C/C++における文字列切り取りの関数

strtok関数で、その関数は

char *strtok( char *strToken, const char *strDelimit );

 C++         ，  MFC CString       SpanExcluding SpanIncluding            。

      strtok。strtok，SpanExcluding SpanIncluding    MSDN          

strToken   String containing token(s) 

strDelimit
Set of delimiter characters 
戻り値の説明
All of these functions return a pointer to the next token found in
strToken
. They return
NULL
when no more tokens are found. Each call modifies
strToken
by substituting a
NULL
character for each delimiter that is encountered.
例は次のとおりです.
Example

/* STRTOK.C: In this program, a loop uses strtok
 * to print all the tokens (separated by commas
 * or blanks) in the string named "string".
 */

#include 
#include 

char string[] = "A string\tof ,,tokens
and some  more tokens";
char seps[]   = " ,\t
";
char *token;

void main( void )
{
   printf( "%s

Tokens:
", string );
   /* Establish string and get the first token: */
   token = strtok( string, seps );
   while( token != NULL )
   {
      /* While there are tokens in "string" */
      printf( " %s
", token );
      /* Get next token: */
      token = strtok( NULL, seps );
   }
}

Output

A string   of ,,tokens
and some  more tokens

Tokens:
 A
 string
 of
 tokens
 and
 some
 more
 tokens