#includeint main(){int a[]={1,2,3,4,5,6,7,8};//举个例子int x,i=0;scanf("%d",&x);for(i=0;i{ if(x==a[i]) { printf("索引i=%d\n",i); break; } }if(i>=sizeof(a))printf("x不在数组中\n");return 0;}
