实验一 C运行环境与最简单程序设计

(1)

#include<stdio.h>
int main()
{
 int a,b,sum;
 a=123;
 b=456;
 sum = a + b;
 printf("sum is %d\n",sum);
    return 0;
}

 

(2)

#include<stdio.h>
int main()
{
 char c1,c2;
 c1=97;
 c2=98;
 printf("c1=%c,c2=%c\n",c1,c2);
 printf("c1=%d,c2=%d\n",c1,c2);
    return 0;
}

 

#include<stdio.h>
int main()
{
 char c1,c2;
 c1=197;
 c2=198;
 printf("c1=%c,c2=%c\n",c1,c2);
 printf("c1=%d,c2=%d\n",c1,c2);
    return 0;
}

 

 

 

(3)

#include<stdio.h>

#include<math.h>

int main()

{  

double x,y,z;  

printf("请输入两个数:\n");  

scanf("%lf%lf",&x,&y);

 z = x + 1/fabs(y);  

printf("%d\n",(int)z);

 printf("%15.6f\n",z);

 printf("%e\n",z);    

return 0;

}

 

 

posted @ 2019-04-11 14:58  Hachiko324  阅读(137)  评论(0编辑  收藏  举报