笔试linux及面试题cc题解

charstr1[]="abc";charstr2[]="abc";constcharstr3[]="abc";constcharstr4[]="abc";constchar*str5="abc";constchar*str6="abc";coutboolalphastr1==str2endl;coutboolalphastr3==str4endl;coutboolalphastr5==str6endl;C+AB，在哪几种情况下BA？[C++中等试题]classBpublicABAclassBoperatorABAclassAAconstB&Anon-explicitB（可以有其他带默认值A&operatorconstA&voidUpperCase(charstrstr{for(size_ti=0;i<sizeof(str)/sizeof(str[0]);++i)if('a'<=str[i]&&str[i]<='z')str[i]-=('a'-'A'}charstr[]=cout"strsizeof(str)/sizeof(str[0])endl;UpperCase(str);cout<<str<<voidchar2Hex(charc16{charch=c/0x10+'0';if(ch>'9')ch+=('A'-'9'-charcl=c%0x10+'0';if(cl>'9')cl+=('A'-'9'-1);cout<<ch<<cl<<'';}charstr[]"Ilovefor(size_ti=0;i<strlen(str);++i)char2Hex(str[i]);cout<<structTest{Test(int)Test()voidfun()voidmain(void{TestTest}cout<<(true?1:"1")<<endl;unsignedintconstsize1=2;charstr1[size1];unsignedinttemp=0;cin>>temp;unsignedintconstsize2=temp;charstr2[size2];structCLS{intCLS(inti):m_i(i){}}CLScout<<obj.m_i<<class{EmptyEmpty(constEmpty&~EmptyEmpty&operator=(constEmpty&Empty*operator&();//取址运算符constEmpty*operator&()constfloata=1.0f;cout<<(int)a<<endl;cout<<(int&)a<<coutboolalphaint)a(int&)aendl;floatb=0.0f;cout<<(int)b<<endl;cout<<(int&)b<<coutboolalpha(int)b(int&)bendl;vectorarray;array.push_back(1array.push_back(2array.push_back(3for(vector::size_typei=array.size()-1;i>=0;iarray{cout<<array[i]<<}typedefvectorIntArray;IntArrayarray;array.push_back(1);array.push_back(2array.push_back(2array.push_back(3arrayfor( toritor=array.begin();itor!=array.end();++itor{if(2==*itor)array.erase(itor}void*mymemcpy(void*dest,constvoid*src,size_tcount{char*pdest=static_cast<char*>(destconstchar*psrc=static_cast<constchar*>(srcif(pdest>psrc&&pdest<psrc+cout{for(size_ti=count-1;i!=-1;--i)pdest[i]=psrc[i];}{for(size_ti=0;i<count;++i)pdest[i]=psrc[i];}return}intmain(void{charstr[]=" mymemcpy(str+1,str+0,9);cout<<str<<endl;system("Pause");return0;}C++/CC++/CC++/CBOOLfloat,if（100,0.0FALSEintn较的if语句为：ifn0ifn0BOOLflagiffloatxifchar*pif二、以下为WindowsNT下的32位C++程序，请计算sizeof的值（10分）charstr[]=“ o”;char*p=str;intn=10;sizeof(str)=sizeof(p)=sizeof(n)=voidFunc(char{sizeof(str)}void*p=malloc(100sizeof(p)1ifndef/define/endif2、#include#includefilename.h”3、const（请至少说明两种4、在C++程序中调用被C编译器编译后的函数，为什么要加extern for(i=0;{if(condition)}if{for(i=0;i++;)}{for(i=0;i++;)}voidGetMemory(char*p){p=(char}void{char*str=NULL;GetMemory(str);strcpy(str," oworld");}charcharp[]=" oworld";returnp;}void{char*str=NULL;str=GetMemory();}VoidGetMemory2(char**p,int{*p=(char}void{char*str=NULL;GetMemory(&str,100);strcpy(str," o");}void{char*str=(char*)strcpy(str, (str);if(str!