#include<stdio.h>
main()
{
	int a;
	int b;
	float fa;
	float fb;
		
	int wa;
	int sa;
	int seki;
	int shou;
	float fshou;
	
	a=255;
	b=16;
	
	wa=a+b;
	sa=a-b;
	seki=a*b;
	shou = a/b;/*割り算した時点で、既に切り捨て。*/
	fa=a;
	fb=b;
	fshou =fa/fb;
	
	printf("wa=%d sa=%d seki=%d shou=%d\n",wa,sa,seki,shou);
	printf("fshou=%f\n",fshou);
	printf("%= %f\n", 254.0 % 3.0);

	fshou= (float)a/b;
	printf("castした場合：fshou=%f\n",fshou);
}