函数查找

#include <stdio.h>
#include <stdlib.h>



int search();


int main()
{


   int index = search();
   printf("找到的元素的下标是:%d\n",index);

   return 0;


}

int search()
{
    int nums[] = {10,20,30,40,50};
    int searchNum;
    int searchIndex = -1;             //给一个不可能的数字
    int i;

    printf("请输入要找的数字:\n");
    scanf("%d",&searchNum);

    for (i = 0; i < 5; i++)
    {
        if( searchNum == *(nums +i))
        {

            searchIndex = i;   //记录下标
            break;
        }

    }

    return  searchIndex;
}

//没找到

 

 //找到了