《C语言面试题大汇总》题集.docx

《《C语言面试题大汇总》题集.docx》由会员分享，可在线阅读，更多相关《《C语言面试题大汇总》题集.docx（99页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、EddyOuAi1 j 0%d2i,aAAUnofE%daAi)d0AuQdoAU-d2ia2EAiE%djda6AE%OaA-DedaE16A: MO+aAEOb 6eE%OaAi)f-Au-OUo_EyAUdy6AOa16aAE-a6Apf-.AupA%d2+aAi)-i(l02aOAp !6E%OaAi,j(IO6u6DDade2E-?(l0NddUI-di6o_EyAUEbdEE9OUA,6N-IaAU(IV4Tdad,df-AuMA%d2iaAi-10ACid%d2iaAipAx-rE-dVEdddAextern10l4uxdEe1udAdydAI-IA/itj-EAdydAAodU

2、I lAziljODEuAiLiAEd+aAff-tUT AaQ.d+aDf AE-AQA OU+adeyEUaazi-E9,uAa6AextemE56dydAE-WUTAa-5AEf-iNuMAzfi6-AQA 。土 de 。32在/寸0。Ar/d 出。 壯”3遅%。士ii 志2”应ddrd区。志士洲豆CiA%biir|JA 館 A%“D哈2 A 我57Edd-OU2f-pACiAm)dDddstaticDiEAEuA-rf-.AuE%daAi EOOOU2f-pACIA,41)dDEuA4-f-AupAE%OaAi-.QoiaEQadDOAUdDddCIA*4|5dD,|l OTaAij3

3、36dp-TEA-Vid2a3d7.4j0QeD，36lAAD uAepAEa3dAUEY#include int main(void)(int a,b,c,d;a=10;b=a+;c=+a;d=10*a+;printf(,b-ic-do%d-%d-%d,-ib-c-d;return 0;)zd10-12-il205j0staticE%daAi6e7EdfMAE%daAi,6DE2A0d4Static%d2taAioLEdf%O2i 土孤 6e) 仔 ACOztaqstatic0- EyOeWf EyODE2AxQ0dzd: 1) E%OaA(fa2aAi, )p AEp A4-O0OU1 U

4、OOstatic %I 13EAE%2Hp AE%OaAi,iE%OaA%Ei%IE%2i-.%2i-E%OaAi|dEd2E%2i-V2EjOaoEQOu.o33rMd4dOIDd6E(addlAVi|)xe3EE-%2HpAE%OaA;OUj-r1dOlA*4|jOD(|I4EQ6DD|jAi(l0%2i-.E%OaAiOdiPOAEEax4-6A6d-wG(W0A, AaA 決 A01A跡AU6DDrdUHOd 3IDopAEaEuOlAmjOD2AUEI6AEui6EOU%2i-E%OaApAx+6A6d%0lI6uddOiAi)AU-dA0iaAOziA%t)AUpAEy16A-i

5、負 eoou AaoU 侬EuOlAODOyd (1612) dddEI OidEdd，3d-. N%d24aAiAaia%2i-aAi06E1AaAEEupAsx0E/iA+aAEEup AEu ae 疋。( N 巨%。士 iiA 晨 A土扑%2366。,入土宣叩 Ax-? OAdofiiidAEEupAEdA (ii3) static0-EydeWf 0-Eyx4-OAdd2H,ddU%iA4|)iddUp耳O lAODEdAp A0- EyO： AEp A4-iaAU Ey(staticAUEyOAOUp+QlA/ilDdDEpAri da;(ddUi)EdUp+odiA14|jd Of

6、aEdApAEyOI AOUd5df iAl/it)dDEpA4-daE1dAdaDo-EypAd iA4tjdaou0- da.df.iA%bxUEIEiiEd:staticE%O+aAi,deWI pAE%d+aA6DE2AzQ0dostaticE%O+aAi,O36E-di-Ad1dU2EaEuiA,/4|jpdaOD+dydA;static%d2i)aAofwf-%O2iaAdDE2A0dstatic%d2i)+aAd36EI4-dl-IAdldA%YEidla1udpstatic0- EydeWf-0- EyODE2A05static0巨 yOUAiy田。D06Dd、r 用。fb 巨

7、 yOUA 晨 6p+6A0DiT0dY%。)寸-l陸QeEy%YzaedUOU- 1NODj7i0EedDddlAEpA-rI( Oatypedef union long i;int k5;char c; DATE;struct data(int cat;DATE cow;double dog; too；DATE max;Oo6i%a printf(,%d,sizeof(struct data)+sizeof(max);pAOzDDV2a,uEQ-524,l4pa:0dstruct6eunion.(OaI4UT，OU32iU2E4-EI)zdDATEEQO,dunion, 土aA6A力时.

