一.TCP/IP代表传输控制协议/网际协议，指的是一系列协组。　　可分为四个层次：数据链路层、网络层、传输层和应用层。在网络层:有IP协议、ICMP协议、ARP协议、RARP协议和BOOTP协议。在传输层:中有TCP协议与UDP协议。在应用层:有FTP、HTTP、TELNET、SMTP、DNS等协议。　　TCP和UDP...

批处理(Batch)，也称为批处理脚本。顾名思义，批处理就是对某对象进行批量的处理，通常被认为是一种简化的脚本语言，它应用于DOS和Windows系统中。批处理文件的扩展名为bat。目前比较常见的批处理包含两类：DOS批处理和PS批处理。PS批处理是基于强大的图片编辑软件Photoshop的，用来批量处理图片的脚本；而...

 解决办法：1.关闭项目2.打开xprojiect右键打开包文件3.搜索:PROVISIONING_PROFILE相关删除了...

Designadatastructurethatsupportsthefollowingtwooperations:voidaddWord(word)boolsearch(word)search(word)cansearchaliteralwordoraregularexpressionstringcontaining...

Giventwoarrays,writeafunctiontocomputetheirintersection.Example:Given nums1 = [1,2,2,1], nums2 = [2,2],return [2].Note:Eachel...

Youaregivenanintegerarraysortedinascendingorder(maycontainduplicates),youneedtosplitthemintoseveralsubsequences,whereeachsubsequencesconsistofatleast3consecutiv...

Givenasortedarray,twointegers k and x,findthe k closestelementsto x inthearray.Theresultshouldalsobesortedinascendingorder.If...

  Initially,thereisaRobotatposition(0,0).Givenasequenceofitsmoves,judgeifthisrobotmakesacircle,whichmeansitmovesbackto theoriginalplace.Themovese...

Givenalistofnonnegativeintegers,arrangethemsuchthattheyformthelargestnumber.Forexample,given [3,30,34,5,9],thelargestformednumberis 9534330.Note:There...

Startfrominteger1,removeanyintegerthatcontains9suchas9,19,29...Sonow,youwillhaveanewintegersequence:1,2,3,4,5,6,7,8,10,11,...Givenapositiveinteger n,younee...

Givenanarrayofintegers,1≤a[i]≤ n (n =sizeofarray),someelementsappear twice andothersappear once.Findalltheelementsthatappear ...

Givenaninteger,writeanalgorithmtoconvertittohexadecimal.Fornegativeinteger, two’scomplement methodisused.Note:Alllettersinhexadecimal(a-f)mustbeinlowe...

Givenscoresof N athletes,findtheirrelativeranksandthepeoplewiththetopthreehighestscores,whowillbeawardedmedals:"GoldMedal","SilverMedal"and"BronzeMeda...

Givenastringwhichcontainsonlylowercaseletters,removeduplicateletterssothateveryletterappearonceandonlyonce.Youmustmakesureyourresultisthesmallestinlexicographic...

Givenanintegerarraywithnoduplicates.Amaximumtreebuildingonthisarrayisdefinedasfollow:Therootisthemaximumnumberinthearray.Theleftsubtreeisthemaximumtreeconstruct...