先把问题说清楚

/*当胡乱为数组赋予一群初值，又不想一个一个地去数……怎样测试数组的大小？*/
#include <stdio.h>
main()
{
int ary[ ]={3,1,4,-4,8,9,1,0,3,2,0,9,8,7,1,2,3,4,5,6,9,9,7,7,20,1};
printf("There are %d numbers\n",sizeof(ary)/sizeof(ary[0]));
}