名字
# incluedeint main ()
{
printf("hello 潘\n");
return 0;
}
圓的面積
#include<stdio.h>
#define PI 3.14
double calculateSquare(int radius);
int main()
{
int cRadius=0;
double square=0.0;
printf("圓的半徑:\n");
scanf("%d",&cRadius);
square=calculateSquare(cRadius);
printf("圓的面積是:%f\n",square);
return 0;
}
double calculateSquare(int radius)
{
double result=PI*radius*radius;
return result;
}
