你题目的解答代码如下:(如有帮助,望采纳!谢谢! 点击我这个回答右上方的【采纳】按钮)
#include<stdio.h>
int main()
{
float r,c,s,sq,vq;
float pi = 3.141526;
printf("请输入圆半径r:");
scanf("%f",&r);
c = 2 * pi*r;
s = pi*r*r;
sq = 4 * pi*r*r;
vq = (4 / 3)*pi*r*r*r;
printf("圆周长为:c=%6.2f\n",c);
printf("圆面积为:s=%6.2f\n",s);
printf("圆球表面积为:sq=%6.2f\n", sq);
printf("圆球体积为:vq=%6.2f\n", vq);
return 0;
}