C语言库strpbrk()函数

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

int main () {
   const char str1[] = "abcde2fghi3jk4l";
   const char str2[] = "34";
   char *ret;

   ret = strpbrk(str1, str2);
   if(ret) {
      printf("First matching character: %c/n", *ret);
   } else {
      printf("Character not found");
   }

   return(0);
}