# include & ltmath.h & gt
#定義PI 3.14159
void main(){
浮點r1,r2,h,s1,s2,s3,v,l;//l是總線長度。
Printf("圓臺的計算(默認單位為cm,只輸入數字,不輸入單位):\ n ");
printf(" r 1 = ");
scanf("%f ",& ampr 1);
printf(" R2 = ");
scanf("%f ",& ampR2);
printf(" h = ");
scanf("%f ",& amph);
s 1 = PI * r 1 * r 1;
s2 = PI * r2 * r2
l = sqrt(h * h+(R2-r 1)*(R2-r 1));
S3 = PI *(r 1+R2)* l;
v =(r 1 * r 1+R2 * R2+r 1 * R2)* PI * h/3.0;
printf("s1=%.4fcm^2\n",s1);
printf("s2=%.4fcm^2\n",s2);
printf("s3=%.4fcm^2\n",s3);
printf("v=%.4fcm^3\n",v);
}