c语言实验一

#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;

}

#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<math.h>

int main()

{

int x,y,z;

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

z=x+1/abs(y);

printf("%d\n%15.6f\n%e\n",z,(double)z,(double)z);

return 0;

}