C语言及程序设计初步例程-13 数值型数据的存储原理

贺老师教学链接  C语言及程序设计初步 本课讲解

溢出初探

#include <stdio.h>


int main()
{
	short a, b;
	a= 32760;
	printf("a=%d\n",a);
	b = a + 10;
	printf("b=%d\n",b);
	return 0;
}

#include <stdio.h>


int main()
{
    double a,b,c;
    a=1234567890.123456789;
    b=987654321.987654321;
    c=a+b;
    printf("  %22.9lf\n",a);
    printf("+ %22.9lf\n",b);
    printf("------------------------\n");
    printf("= %22.9lf\n",c);
    return 0;
}

#include <stdio.h>


int main()
{
    double a = 0.65f;
    double b = 0.6f;
    double c = a - b;
    if (c==0.05)
        printf("对了！\n");
    else
        printf("错了！\n");
    printf("%10.8lf %10.8lf\n", a, b);
    return 0;
}