C语言每日题目（打卡第二天）

1.设圆半径r=1.5，圆柱搞h=3，求圆周长，圆面积，圆球表面积，圆球体积，圆柱体体积。用scanf输入数据，输出计算结果，输出时要求有文字说明，取小数点后2位数字；
PI=3.1415926
#include<stdio.h>
int main()
{
#define PI 3.1415926
int h;
float r,area=0,perimeter=0,roundPerimeter=0,roundArea=0,cylinderVolume=0;
printf(“please input r&h\n”);
scanf("%f\n",&r);
scanf("%d",&h);
perimeter=2 * PI * r;
printf(“圆周长为%0.2f\n”,perimeter);
area=PIrr;
printf(“圆面积为%0.2f\n”,area);
roundPerimeter=4 * PI * r * r;
printf(“圆球表面积为%0.2f\n”,roundPerimeter);
roundArea= 3.0/4.0 * PI * r* r * r;
printf(“圆球体积为%0.2f\n”,roundArea);
cylinderVolume =area*h;
printf(“圆柱体积为%0.2f\n”,cylinderVolume);
return 0;
}