方法:#include <stdio.h>#define PI 3.14int main(){float r,c,area;printf("请输入圆的半径:");scanf("%f",&r);c=2 * PI * r;area=PI * r * r;printf("该圆的周长是%.2f,面积是%.2f\a",c,area);}9-|||-#import "FRTabBarController.h"-|||-10-|||-11-|||-#import "FRTabBar...
1.面积表达式如下:#include <stdio.h> #include <conio.h> void main() { double r; double s; double pi; pi = 3.1415926; printf("The radius:"); scanf("%lf",&r);s = pi*r*r; printf("The Area is:%g\n",s);} 2.周长表达式如下:#include<stdio.h>#define PI 3.1415926void zc(float...
例题1:输入圆的半径r的值,输出其面积。 代码如下 #include<stdio.h> double fun(double r) { return 3.14159*r*r;//圆的面积公式为Πr2,这里Π的值取3.14159 } main() { double r; printf("输入圆的半径r的值:"); scanf("%lf",&r); printf("圆的面积=%lf\n",fun(r)); } ...
#include #define PI 3.1415927 int main() { double r; scanf("%lf",&r); printf("%lf,%lf...
printf("请输入圆的半径：");scanf("%f", &r);4. 计算圆的周长和面积。周长公式为`c = 2 * PI * r`，面积公式为`area = PI * r * r`。c c = 2 * PI * r;area = PI * r * r;5. 最后，使用`printf`函数输出计算结果，保留两位小数。c printf("该圆的周长是%.2f，面积...
C语言问题:输入圆的半径r求圆的面积,和周长L. 答案 #include int main(){int r = 0;float a = 0,l = 0;scanf("%d",&r);a = r * r * 3.14;l = r * 2 * 3.14;printf("面积:%f,周长:%f",a,l); return 0;}相关推荐 1C语言问题:输入圆的半径r求圆的面积,和周长L.反馈 收藏 ...
用C语言编写:输入半径R,求圆的周长、面积和球的体积. 答案 最佳答案 #include "stdio.h"#define PI 3.141592653 //定义πint main(void){ float C,A,V,r;printf("请输入半径:");//提示输入scanf("%f",&r);//输入半径C=2*PI*r;//周长A=PI*r*r;//面积V=4/3*PI*r*r*r;//体积printf("\...
C语言编程 输入圆的半径 r ,计算圆的周长和面积 .其中 π =3.1416#define PI 3.1416;#include"stdio.h"int main(){float r,s,c;scanf("%f",&r);c=2*PI*r;s=PI*r*r;printf("%6.2f,%6.2f\n",s,c);return 0;}两个错误呀,error C2100:illegal indirection 扫码下载作业帮搜索答疑一搜即得 答案...
include <stdio.h>#define PI 3.1415927int main(){ double r; scanf("%lf",&r); printf("%lf,%lf,%lf\n", 2*PI*r, PI*r*r, PI*r*r*r*4/3); return 0;}
h> define PI 3.14 void main(){ float r,l,area;printf("please input r:\n");scanf("%f", &r);if(r>=0){ area=PI*r*2;l=2*PI*r;printf("the area is %.2f\n", area);printf("the l is %.2f\n", l);} else printf("Input error!\n");return 0;} ...