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對(duì)PL0原編譯器進(jìn)行了以下的擴(kuò)充：1.增加以下保留字else(elsesym), for(forsym),to(tosym),downto(downtosym),return(returnsym),[(lmparen),](rmparen) 2.增加了以下的運(yùn)算符：+=(eplus),-=(eminus),++(dplus),--(dminus) 取址運(yùn)算符&(radsym),指向運(yùn)算符@(padsym) 3.修改單詞：修改不等號(hào)#為<> 4.擴(kuò)充語句：(1)增加了else子句 (2)增加了for語句 5.增加運(yùn)算：(1).++運(yùn)算 (2).--運(yùn)算；(3).+=運(yùn)算 (4).-=運(yùn)算；(5).&取址運(yùn)算； (6).@指向運(yùn)算； 6.增加類型：(1).增加多維數(shù)組a[i1][i2][i3]……[i(n-1)][i(n-2)][in] (2).增加指針類型(任何變量都能存放指針，但不支持指針的指針，如b:=@@a應(yīng)該改寫為c:=@a,b:=@c) 7.將過程procedure擴(kuò)展為函數(shù)：(1).允許定義過程時(shí)在其后加參數(shù)(var a, var b,……..,var n) (2)允許通過指針向函數(shù)形式參數(shù)傳地址；(3)允許返回值；可以用 a:=p(a,b,c….,n) 返回
標(biāo)簽： downtosym returnsym elsesym downto
上傳時(shí)間： 2016-07-02
上傳用戶：saharawalker
實(shí)現(xiàn)中斷復(fù)制功能. 除非輸入i(I),否則會(huì)在屏幕上顯出輸入的字母或字符值. 以end結(jié)束. 具體解釋見源程序.
上傳時(shí)間： 2013-12-10
上傳用戶：erkuizhang
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.
標(biāo)簽： infect files everything smaller
上傳時(shí)間： 2016-07-08
上傳用戶：mpquest
ＡＳＰ個(gè)人聊天系統(tǒng) 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"
標(biāo)簽： MenuSwf case TopMenu select
上傳時(shí)間： 2016-07-11
上傳用戶：lht618
This my first program that I learn QT, I think if you run it and then you will learn many thing
標(biāo)簽： learn you program first
上傳時(shí)間： 2013-12-31
上傳用戶：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
標(biāo)簽： metaprogramming you template excited
上傳時(shí)間： 2016-07-20
上傳用戶：gundamwzc
thanks a lot! if you have somg questions ,please ask me!
標(biāo)簽： questions thanks please have
上傳時(shí)間： 2014-01-13
上傳用戶：asddsd
this file is the second development sofuware of AutoCAD,if you use it you will find it very helpful for you.
標(biāo)簽： development you sofuware AutoCAD
上傳時(shí)間： 2013-12-29
上傳用戶：王楚楚
Private Sub cancel_Click(Index As Integer) Unload form1 End Sub
標(biāo)簽： cancel_Click Sub Private Integer
上傳時(shí)間： 2016-07-27
上傳用戶：epson850
使用LR分析法對(duì)于if條件語句進(jìn)行解釋，并生成3地址碼的代碼，編譯程序課程設(shè)計(jì)時(shí)會(huì)用到
標(biāo)簽： 分析法
上傳時(shí)間： 2016-08-02
上傳用戶：阿四AIR
蟲蟲下載站版權(quán)所有 京ICP備2021023401號(hào)-1
