删除指定字符串的相应字符

file://localhost/d:/My%20Documents/

假设字符串 "cabcdefcgchci" ，那么要求你写一个函数，把该字符串中所有的字符 ’c’ 删除掉。那么结果应该是 "abdefghi"。


00和01是用for循环来实现的算法

00：

char * DeleteChararcter_00(char *str,int c)

{

  char *p,*ret;

   

  for(ret= p = str;*p;p++)

  {

  if(*p == c)

  continue;

  *str++ = *p;

  }

  *str = '/0';


  return ret;

}

01:

char * DeleteChararcter_01(char *str,int c)

{

  char *p,*ret;

   

  for(ret= p = str;*p;p++)

  {

  if(*p != c)

  *str++ = *p;

  }

  *str = '/0';


  return ret;

}


02和03是用while循环来实现的算法

02:

char * DeleteChararcter_02(char *str,int c)

{

  char *p,*ret;

   

  ret = p = str;

  while(*p)

  {

  if(*p++ == c)

  continue;

  *str++ = *(p-1);

  }

  *str = '/0';


  return ret;

}

03：

char * DeleteChararcter_03(char *str,int c)

{

  char *p,*ret;

   

  ret = p = str;

  while(*p)

  {

  if(*p != c)

  *str++ = *p;

  p++;

  }

  *str = '/0';

   

  return ret;

}