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展訊科技筆試真題

  1.給出字符串pszbuff, 將其全部轉(zhuǎn)化為大寫,a轉(zhuǎn)化為a

  #include

  #include

  #include

  char *convert(const char* dest)

  {

  int ilen=0;

  char *tmp=(char *)dest;

  char *str;

  //strcpy(str,dest);

  while(*dest++) ilen++;

  str = (char *)malloc(ilen);

  while(*tmp)

  {

  if ( (*tmp>'a') && (*tmp<'z')) {

  *str = *tmp + 'a' - 'a' ;

  }else{

  *str = *tmp;

  }

  str++;

  tmp++;

  }

  *str='\0';

  return str-ilen;

  }

  int main(int argc, char* argv[])

  {

  const char pszbuff[] = "abcd";

  char *cc;

  cc = convert(pszbuff);

  printf("%s",cc);

  getchar();

  return 0;

  }

  2. 給出輸出結(jié)果,假設(shè)是cpu32位

  int main(int argc, char* argv[])

  {

  char *str="1234567890";

  long *plong= (long *)str;

  char *pchar = str;

  plong++;

  pchar++;

  printf("%d %d %s\n",sizeof(long),sizeof(plong),plong);

  printf("%d %d %s\n",sizeof(char),sizeof(pchar),pchar);

  printf("%d",sizeof(int));

  getchar();

  return 0;

  }

  答案:

  4 4 567890

  1 4 234567890

  4

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