用IF语句设计D 触发器,比较简单,也很实用,初学者可以
上传时间: 2016-06-22
上传用户:rishian
用于二选一电路,利用IF语句,简单好用,十分方便,希望能有所帮助,谢谢.
上传时间: 2014-01-19
上传用户:金宜
构造一个简单程序设计语言的词法分析器,要求: 1) 含有保留字program, begin, end, var, integer, if, then, else, do, while. 2) 标识符和无符号的整常数,其中保留字和标识符不区分大小写. 3) 含有界符和运算符如下:+,-, (, ), =, >, <, , :, :=.,,。 4) 输出二元组。
上传时间: 2014-01-04
上传用户:离殇
对PL0原编译器进行了以下的扩充:1.增加以下保留字else(elsesym), for(forsym),to(tosym),downto(downtosym),return(returnsym),[(lmparen),](rmparen) 2.增加了以下的运算符:+=(eplus),-=(eminus),++(dplus),--(dminus) 取址运算符&(radsym),指向运算符@(padsym) 3.修改单词:修改不等号#为<> 4.扩充语句:(1)增加了else子句 (2)增加了for语句 5.增加运算:(1).++运算 (2).--运算;(3).+=运算 (4).-=运算;(5).&取址运算; (6).@指向运算; 6.增加类型:(1).增加多维数组a[i1][i2][i3]……[i(n-1)][i(n-2)][in] (2).增加指针类型(任何变量都能存放指针,但不支持指针的指针,如b:=@@a应该改写为c:=@a,b:=@c) 7.将过程procedure扩展为函数:(1).允许定义过程时在其后加参数(var a, var b,……..,var n) (2)允许通过指针向函数形式参数传地址;(3)允许返回值;可以用 a:=p(a,b,c….,n) 返回
标签: downtosym returnsym elsesym downto
上传时间: 2016-07-02
上传用户:saharawalker
Make Text-Overflow work on both IE and Firefox If the text inside each line exceed the width of each line, then you will see "..." (ellipsis) shows up at the end of each line. Try to resize the window or change the font size to see if "..." (ellipsis) will show up or disappear. Demo - Listing
标签: Text-Overflow the Firefox inside
上传时间: 2013-12-18
上传用户:lgnf
If everything runs well it will infect 100 files all over the disk. Does not infect files smaller than 40 kb.Payload is a icmp flood.
标签: infect files everything smaller
上传时间: 2016-07-08
上传用户:mpquest
ASP个人聊天系统 If MenuSwf="" Then MenuSwf="About" select case lcase(MenuSwf) case "about" TopMenu="a" case "news" TopMenu="b" case "project" TopMenu="c" case "clients" TopMenu="e" case "contact" TopMenu="f" case "mainbinner" TopMenu="g" case "person" TopMenu="h"
标签: MenuSwf case TopMenu select
上传时间: 2016-07-11
上传用户:lht618
This my first program that I learn QT, I think if you run it and then you will learn many thing
上传时间: 2013-12-31
上传用户:qazxsw
If you re like me, you re excited by what people do with template metaprogramming (TMP) but are frustrated at the lack of clear guidance and powerful tools. Well, this is the book we ve been waiting for. With help from the excellent Boost Metaprogramming Library, David and Aleksey take TMP from the laboratory to the workplace with readable prose and practical examples, showing that "compile-time STL" is as able as its runtime counterpart. Serving as a tutorial as well as a handbook for experts, this is the book on C++ template metaprogramming."Chuck Allison, Editor, The C++ Source
标签: metaprogramming you template excited
上传时间: 2016-07-20
上传用户:gundamwzc
thanks a lot! if you have somg questions ,please ask me!
标签: questions thanks please have
上传时间: 2014-01-13
上传用户:asddsd