8、AiAaexi opAaAAaDIEQint5, 0%6A20,0x00. EudOEiip A 6Dj 20. dataEQOstruct,6&人。%6AOATaint4 + DATE20 + double8 = 32. EiiOOaEQ 20 + 32 = 52. pE.OUA 16Ia*4-?E-riA, intEAUEQ2xOU,AQAa*uEQ int2 + DATE10 + double8=208 i0(HOADIO6DE2A 09Oo60lE3d9,0 3oIAAD uAepAEa36AUEY#include int inc(int a) retum(+a); int multi

9、(int*a,int*b,int*c) return(*c=*a*b); typedef int(FUNC l)(int in);typedef int(FUNC2) (int*,int*,int*);void show(FUNC2 fun,int argl, int*arg2)(FUNCI p=&inc;int temp =p(argl);fun(&temp,&arg 1, arg2);printf(,%dn,*arg2);)main()(int a; /%O2/,aA,aia0;show(multi,10,&a);return 0;)zdl 101 Oi0edd3dlAAae uAeODp

10、AEiiOD 6 (IaA2Xdp p A0/)EpA4-t,d0iAuAeE?oNd1dxduzp,Dd-fe9ioabcdip1Ddo6aIai0dcbai#include*string.hHmain()(char*src=Mhello, world,;char* dest=NULL;int len=strlen(src);dest=(char*)malloc(len);char* d=dest;char* s=srclen;while(len!=0)d+=s-;printf(*%s*,dest);return 0;衽。ld126D4dn6;int main()(char* src = h

11、ello,world”;int len = strlen(src);char* dest = (char*)malloc(len+l);/dT-OAad6Ol4a char* d = dest;char* s = &srclen-l; /djdxi06dsoxd uwhile( len != 0 )* d+=*s;* d = 0;i220a%6、1printf(H%sn,dest);free(dest); / EAfefidlp+EfAO/iafdOAadPEAUxDA dest = NULL; / AOuEudereturn 0;)为J2。(”dD)油(aAae靠d%&DA白,B.) 2由#

12、include #include main()(char str=hello, world;int len=strlen(str);char t;for(int i=0; i6M E16AMAIDj0- Ey,dUC6iNddDd：OAE2A Epid,dUC+dD6：6A E2AXEpiO?c6 A。的0 莊C+6 A inline12.0土为6A 为6A力DAA車如 AdxeA A-32Ex-tE2A ?PPPpap Vix aA-!O13. OEel0OApAEQE2A,/6 。?V5为知14.voip(Il46AAEADD-de?H.323D-Oe 0j 0SIPD-dei 0Skyp

13、eD-Oe; 0H.248IMGCPD-de1 S.EiaEOI/idDAQDQdOAa?DOeOipPlAUp A2aEOfaEO0- EyAUf-.0- EyU16.tA山印AiAMAq却力6加6060 修!1陞%田卩AAc/qSife3却区?徐田力皿17.unsigned char *pl;unsigned long *p2;pl=(unsigned char *)0x801000;p2=(unsigned long *)0x810000;QeIEpl+5=;p2+5=;守二0x801005(加 6U%6 由5)0x810014(Iap 6ul4OEI20i);NjOnla:21 .Et

14、hternet A卩 VilnternetOAp OOIAAQ D-Oe? DA. HDLC;B.ARP;C.UDP;D.TCP;E.ID22.Eo6ul0Ag2aD-OepAEQ:( B C)A. TCP;B.IP;C.ICMP;D.X.2523.WindowsIup-?(EuO2EEQ:(C)A. OAil6AD;B.d,A?INd;C.iul0(l6AD;D.iui0EIP PHONE6VoIP凯方 AcOUIP%前EI|dA Oxe- i 在yxO- 雹1/i QeIEIAAs3IDddDE2A no?/iE6,2Eau+%O-AfEQof-,y6id6N,E6Ea-(l66id6Ey