=NULL){strcpy(str,}}strcpychar*strcpy(char*strDest,constcharC++/C 到strDest，为什么还要char*类型的返回值Stringclass{String(constchar*strNULLString(constString&other);~String(void)String&operate(constString&other);char*m_data附录CC++/CBOOLfloat,if（10BOOLflagif（3if(flag)ifflagif(flag==TRUE)if(flag==1)if(flag==FALSE)if(flag==0)floatxif（4constfloatEPSINON=if((x>=-EPSINON)&&(x<=if(x==0.0)if(x!=char*pif（3if(p==NULL)if(p!=if(p==0)if(p!=if(p)if二、以下为WindowsNT下的32位C++程序，请计算sizeof的值（10分）charstr[]=“ o”;char*p=str;intn=10;sizeof(str6（2）sizeof(p)=4（2）sizeof(n)=4（2）voidFunc(charstr[100]){sizeofstr4（2}void*p=malloc(100sizeofp4（21、头文件中的ifndef/define/endif干什么用？（5分） 2、#include#includefilename.h”（5 C\C++面试Q1OSITCP/IPQ2IPTCPUDPQ3Q4C+CstructQ5Q6Q7Q8:8086:一般建议参加的研发面试的同学先要准备一下相关的知识，软件的主:是看看C两道c试题1、一个学生的信息是：，学号，，等信息，用一个链表，把这些学生信息连在一起，给出一个age,在些链表中删除学生等于age的学生信息。程序代码＃include＃includestructstu{charname[20]; intno;intstructstu*structstu*creatlist(int{intstructstuh=(structstu*)malloc(sizeof(structstu));h->next=NULL;{s=(structstu*)malloc(sizeof(structstu));p->next=s;printf("Pleaseinputtheinformationofthestudent:name noage\n");scanf("%s%c%d%d",s->name,&s-> s->next=p=}printf("Createsuccessful!");}voiddeleist(structstu*s,int{structstu*p;{p=s=s-printf("Therecordisnotexist.");{p->next=s->next;printf("Deletesuccessful!");}}voiddisy(structstu{s=s->next;{printf("%s%c%d%d\n",s->name,s-> s=s->next;}}int{structstu*s;intn,age;printf("Pleaseinputthelengthofseqlist:\n");s=creatlist(n);printf("Pleaseinputtheage:\n");return0;}程序代码＃include＃includevoiduppers(char*s,char{{*us=*s-32;*us=}*us=}int{char*s,*us;charprintf("Pleaseinputastring:\n");s=ss;printf("Theresultis:\n%s\n",us);}客户端如何.Net组件实现WebService？WindowsDNA软件外企C++面试题C\C++面试题Whatisachievedbyprefixingthe'static'keywordtoafile-levelfunctionorfile-levelvariabledeclaration?Describethedifferencebetweenthe“ISA”and“HASA”objectWhichisthestrongerrelationshipandJava&C#supportinterfacesdirectlywiththe“interface”keyword.C++doesnothavean“interface”keyword.HowdoyoucreateaninterfaceinWhere/whenistheuseofinterfacesespeciallyIfaprogramrequiresalargenumberofexecutioncontextswhatcanbedonetominimisethreadschedulingoverhead?Whatdoesitmeantosaythatafunctionisreentrant?Whataresomeofthewaysofachievingre-entrancy?c语言面试题2道（）C++面试题更1、一个学生的信息是：，学号，，等信息，用一个链表，把这些学生信息连在一起，给出一个age,在些链表中删除学生等于age的学生信息。#include"stdio.h"#include"conio.h"structstu{charname[20]; intno;intstructstu*structstu*creatlist(int{intstructstuh=(structstu*)malloc(sizeof(structh->next=NULL;for(i=0;inext=printf("Pleaseinputtheinformationofthestudent:name noage\n");scanf("%s%c%d%d",s->name,&s-> s->next=NULL;p=s;}printf("Createsuccessful!");}voiddeleist(structstu*s,int{structstu*p;{p=s=s-printf("Therecordisnotexist.");{p->next=s->next;printf("Deletesuccessful!");}}voiddisy(structstu{s=s->next;{prin