c语言输入圆半径计算圆周长和面积

#definePI3.1416//后面不需要;#include"stdio.h"//注意关键字之间要有空格intmain(){floatr,s,c;scanf("%f",&r);c=2*PI*

太水了,按你写的输入输出格式声明变量,然后把这几行输入输出格式都写在主函数里

在输入半径的时候,语句改成scanf("%d",&r);不过你最好将半径定义成float型变量,格式的问题

floatnum,r,a,c;for(num=1;num再问：框图怎么画？再答：...你要自己学习才行这个很简单的再问：主要是循环符号不会用

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

#include#includeusingnamespacestd;classCircle{doubler,Area,Circumference;public:Circle(doublea=0);Ci

#includeusingnamespacestd;classcircle{private:doubleradius;public:circle(doubler=0.0);voidinput();do

PrivateSubCommand1_Click()DimbjAsSingleDimzzAsSingleDimmjAsSinglebj=CSng(Text1.Text)Ifbj

#include#include#defineP3.14doublearea(doubler){returnP*r*r;}doubleCircumference(doubler){return2*P*

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

#include#definepi3.14159main(){doubleL,S,V,A,B;/*L是圆周长,S是圆面积,V是圆球体积,A是圆球表面积,B是圆柱面积*/floatr,h;printf(

#includemain(){floatpi,r,h,l,s,sq,vq,vz;pi=3.141592654;printf("r=,h=\n");scanf("%f,%f",&r,&h);l=2*pi

ConstPI=3.14159DimrAsDoubleDimCAsDoubleDimSAsDoubleIfIsNumeric(Text1.Text)Thenr=Val(Text1.Text)C=2*P

#include"stdio.h"#definePi3.14voidmain(){floatr,c,area;printf("请输入圆的半径：");scanf("%f",&r);c=2*Pi*r;ar

#includevoidmain(){doubler,s,l;printf("请输入圆的半径\n");scanf("%lf",&r);s=3.14159*r*r;l=2*3.14159*r;print

#include"stdafx.h"#include#includeusingnamespacestd;classCircle{doubler,Area,Circumference;public:Ci

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

input"输入半径:"torc=2*3.14*rs=3.14*r*rv=4*3.14*r^3/3?"圆周长=",c?"圆面积=",s?"球体积=",v

#include#include#includeusingnamespacestd;intmain(){intr=15,h=3;doublec=2*3.14*r;doubles=pow(r,2)*3.

%a.blfa,b是两个整数,a代表输出的时候对应实数的长度,b代表小数位数.如%7.2lf的话,假设你要输出7.5,就会输出___7.50_代表空格,如果实数的长度超过a,就会直接输出.如输出123