%f" area length H=0 v);中间算法你自己应该可以写吧..我把公式弄忘记了.. ||| #include "stdio.h"main(){ float R=0 area zhouchang 圆的表面积v = %5.2lf" 圆的面积area = %5.2lf &H)....printf ("圆的周长zhouchang = %5.2lf &R H;double zhouchang;double area;double v;printf ("请输入圆的半径和高:");scanf ("%lf%lf" s1");} ||| double R s c 圆柱表面积为%.2f 面积为%.2f &r);c=3.14*2*r;s=3.14*r*r;s1=2*s+s*h;printf("圆的周长为%.2f &r);printf("输入圆的柱高:");scanf("%f s1;printf("输入圆的半径:");scanf("%f s c h #include<stdio.h>void main(){float r 柱体高"); scanf("%f Aarea);} area); printf("Carea=%.2f/n" length); printf("Area=%.2f/n" &H); length=2*IP*R; area=IP*R*R; Aarea=H*length+2*area; printf("Length=%.2f/n" &R Aarea; float IP=3.14; printf("请输入半径