15、%Y10DDN1E6aAe，：Af,Eo6oN OaD6iO6Ey%YozIPpEia0D-OeV20DD oou,%-yIPl0A90NEy%Youid1uAfor(k=0;ki)EjVDAAipAiOpaEQDAAiEUKEif-BODia1 oADAAipAQ+ABdD.A+ado14dDAAipAAeiDd-.+adUi)aADAdMin-duf,oEEddEaedaAiDAAi-3E+%pI iAtC|jA|Li 力5d：dAj32.AD%U5OdddEIpAp?0DAdpin瓦AOOd-bifii 土靛:口 士冶。 B-bifii土Mrxad 田。6 力 Dj 士隨。ddA;0力

16、Dj土iiErdA|)injiox-2e|ndao6V2Dij0joEy-foijoadep9oji0joo63dip。圧i 土隨。A 3 qiO巨如土i C i。)6 A行0)j g。j 土卩巨for(j=0;j250;j+)for(i=0;i60;i+)ai|jk=O;zd: NN-6i%aAUfadIA2. #define Max_CB 500void LmiQueryCSmd(Struct MSgCB * pmsg)(unsigned char ucCmdNum;for(ucCmdNum=();ucCmdNum03iAU|4AddO DDpOa,d2EQ03iAUpAi,E|j03ix

17、-?ia6p6DxEOzpAu%pI/03i。%此巨。2. ，DDrJ6,6%03inA 脏罰 B31。%。白Odd(3)6卩6ex白。为03i6。6卩6。(!囚6,阴即1-1m寸26卩6)13宣。中巨 。AlEAE6OU03IpAxEO.(4)IpI3iaiu06UT4-d3 iul603iE-i6E6ulMn%daiad OAaI0EdxEd-pV4OAIpPp AaIuA-rlO 6OU , o3 IuiB3IEp AyM j 4. 2箱。”d:EE1H2aEdidfeE/i0fd66u/E-?2aEOooUoD2aEdoioxD2aEO3He 叩 GestackiaiVltgf6: H

18、eap 它 0N -stackEOj Stackp 。占Ux+ipi3x。 OA科包 lHeap位p。%这。(。爲/密从Stack 。ii6DiPr Heap CU6P AxOOEae 0CODpAmalloc-Ey-OAapAAUaeOadU(INEi,C+OD(|d6：pAEQnew2Ux-r-ui4DdOUlaOeEUItOlaAi0I EyOAaAUae(OUOEI0DD,(；d3iDddEDD,y3iOD- E6AEPIEypApYO2OUOEWDD4WindowsiApAAUae 应 C 氏。UAipA配OO3,UAi8i IA32IA|uAOO3。圧切。3(4k)厶%*。3 A館

19、旅603(4m )0i掰90A6aAi,-iE?oidO3ddid0 pAxidDEQE2A p04diO pAQdidpYddd-OidpYdd(I|j-EuAQdjdHdjd6paE%IEQ-36idpAM0 lOOUIA32ODd126D(aEUOOoiz66Ai-i0MAUoEi-i, fyy-rdAAAf-idringBp/ringOf-iODrdringBplringOf-iEevmSbpEpEHE91udieEA3iDddDd56EpAydEDD-.2AUdEDDAV2idjinwinampdNud AUiadioziU-d6NuEpididAAUzaed3EadE%dd-xd3

20、aaAi,2eddxoU%a+u.FindWi ndowJ承託rD土eG%)a % A%D6xC2Gf, 12kA .12E9i!60Ei14uAipAiid：EAEudDpAai-a3Ebj- diViiiAIxOSetWindowsHookEx14 3 C也包入 我。d仔A，6 A% 6D仔A X) A日莊1d：idyAAi濁% 位qd洲Nsqi|aA%-oir 任d。旅 Acc/ddijA2 頷-j土豆de6mDD-ti dddEDDdzi6dd06dudEDDEU(IEEp(IAd DDSQLi.rUa15TemplateODE2A l0p aiE2A TddA:Template疋dd

21、AAcd。包哨0TjjAAaH土豆D”i!篇五阳(士常ijaAm pldAQaD pAAaf-EyAU1(aHpAdAdU9dadeE2ia10pAAaDfE, OATemplate.AoaO4-dadAdUSTLdDpAEY-r,Ea-,|liu u4-pEdd*4oAoaOaa3i.(C+pAtemplateEQEplddUiaEei4ofQIEeEV2Eei4/EdDpA,0ui templateAUE|dIO3eI6oIDAEpAaoiHEtemplate,AU6DDp0 AO, uAeAdOI)161XWindows DNAla OAe OaDX3oswapx-iy p AI0|ja

