486.cpp

C Primer Plus(第五版)书后练习 第二章答案(自己做的

#include<stdio.h>
#include<float.h>
void main(void)
{
	printf("FLT_DIG=%d\nDBL_DIG=%d\n",FLT_DIG,DBL_DIG);
//	double dou=1.0/3.0;
//	float flo=1.0/3.0;
		double dou=0.123456789123456789;
		float flo=0.123456789123456789;
	printf("dou's.4=%.4f,\nflo's.4=%.4f\n\n",dou,flo);
	printf("dou's.12=%.12f,\nflo's.12=%.12f\n\n",dou,flo);
	printf("dou's.16=%.25f,\nflo's.16=%.16f\n\n",dou,flo);

}