日歷選擇代碼，Calendar is a Javascript class that adds accessible and unobtrusive date-pickers to your form elements. This class is a compilation of many date-pickers I have implemented over the years and has been completely re-written for Mootools. I have tried to include all the features that have been most useful while streamlining the class itself to keep it as small as possible. Use the links below to see what features are available in Calendar and how it might enhance the accessibility, usability and validation of form elements on your website.

標(biāo)簽： 代碼

上傳時(shí)間： 2014-01-04

上傳用戶：cc1

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