C语言：输入圆的半径r，输出圆的周长和面积

#include <stdio.h>#include <stdlib.h>int main(){float r,p=3.14159,C,S;printf("输入圆的半径r\n");scanf("%f",&r);C=2*p*r;S=p*r*r;printf("圆的周长C=%f\n",C);printf("圆的面积S=%f\n",S);return 0;}...

tianjiayebb

71058人浏览 · 2020-11-22 21:05:18

tianjiayebb · 2020-11-22 21:05:18 发布

#include <stdio.h>
#include <stdlib.h>

int main()
{
float r,p=3.14159,C,S;
printf("输入圆的半径r\n");
scanf("%f",&r);
C=2*p*r;
S=p*r*r;
printf("圆的周长C=%f\n",C);
printf("圆的面积S=%f\n",S);
return 0;
}