22、of6Apaj z3:Windows Distributed interNet Application ArchitectureWindows2% 直为 6 心 A% 赳圧 windowsDN A色 QCE 厂% ”D AO FBEEO；DOEIOn 決%。%ipAi)d1/4U-E%AU13adp0IU%dEyxdEn%-ipPpAdApaiWindows DNAEpU6,6%InternetMd/Hfi 圧CIOAOU% 巨即 APCAE)i%科 2c%-3eou0用即 AiaA6AG2%6为%出位.旅。,加 笹%圧(11A。心它mM笈日於i17. l0A?a3idDEe1/i2Ezd#d

23、efine swap(x, y)x = x + y;y = x-y;0 |)in-?-E,dA(Ia103i6e(IaiB3i-.QeiEdDE2AQ0+d3:1 )%03iOxd%03 馆03nA。相田 j xd%03闻 ,为031 厳%。%句 NIO|jA/OiEyE-i2)iB3Iia(ldOe103i(0NOHB3iEQdidju,4OOu6edDDiapAiAAl-Eui,EdO。计r%03nA比迪。iB3ii2iffiy%Yr|j6|LE)x6%O(jj%a-|DAAcNADD) dADjA!4OBB3iDdpA200iaBDdOEDDDAEoflQ6!fiV4aiIB3iof03

24、iOUE,6AEi6D6AE|uaoiB3iODDiaiuDjp2Au6UxEO1UAiof+nl0Vi03iOyIaiIE-iB3iEEoi6udUSMPu-rEidEDD003iOdEdOi9u7E4-Q- O/EjX = X - y;2. EyxeaN-zae-AAlOAN-1 .oEyf-aODAoEyOO. O 1 jD Ofi0- Ey-OO36 O0, AfiyxO.EV4a/O(lfe0Deiao NfSrfeyO-Dff0int do_dup(int a,int N)己:int do_dup(int a,int N) /I%-p4-EO(int sun = 0;int sum

25、2;for(int i=0;iElAY2)return (xN=l);4. unsigned int intvert(unsigned int x,int p,int n)EpIO(OxpAV20DDxa,pia/EaExa-I,niaDedaxapA3n(lE,14UEe3EMaOU6dB.E?x=ObOOO 1 0001,p=4,n=3xa6x=0b0110 0001 zd:unsigned int intvert(unsigned int x,int p,int n) /14UT p=4,n=3 unsigned int _t = 0;unsigned int _a = 1;for(in

26、t i = 0; i ppAOp lAEoEyODPAoidchar * const p;char const * pEOODPiAchar const * p1以。0衽6即耽6A const char *p /fchar const *p3. aEnAADEa36a*uchar strl = abcH;char str2 = abcH;const char str3 = nabc;const char str4 = nabc;const char *str5 = nabc;const char *str6 = nabc;char *str7 = abcH;char *str8 = abcn;

27、cout ( strl = str2 ) endl;cout ( str3 = str4 ) endl;cout ( str5 = str6 ) endl;cout ( str7 = str8 ) endl;ViaEQO 0 1 1Viadstrl,str2,str3,str4EQEyxeaA-EuAQ6D-7xOpAAUae/,d%aT0str5,str6,str7,str8Ed5Oe-EuAQOJdIai-pA3AQ06dj4. OOIA uAeODpAA%RsizeofOA. DIEIAd% COx void UpperCase( char str) / Yi str ODpADjD x

28、OA.xE 6D xOA, for( size_t i=0; isizeof(str)/sizeof(str0); +i)if( a=stri & stridAU2a36%2i-EyxepA oDj-ii i2aTi- OAapAdfa2i)Eyxe oDiEylapA strEQOd%2H(-OapAEyxe-OdzEa oDjIa6-o-EyAUpAstrEp%EdEQdi6djdxO u，pAdiOe-i A6DEIi(IiIapA6eEyxeia10pADAi0-dd Esizeofx-？OAOUEl dapOide-dsdOideia456xdU-do 自 日 04j x0Oa:Ey

