基于UDP實現E-Mail傳輸 工作過程描述: 客戶端描述: 1. Client(以下簡稱C端)端將郵件以規定的大小封裝為符合要求的UDP包。 2. 將封裝好的UDP包發出,并等待Server(以下簡稱S端)端收到相應的UDP包后返回的回應Acknowledge(以下簡稱為ACK)。若收到的為Positive ACK,則繼續發包;若收到的為Negtive ACK,則將應發的包重發。 3. 直到C端將所有要發的包都發完,并都已經收到S端的回應,最后發一個End包,直接關閉此進程。 服務器端描述: 1. S端啟動服務進程,并監聽相應端口。 2. 若收到C端發出的有關請求,按如下情況給出相應的反映: a. 將收到的包進行檢測,若收到的包有錯則拋棄(discard),并發給C端一個negtive ACK。 b. 將收到的包進行檢測,若收到的包正常,則將此包進行解包,將內容輸出至一臨時文件;并發給C端一個positive ACK。 3.依次收到來自C斷的包,直到收到end為止,并關閉此進程,轉回監聽狀態。
上傳時間: 2014-12-08
上傳用戶:sxdtlqqjl
用宏和高級匯編技術實現類似高級語言中的條件分支語句IF功能。同時,編寫一個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,op為關系比較符,用g(>),l(<),e(=), ge(>=), le(<=)表示。另外,x1和x2必須是字。 (2).elsee語句(相當于else語句)是可選項,即iff后可以不跟elsee。 (3)條件分支iff的結束用.ifend表示.
上傳時間: 2013-12-31
上傳用戶:風之驕子
構造一個簡單程序設計語言的詞法分析器,要求: 1) 含有保留字program, begin, end, var, integer, if, then, else, do, while. 2) 標識符和無符號的整常數,其中保留字和標識符不區分大小寫. 3) 含有界符和運算符如下:+,-, (, ), =, >, <, , :, :=.,,。 4) 輸出二元組。
上傳時間: 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
標簽: DESProcess ttbitdiff xorRes bdiff
上傳時間: 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
標簽: Text-Overflow the Firefox inside
上傳時間: 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 {
標簽: AOrigin APoint Point PointToAngle
上傳時間: 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 {
標簽: AOrigin APoint Point PointToAngle
上傳時間: 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 {
標簽: AOrigin APoint Point PointToAngle
上傳時間: 2013-12-18
上傳用戶:rocketrevenge
This utility has two views: (a) one view that will show you the entire PnP enumeration tree of device objects, including relationships among objects and all the device s reported PnP characteristics, and (b) a second view that shows you the device objects created, sorted by driver name. There is nothing like this utility available anywhere else.
標簽: enumeration utility entire devic
上傳時間: 2013-12-17
上傳用戶:zjf3110
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
標簽: data function Exponent obj_fcn
上傳時間: 2013-12-18
上傳用戶:ynzfm