词法分析 1 试验目的 设计,编制并调试一个此法分析程序,加深对此法分原理的理解. 2 试验要求 1)待分析的简单语言的词法 * 关键字: begin if then while do end 所有关键字都是小写. 2)运算符和界符: : = + * - / < <= <> > >= = ( ) # 3)其他单词是标识符(ID)和整数型常数(NUM),通过一下正规式定义: ID=letter (letter|digit)* NUM=digit digit* 4)空格由空白,制表符和换行符组成,空格一般用来分隔ID,NUM,运算符,界符和关键字,此法分析阶段通常被忽略. 3 各种单词符号对应的种别码如表所示
上传时间: 2017-01-08
上传用户:dongqiangqiang
Sometimes book is hardly to reading. You can solve it through this book. and then you can easily pass all of them.
标签: book Sometimes can reading
上传时间: 2014-01-01
上传用户:aappkkee
SQL Sever2000,then COURSE DESIGN OF DATABASE SYSTEM PANORAMA
标签: DATABASE PANORAMA COURSE DESIGN
上传时间: 2017-02-14
上传用户:1583060504
In this article, I will explain how to create UDP packets and then send them to a remote server through the Internet using WinPCap for Windows. The code has been tested to work with Windows XP SP2 and Vista SP1 on Linksys routers, and on Toshiba modems connected directly to the Internet. Please note that the code here is very minimalistic, and can be greatly expanded depending on your needs. The reason I use WinPCap in this article is that it solves the issue of Winsock for Windows (XP SP2 and above) not allowing raw UDP packets to be sent (in Linux, you can just use regular sockets). With WinPcap, it is possible to specify your own source IP and source hardware addresses in packets.
标签: article explain packets create
上传时间: 2013-12-12
上传用户:x4587
TMS320_ADPCMNON(ASM).RAR SIGNAL ESTIMATE FROM PREVIOUS SAMPLES DATA -- * then COMPUTE DIFFERENCE SIGNAL
标签: ADPCMNON ESTIMATE DIFFEREN PREVIOUS
上传时间: 2017-03-01
上传用户:2404
This is a PHP search engine. It searches for text and then displays results. At the time I completed it it was the first of its kind. I spent many hours looking for something like it, but could not find anything. It searches the directory you put it in.
标签: displays searches complet results
上传时间: 2013-12-25
上传用户:dave520l
Writing JavaScript with the Snake Please read them carefully read your package then you have to write their
标签: read JavaScript carefully Writing
上传时间: 2017-04-14
上传用户:kr770906
if the method is to be made void, then it cannot have a return statement, all it can do is set the value. Your SeatReserved variable is already a global variable, so what you have in the last post will work, it is known as a set or setter method. All it does is set a value, usually these are done accross classes.
标签: the statement cannot method
上传时间: 2013-12-22
上传用户:xaijhqx
capture the image of the inpu object from the user and then detect image edge of the object
上传时间: 2017-04-28
上传用户:ANRAN
EEPROM_IIC_8x51,use for load code and read code, then you can modify the eeprom code freely
标签: code EEPROM_IIC eeprom freely
上传时间: 2017-05-01
上传用户:dave520l