29、xeAux4a0- Ey4EyEiJEOeEQIaEUiO,OeE(；(aEUiOdai 0OxUIBp AIEy%IDDAEj803 86Od06pAuxd(lViEQ32pAE y%Y xUIBiEuddOjOepAiEy%fEQ4dxOV2UAEj6. OIAAae uAepAEa36-20aEHaE2A(20O O/EIO|liAEiEeIUQ)main()(int a5= 1,2,3,4,5)；int *ptr=(int *)(&a+l);printf(%d,%d,*(a+1 ),*(ptr-1);)Ea362,5*(a+1 %fE?a 1 -*(ptr-1 )%fEa4,OzDD*

30、6a*uE2-5&a+l2ECExM0d+lipf3aEiia6dj6aEyxe|LiA/EdE-EC2dAEd56Eyxe|LiA 6Di-%AyEQ5.6intint *ptr=(int *)(&a+l);OoptrEp/iEEQ&CatSDfEQa+Sd-ddEgiAo&aEQEyxedide2EaAaDIIa int (*)5;O.Oe/idl daiu%YdiOeAaDI14dEid(I pAOp-.2f-.AaDfp AOe+106dd%6|j A 6Dj 2 JaE(；3rfEia5pAintEyxeOOe-.Eudddai4d5*sizeof(int)EuOOptrEp4EEQ

31、a51MEQprtde(&a+l)AaDfEQ2dNupA(OapaUO0da)EuOdprt- lda*46Esizeof(int*)a,&apA|j0O-EQdNupA-pdaEWdNu-.aEQEyxeExp0O-.d2%fEQaOl|LiA|j0O-.&aEQOi6, EyxeEx|j0O -.a+1 EQEyxeIAOOaE0|jAp0O -. a 1 ,&a+1EQAO 14 a5,A A S A A A 2 A AA、7. QelEOOIA uAeODE2AxIEIa1) .int main()(char a;char *str=&a;strcpy(str,nhello);pri

32、ntf(str);return 0;)z3;A6DiastrOAaAUz3ei)dUa-a-0Eudi3iEia3ddU*6didxdux/d2E!60didxduaAdiOeEuOiM0diEaEi,EddOyEEa3 oa1u-.p doiaO0DDAUOU(AD 10pdA3iDdAAjStrcpypAdUaEystring.hdD?iDdpAdodudUODDAUIAD pVidA3IDoAA/2) .char* s=AAA;printf(%s,s);s0=B; printf(%s,s);ODE2AX7Qd: AAAEQxO ux3AjsEqdiOe-djddadxO-ux3A-EuO

33、OEuA-?spAEod %iODIEiaicosnt char* s=,AAA;E66dddiaEQAi,-.EudO(IOEQs0MAi3dp2Ux-?EQ2oi- pAj1*D ,66x%i土。6rGA.6W 當跳 A3,62tgy2.卩0圧串 Ad,3&#define Min(X, Y) (X)(Y)?(Y):(X) /Mai2A6D;2mQ跳直TM3GE)%-36a6AN/iDiipN_.rAa66AeAcDE&N-id:while(l)dOBfor(;) /QA.EAQ5dIA3 j C i0%iixGstatic|j Ax4-OAEQE2A %d: 1 )%dV+aAi,x-?6

34、A6d 60- EyaE4paE0.3) OUAQeAUp Astatic, 。巨土G宜0A茂AOrA並ii- 6如6-0必6。- Eyp AEOA(iildWUEuA4-EupAAeAU4) OUAaODpAstatic3EO+aAE6OUduoAaEiiOpOD(|OAapAEiiOD(Oi6d6D士,4*i0%iixGconst6D62Az。的証0 :1)土点%3巨6。2入!4区24，、A A A AA A A A5)iEOODIEI2IEy,x4-IaEaEe2IEy.6)DtEI-Ey,AO1ddlapAAr.7)DtEiAapA3EO0-Ey,2iAaAaODpAEy%Y3EO.5

35、j010,4uxdvolatile6DE2A-dai)%U36Eyid2f-|jAAyx66: iaE%+adediop AOpEAUOU+aOe-rlyi/ia2ap】和 AQei.dlAA+ajf s e ea z v a a , AyxO: 2%JjEOO;駅IB3iO)0e04Iddidint func(int param)pA0甑1. ODdOi A+i iE0int a=248; b=4;int const c=21 ;const int *d=&a;int *const e=&b;int const *f const =&a;QeIEIAADiziEAADaade24-uOI/,IaE2AxQz3:*c=32;d=&b;*d=43;e=34;e=&a;f=0x321f;* cG整Cjj62A-0。1* d Ep AEEQcon