// 设圆半径r = 1.5，圆柱高h = 3，求圆周长，圆面积，圆球表面积，圆球体积，圆柱体积
// 要求：用scanf输入数据，取小数点后两位

#include <stdio.h>

int main()
{
	float r,h;
	float c,s,sq,vq,vz;
	float pai = 3.1415926;
	printf("请输入圆半径：");
	scanf("%f",&r);
	printf("请输入圆柱高：");
	scanf("%f",&h);
	c = 2 * pai * r;
	s = pai * r * r;
	sq = 4 * pai * r * r;
	vq = ( 4 / 3 ) * pai * r * r * r;
	vz = s * h;
	printf("圆周长是：%4.2f\n",c);
	printf("圆面积是：%4.2f\n",s);
	printf("圆球表面积是：%4.2f\n",sq);
	printf("圆球体积是：%4.2f\n",vq);
	printf("圆柱体积是：%4.2f\n",vz);

	return 0;
}

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