第二次上机指导
任务1:显示美元和人民币的汇率
实验内容:编写一个“显示美元和人民币的汇率”C 程序
实验目的:进一步掌握简单 C 程序的编写和运行的过程
说明:假设100 美元=621 人民币,程序显示100、200、300….1000 美元与人民币汇率表
我的程序
void main();
{int a,b;
a=100;
while(a<=1000)
{b=621*a;
a=a+100;
printf("%d美元=%d人民币\n",b,a);
}
return 0;
}
运行结果
···················································任务分割线···································································································
任务2:了解int 和float 变量类型
实验内容:修改”华氏温度与摄氏温度对照表”
实验目的:了解“同一变量”定义不同数据类型,如何影响程序运行结果
第一次程序
;int main()
{ int f;
int c;
int lower=0;
int upper=300;
int step=20;
f=lower;
printf("李乔峰,38\n");
while (f<=upper)
{c=(5/9)*(f-32);
printf("%d\t%d\n",f,c);
f=f+step;
}
}
运行结果
修改后的程序
;int main()
{
float f;
float c;
float lower=0;
float upper=300;
float step=20;
f=lower;
printf("李乔峰,38\n");
while (f<=upper)
{
c=(5.0/9.0)*(f-32.0);
printf("%f\t%f\n",f,c);
f=f+step;
}
return 0;
}
运行结果
···········································任务分割线····································································································
小结
今天我了解了INT和FLOAT的区别
INT对应的是%d
而FLOAT对应的是%f
勿忘