实验一

#include "stdafx.h"

#include <stdio.h>

int main(int argc, char* argv[])

{

 int a,b,sum;

 a=123;  

b=456;

 sum=a+b;

 printf("sum is %d\n",sum);  return 0;

}

 

#include "stdafx.h"

#include <stdio.h>

int main(int argc, char* argv[])
{
 char c1,c2;
 c1=97;
 c2=98;
 printf("c1=%c,c2=%c\n",c1,c2);
 return 0;
}

#include "stdafx.h"

#include <stdio.h>

int main(int argc, char* argv[])

{  

char c1,c2;

c1=197;  

c2=198;

printf("c1=%c,c2=%c\n",c1,c2);

return 0;

}

 

#include "stdafx.h"

#include <stdio.h>

#include <math.h>

int main(int argc, char* argv[])
{
 float     x,y,z;
 scanf("%f%f",&x,&y);
 z=x+1/fabs(y);
 printf("z=%d\n",(int)z);
 printf("z=%15.6f\n",z);
 printf("z=%e\n",z);
 return 0;
}