实验一 C运行环境与最简单程序设计

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

3.输入x,y,编写程序求z=x+1/|y|的值

#include<stdio.h>
#include<math.h>
int main(){
    float x,y,z;
    scanf("%f,%f",&x,&y);
    z=x+/fabs(y);
    printf("%d,%15.6f,%e\n",int(z),z,z);
    return ;
}