...PI 3.1415926 main() { float r=2,c; c=2*PI*r; printf("%f",c...
define PI 3.1415926 宏定义,就是PI表示3.14...float 代表的是一种数字类型,,f是控制后面的C的输出格式,定义了C是float类型,就要 用%f输出。。其他输出格式你可以去看一些资料
求圆的周长面积体积 c语言
include <stdio.h># include <math.h># define PI 3.1415926int main (void){double r,c,s,v;printf("请输入圆的半径\\n");scanf("%lf",&r);c = 2 * PI * r;s = PI * pow(r,2); \/\/1.pow为n次方公式,r^2=pow(r,2),使用需要声明math.h 2.pi PI不同 v = PI * po...
C语言编程求圆的体积
C语言编程求圆球体积如下:include <stdio.h> define pi 3.1415926 int main(){ double r;printf("请输入球体的半径:");scanf("%lf",&r);printf("球体的表面积为:%.2lf\\n",4*pi*r*r);printf("球体的体积为:%.2lf\\n",4.0\/3*pi*r*r*r);return 0;...
c语言、编写程序求圆的周长和面积,要求将圆周率定义为符号常量。_百度...
define pi 3.1415926 void main(){ float r,l,s;printf("请输入圆的半径:");scanf("%f",&r);l=2*pi*r;s=pi*r*r;printf("圆的周长为:%f\\n,圆的面积为:%f\\n",l,s);}
c语言求一个任意半径的圆的面积和周长,且小数位保留两位
include <stdio.h> define pi 3.1415926 void main(){ float r,s,c;printf("请输入半径r:\\n");scanf("%f",&r);s=pi*r*r;c=2*pi*r;printf("%.2f %.2f",s,c);printf("\\n");}
编程实现:半径为2的圆的面积和周长。c语言。。。
include<stdio.h>#define PI 3.1415926main(){double r=2.0;printf("周长为:%lf,面积为:%lf",2*PI*r,PI*r*r);}
...#define PI 3.1415926 int main() { double r,h,c,s,p,q; scanf...
include <stdio.h> define PI 3.1415926 int main(){ double r,h,c,s,p,q;scanf("%f%f",r,h);} r和h是double型的,应该是scanf("%f%f",r,h);
...要求定义如下宏常量ON #define PI 3.14159?
include <stdio.h> define PI 3.14159 define ON 1 int main(){ double r, c, s;while (ON){ printf("请输入圆的半径:");scanf("%lf", &r);if (r <= 0){ printf("半径不能为负数或零,请重新输入。\\n");continue;} c = 2 * PI * r;s = PI * r * r;printf("圆的...
C语言中“ 输入一个非负数,计算以这个数为半径的圆周长和面积。”怎么...
stdio.h"include"math.h"define PI 3.1415926 int main(){ float r,c,s;printf("请输入r:\\n");scanf("%f",&r);while(r<=1e-6){ printf("输入r错误!请重新输入。\\n");scanf("%f",&r);} c=2*PI*r;s=PI*r*r;printf("周长=%.4f\\n", 面积=%.4f\\n",c,s);} ...
#include <math.h>
include <math.h>#include<stdio.h>\/\/scanf头文件#define PI 3.1415926main(){ float r,l,s1,s2,v; scanf("%f",&r); l=2*PI*r;\/\/注意PI为大写 s1=PI*pow(r,2); s2=PI*4*pow(r,2); v=4*PI*pow(r,3)\/3; printf("%f,%f,%f,%f",l,s1,s2,v);...