//例8.cpp
#include<stdio.h>
#include"例8.h"
void main()
{  char str[ ]="banana";
   char*p,ch;
   printf("輸入所要查找的字符：");
   scanf("%c",&ch);
   p=lookup(str,ch);
   if(p!=NULL) printf("查找到,是第%d個(gè)字符！\n",p-str+1);
   else printf("查找不到！\n");
}