在串中查找给定字符集中的字符

[c]代码库

#include <stdio.h> 
#include <string.h> 

int main(void) 
{ 
   char *string1 = "abcdefghijklmnopqrstuvwxyz"; 
   char *string2 = "onm"; 
   char *ptr; 

   ptr = strpbrk(string1, string2); 

   if (ptr) 
      printf("strpbrk found first character: %c\n", *ptr); 
   else 
      printf("strpbrk didn't find character in set\n"); 

   return 0; 
}