int?main()
{
int?a[]={1,2,3,4,5,6,7,8};//舉個例子
int?x,i=0;
scanf("%d",&x);
for(i=0;i<sizeof(a);i++)
if(x==a[i])
printf("索引i=%d\n",i);
break;
}?
}
if(i>=sizeof(a))
printf("x不在數組中\n");
return?0;