#include?<stdio.h>
#include?<math.h>
#define?ROUND(x,m)?((int)((x)*pow(10,m)+0.5)/pow(10,m))
int?main()
{ printf("%f,%f",?ROUND(12.3456,1),ROUND(12.3456,2));
?????return?0;
}
運行結果,并給出解釋
yuantongxin
2015-11-25 16:07:18
