用含i的表達式表示i的符號
#include <stdio.h>
int main()
{
int sum = 0;
int i = 1;
for(i=1;i<=100;i++)
{
sum=sum+((i%2)-(i-1)%2)*i;
}
printf("sum=%d\n",sum);
#include <stdio.h>
int main()
{
char c = 'a';
int n ; //將c賦值給n
float f ; //將c賦值給f
double d ;
n=c;
f=c;
d=c;//將c賦值給d
printf("%d\n",n);
printf("%f\n",f);
printf("%lf\n",d);
return 0;
}
#include<stdio.h>
#define a 97
int main()
{ char c = 'a';
int n = c;
float f = n;
double b = f;
printf("%d\n",n);
printf("%f\n",f);
printf("%f\n",b);
return 0;
}
