用宏和高級(jí)匯編技術(shù)實(shí)現(xiàn)類似高級(jí)語(yǔ)言中的條件分支語(yǔ)句IF功能。同時(shí),編寫一個(gè)程序證明所編寫宏的正確性。要求如下: (1).iff后的條件為“x1,op,x2”形式,其中x1和x2為操作數(shù),op為關(guān)系比較符,用g(>),l(<),e(=), ge(>=), le(<=)表示。另外,x1和x2必須是字。 (2).elsee語(yǔ)句(相當(dāng)于else語(yǔ)句)是可選項(xiàng),即iff后可以不跟elsee。 (3)條件分支iff的結(jié)束用.ifend表示.
標(biāo)簽: 匯編 技術(shù)實(shí)現(xiàn) 分支 高級(jí)語(yǔ)言
上傳時(shí)間: 2013-12-31
上傳用戶:風(fēng)之驕子
構(gòu)造一個(gè)簡(jiǎn)單程序設(shè)計(jì)語(yǔ)言的詞法分析器,要求: 1) 含有保留字program, begin, end, var, integer, if, then, else, do, while. 2) 標(biāo)識(shí)符和無(wú)符號(hào)的整常數(shù),其中保留字和標(biāo)識(shí)符不區(qū)分大小寫. 3) 含有界符和運(yùn)算符如下:+,-, (, ), =, >, <, , :, :=.,,。 4) 輸出二元組。
標(biāo)簽: 程序設(shè)計(jì)語(yǔ)言 分析器
上傳時(shí)間: 2014-01-04
上傳用戶:離殤
DESProcess FILE *mfp,*cfp int ttch=0,xorRes,ttbitdiff=0 char mch,cch float bdiff=0 if((mfp=fopen(mfile,"r"))==NULL) {cout<<"Cannot open the file to compare"<<endl } if((cfp=fopen(cfile,"r"))==NULL) {cout<<"Cannot open the file to compare"<<endl } else { while(!feof(mfp)&!feof(cfp)) { ttch++ mch=fgetc(mfp) cch=fgetc(cfp) xorRes=mch^cch ttbitdiff+=(xorRes&1)+(xorRes&2)/2+(xorRes&4)/4+(xorRes&8)/8+(xorRes&16)/16+(xorRes&32)/32+(xorRes&64)/64+(xorRes&128)/128 } bdiff=float(ttbitdiff)*100/float(ttch*8) } *bitdiff8byte=float(ttbitdiff)*100/float(8*8) return bdiff
標(biāo)簽: DESProcess ttbitdiff xorRes bdiff
上傳時(shí)間: 2016-07-02
上傳用戶:1079836864
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
標(biāo)簽: Text-Overflow the Firefox inside
上傳時(shí)間: 2013-12-18
上傳用戶:lgnf
private double PointToAngle(Point AOrigin, Point APoint) { if (APoint.X == AOrigin.X) if (APoint.Y > AOrigin.Y) return Math.PI * 0.5f else return Math.PI * 1.5f else if (APoint.Y == AOrigin.Y) if (APoint.X > AOrigin.X) return 0 else return Math.PI else {
標(biāo)簽: AOrigin APoint Point PointToAngle
上傳時(shí)間: 2016-10-31
上傳用戶:zhyiroy
private double PointToAngle(Point AOrigin, Point APoint) { if (APoint.X == AOrigin.X) if (APoint.Y > AOrigin.Y) return Math.PI * 0.5f else return Math.PI * 1.5f else if (APoint.Y == AOrigin.Y) if (APoint.X > AOrigin.X) return 0 else return Math.PI else {
標(biāo)簽: AOrigin APoint Point PointToAngle
上傳時(shí)間: 2016-10-31
上傳用戶:sunjet
private double PointToAngle(Point AOrigin, Point APoint) { if (APoint.X == AOrigin.X) if (APoint.Y > AOrigin.Y) return Math.PI * 0.5f else return Math.PI * 1.5f else if (APoint.Y == AOrigin.Y) if (APoint.X > AOrigin.X) return 0 else return Math.PI else {
標(biāo)簽: AOrigin APoint Point PointToAngle
上傳時(shí)間: 2013-12-18
上傳用戶:rocketrevenge
function [U,center,result,w,obj_fcn]= fenlei(data) [data_n,in_n] = size(data) m= 2 % Exponent for U max_iter = 100 % Max. iteration min_impro =1e-5 % Min. improvement c=3 [center, U, obj_fcn] = fcm(data, c) for i=1:max_iter if F(U)>0.98 break else w_new=eye(in_n,in_n) center1=sum(center)/c a=center1(1)./center1 deta=center-center1(ones(c,1),:) w=sqrt(sum(deta.^2)).*a for j=1:in_n w_new(j,j)=w(j) end data1=data*w_new [center, U, obj_fcn] = fcm(data1, c) center=center./w(ones(c,1),:) obj_fcn=obj_fcn/sum(w.^2) end end display(i) result=zeros(1,data_n) U_=max(U) for i=1:data_n for j=1:c if U(j,i)==U_(i) result(i)=j continue end end end
標(biāo)簽: data function Exponent obj_fcn
上傳時(shí)間: 2013-12-18
上傳用戶:ynzfm
void insert_sort(int *a,int n) { if(n==1) return insert_sort(a,n-1) int temp=a[n-1] for(int i=n-2 i>=0 i--) { if(temp<a[i]) a[i+1]=a[i] else break } a[i+1]=temp }
標(biāo)簽: insert_sort int return void
上傳時(shí)間: 2014-01-22
上傳用戶:banyou
詞法分析 1 試驗(yàn)?zāi)康? 設(shè)計(jì),編制并調(diào)試一個(gè)此法分析程序,加深對(duì)此法分原理的理解. 2 試驗(yàn)要求 1)待分析的簡(jiǎn)單語(yǔ)言的詞法 * 關(guān)鍵字: begin if then while do end 所有關(guān)鍵字都是小寫. 2)運(yùn)算符和界符: : = + * - / < <= <> > >= = ( ) # 3)其他單詞是標(biāo)識(shí)符(ID)和整數(shù)型常數(shù)(NUM),通過(guò)一下正規(guī)式定義: ID=letter (letter|digit)* NUM=digit digit* 4)空格由空白,制表符和換行符組成,空格一般用來(lái)分隔ID,NUM,運(yùn)算符,界符和關(guān)鍵字,此法分析階段通常被忽略. 3 各種單詞符號(hào)對(duì)應(yīng)的種別碼如表所示
上傳時(shí)間: 2017-01-08
上傳用戶:dongqiangqiang
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