1.输入半径的值,分别计算并输出圆的面积.圆的周长和球的体积的程序代码

#includeintmain(){floatr,s,l;scanf("%f",&r);s=3.14*r*r;l=2*3.14*r;printf("s=%f,l=%f\n",s,l);return0;

varch:char;//第一行输入的字符r,x,y,z,a,b:longint;//r为半径,x,y,z为三角形边长,a,b为长宽p:double;//p为海伦公式里的一个量beginreadln(

#include#definePI3.1415926\x05\x05voidmain()\x05{\x05doubler,s;scanf("%f",&r);s=PI*r*r;\x05printf("A

main(){doubuti,j,v;intput(doubuti,doubutj);couti>>j;v=put(i,j);cout

这种下程序自己写很容易的,没给你做结果长度的限制,那个也很简单,用NumberFormat就可以,http://hi.baidu.com/love_12365/item/ecd0b5cb10ef8a4

PublicSubcommand1_click()dimrasintegerr=val(inputbox("请输入半径"))s=3.1415926*r^2msgbox"圆的面积为:"&sendsu

#includevoidmain(){floatr,d,Cs;cout

#includeintmain(){doubleR;while(scanf("%lf",&R)!=EOF){printf("%lf\n",R*R*3.14);}return0;}

#include#definepai3.15149256voidmain(){doubler,c,s;printf("pleaseinputr\n")scanf("%lf",&r);printf("c

#include#include#definePI3.14159intmain(void){floatr,h,V=0;printf("Pleaseinputr=h=\n");loop:scanf("%

#includeintmain(){floatget=0;intPosNum=0;intNegNum=0;floatPosSum=0;floatNegSum=0;printf("pleaseinput

#include//希望对您有用#includeintmain(){intx,y;printf("Pleaseenterthenumber:");scanf("%d",&x);if(x

他们的答案好像都没有输出结果.Dim r, s, c As IntegerPrivate Sub Command1_Click()

voidmain(){floatx,y;cin>>x;if(x=10)y=3*x-11;elsey=2*x-1;cout

constpi=3.1416subcircle（byvalrassingle,Lassingle,aassingle,VASSINGLE）L=2*pi*rA=pi*r*rV=4/3*r*r*r*pie

#includevoidmain(){inty;//如果是实数可以将int换为floatintx,i;y=0;for(i=0;i

#includeclasscircle{private:intr;public:voidinput(){cout

三个变量?y关于x的还是关于x的再问：一个变量，b和V是要求输入准确数字的，y是关于x的函数再答：b=2;V=3;x=0:0.01:10;y=-0.178*b/V*(exp(-2.0079.*x)-e

//1#include<stdio.h>#define PI (3.1415)int main(void){    f

什么语言的?C++的这样写#includevoidmain(){floatb;floatc;b=2*3.14*R*H;c=R*R*3.14*H;cout