上机实验

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

*********************************************************************************************************************************************************

#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;
}

第二次实验

#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;
}

#include<stdio.h>
#include<math.h>
int main()
{
	double x,y,z;
	scanf("%lf%lf",&x,&y);

	y=fabs(y);
	z=(x+1)/y;
	printf("整型 %d\n 浮点%15.6f\n 指数%e\n",(int)z,z,z);
    
	return 0;
}